* [misc]progress:  [Phase 1 of 3] Setting up.
* * * [misc]progress:  [1/2] Preparing points
* * * [misc]progress:  [2/2] Setting up program.
* [misc]progress:  [Phase 2 of 3] Improving.
* [enter]simplify:  Simplifying (/ (* (atan2 v1_y v1_x) 180) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * [misc]progress:  iteration 1 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-event (λ (v1_y v1_x) (/ (* (atan2 v1_y v1_x) 180) PI))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 3 ] rewriting at (2 1)
* * * * [misc]progress:  [ 2 / 3 ] rewriting at (2)
* * * * [misc]progress:  [ 3 / 3 ] rewriting at (2 1 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 3 ] generating series at (2 1)
* [misc]approximate:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (* (atan2 v1_y v1_x) 180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 v1_y v1_x)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (* 0 180)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 v1_y v1_x))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 v1_y v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]approximate:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (* 0 180)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 (/ 1 v1_y) (/ 1 v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 (/ 1 v1_y) (/ 1 v1_x))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x)))) into (* 180 (atan2 v1_y v1_x))
* [misc]approximate:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (* 0 180)) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 (/ -1 v1_y) (/ -1 v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 (/ -1 v1_y) (/ -1 v1_x))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x))))) into (* 180 (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 2 / 3 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (/ (* (atan2 v1_y v1_x) 180) PI) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 v1_y v1_x) 180) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 v1_y v1_x) 180) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 v1_y v1_x)) PI) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 v1_y v1_x) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 v1_y v1_x) 180) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 v1_y v1_x)) PI) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 v1_y v1_x) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 v1_y v1_x) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 v1_y v1_x) 180) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 v1_y v1_x)) PI) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 v1_y v1_x) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) PI) into (/ (atan2 v1_y v1_x) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (* 0 180)) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 v1_y v1_x) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 v1_y v1_x) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (/ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) PI) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) PI) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) PI) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) PI) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (* 0 180)) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ 1 v1_y) (/ 1 v1_x)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (/ (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) PI) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) PI) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) PI) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) PI) in v1_y
* [misc]taylor:  Taking taylor expansion of (* (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) 180) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (/ (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) PI) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (* 0 180)) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (+ (* 0 0) (* 0 180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* (atan2 (/ -1 v1_y) (/ -1 v1_x)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* * * * [misc]progress:  [ 3 / 3 ] generating series at (2 1 1)
* [misc]approximate:  Taking taylor expansion of (atan2 v1_y v1_x) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) into (atan2 v1_y v1_x)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (pow (* (atan2 v1_y v1_x) 180) 1) PI))>
* * * * [misc]progress:  [ 2 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (exp (log (* (atan2 v1_y v1_x) 180))) PI))>
* [enter]simplify:  Simplifying (log (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* [exit]simplify:  Simplified to (log (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (log (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 3 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (log (exp (* (atan2 v1_y v1_x) 180))) PI))>
* [enter]simplify:  Simplifying (exp (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* [exit]simplify:  Simplified to (exp (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (exp (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 4 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* (cbrt (* (atan2 v1_y v1_x) 180)) (cbrt (* (atan2 v1_y v1_x) 180))) (cbrt (* (atan2 v1_y v1_x) 180))) PI))>
* [enter]simplify:  Simplifying (* (cbrt (* (atan2 v1_y v1_x) 180)) (cbrt (* (atan2 v1_y v1_x) 180)))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (atan2 v1_y v1_x) 180)) (cbrt (* (atan2 v1_y v1_x) 180)))
* [exit]simplify:  Simplified to (* (cbrt (* (atan2 v1_y v1_x) 180)) (cbrt (* (atan2 v1_y v1_x) 180)))
* [enter]simplify:  Simplifying (cbrt (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* [exit]simplify:  Simplified to (cbrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (cbrt (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 5 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (cbrt (* (* (* (atan2 v1_y v1_x) 180) (* (atan2 v1_y v1_x) 180)) (* (atan2 v1_y v1_x) 180))) PI))>
* [enter]simplify:  Simplifying (* (* (* (atan2 v1_y v1_x) 180) (* (atan2 v1_y v1_x) 180)) (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (57 enodes)
* * [misc]simplify:  iters left: 2 (87 enodes)
* * [misc]simplify:  iters left: 1 (90 enodes)
* [exit]simplify:  Simplified to (pow (* (atan2 v1_y v1_x) 180) 3)
* [exit]simplify:  Simplified to (pow (* (atan2 v1_y v1_x) 180) 3)
* * * * [misc]progress:  [ 6 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (sqrt (* (atan2 v1_y v1_x) 180)) (sqrt (* (atan2 v1_y v1_x) 180))) PI))>
* [enter]simplify:  Simplifying (sqrt (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [enter]simplify:  Simplifying (sqrt (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 7 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* (atan2 v1_y v1_x) 180)) PI))>
* * * * [misc]progress:  [ 8 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (atan2 v1_y v1_x)) 180)) PI))>
* [enter]simplify:  Simplifying (* (cbrt (atan2 v1_y v1_x)) 180)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) 180)
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) 180)
* * * * [misc]progress:  [ 9 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (sqrt (atan2 v1_y v1_x)) (* (sqrt (atan2 v1_y v1_x)) 180)) PI))>
* [enter]simplify:  Simplifying (* (sqrt (atan2 v1_y v1_x)) 180)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (7 enodes)
* [exit]simplify:  Simplified to (* (sqrt (atan2 v1_y v1_x)) 180)
* [exit]simplify:  Simplified to (* (sqrt (atan2 v1_y v1_x)) 180)
* * * * [misc]progress:  [ 10 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* (atan2 v1_y v1_x) 180)) PI))>
* [enter]simplify:  Simplifying (* (atan2 v1_y v1_x) 180)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (6 enodes)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* * * * [misc]progress:  [ 11 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 180 (atan2 v1_y v1_x)) PI))>
* * * * [misc]progress:  [ 12 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (/ (* (atan2 v1_y v1_x) 180) PI) 1))>
* * * * [misc]progress:  [ 13 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (log (/ (* (atan2 v1_y v1_x) 180) PI))))>
* [enter]simplify:  Simplifying (log (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (22 enodes)
* * [misc]simplify:  iters left: 3 (38 enodes)
* * [misc]simplify:  iters left: 2 (50 enodes)
* * [misc]simplify:  iters left: 1 (57 enodes)
* [exit]simplify:  Simplified to (log (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (log (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 14 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (log (exp (/ (* (atan2 v1_y v1_x) 180) PI))))>
* [enter]simplify:  Simplifying (exp (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* * [misc]simplify:  iters left: 2 (20 enodes)
* * [misc]simplify:  iters left: 1 (21 enodes)
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 15 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (/ (* (atan2 v1_y v1_x) 180) PI)) (cbrt (/ (* (atan2 v1_y v1_x) 180) PI))) (cbrt (/ (* (atan2 v1_y v1_x) 180) PI))))>
* [enter]simplify:  Simplifying (* (cbrt (/ (* (atan2 v1_y v1_x) 180) PI)) (cbrt (/ (* (atan2 v1_y v1_x) 180) PI)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (20 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))) (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (* (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))) (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (cbrt (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* * [misc]simplify:  iters left: 2 (18 enodes)
* * [misc]simplify:  iters left: 1 (19 enodes)
* [exit]simplify:  Simplified to (cbrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (cbrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 16 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (/ (* (atan2 v1_y v1_x) 180) PI) (/ (* (atan2 v1_y v1_x) 180) PI)) (/ (* (atan2 v1_y v1_x) 180) PI))))>
* [enter]simplify:  Simplifying (* (* (/ (* (atan2 v1_y v1_x) 180) PI) (/ (* (atan2 v1_y v1_x) 180) PI)) (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (58 enodes)
* * [misc]simplify:  iters left: 3 (186 enodes)
* [exit]simplify:  Simplified to (pow (* (/ 180 PI) (atan2 v1_y v1_x)) 3)
* [exit]simplify:  Simplified to (pow (* (/ 180 PI) (atan2 v1_y v1_x)) 3)
* * * * [misc]progress:  [ 17 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (/ (* (atan2 v1_y v1_x) 180) PI)) (sqrt (/ (* (atan2 v1_y v1_x) 180) PI))))>
* [enter]simplify:  Simplifying (sqrt (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* * [misc]simplify:  iters left: 2 (18 enodes)
* * [misc]simplify:  iters left: 1 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (sqrt (/ (* (atan2 v1_y v1_x) 180) PI))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* * [misc]simplify:  iters left: 2 (18 enodes)
* * [misc]simplify:  iters left: 1 (19 enodes)
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 18 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (- (* (atan2 v1_y v1_x) 180)) (- PI)))>
* [enter]simplify:  Simplifying (- (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* [exit]simplify:  Simplified to (* (- 180) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (* (- 180) (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (- PI)
* * [misc]simplify:  iters left: 2 (2 enodes)
* [exit]simplify:  Simplified to (- PI)
* [exit]simplify:  Simplified to (- PI)
* * * * [misc]progress:  [ 19 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (/ (* (atan2 v1_y v1_x) 180) PI)))>
* * * * [misc]progress:  [ 20 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (atan2 v1_y v1_x) 180) (/ 1 PI)))>
* [enter]simplify:  Simplifying (/ 1 PI)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 PI)
* [exit]simplify:  Simplified to (/ 1 PI)
* * * * [misc]progress:  [ 21 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ 1 (/ PI (* (atan2 v1_y v1_x) 180))))>
* [enter]simplify:  Simplifying (/ PI (* (atan2 v1_y v1_x) 180))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ PI (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (/ PI (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 22 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>
* [enter]simplify:  Simplifying (/ PI 180)
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (/ PI 180)
* [exit]simplify:  Simplified to (/ PI 180)
* * * * [misc]progress:  [ 23 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (pow (atan2 v1_y v1_x) 1) 180) PI))>
* * * * [misc]progress:  [ 24 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (exp (log (atan2 v1_y v1_x))) 180) PI))>
* [enter]simplify:  Simplifying (log (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 25 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (log (exp (atan2 v1_y v1_x))) 180) PI))>
* [enter]simplify:  Simplifying (exp (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 26 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (cbrt (atan2 v1_y v1_x))) 180) PI))>
* [enter]simplify:  Simplifying (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (cbrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 27 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (cbrt (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))) 180) PI))>
* [enter]simplify:  Simplifying (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* * * * [misc]progress:  [ 28 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* (sqrt (atan2 v1_y v1_x)) (sqrt (atan2 v1_y v1_x))) 180) PI))>
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 29 / 38 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* 1 (atan2 v1_y v1_x)) 180) PI))>
* * * * [misc]progress:  [ 30 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* 180 (atan2 v1_y v1_x)) PI))>
* [enter]simplify:  Simplifying (/ (* 180 (atan2 v1_y v1_x)) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 31 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* 180 (atan2 v1_y v1_x)) PI))>
* [enter]simplify:  Simplifying (/ (* 180 (atan2 v1_y v1_x)) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 32 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* 180 (atan2 v1_y v1_x)) PI))>
* [enter]simplify:  Simplifying (/ (* 180 (atan2 v1_y v1_x)) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 33 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 34 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 35 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 36 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* (atan2 v1_y v1_x) 180) PI))>
* [enter]simplify:  Simplifying (/ (* (atan2 v1_y v1_x) 180) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 37 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* (atan2 v1_y v1_x) 180) PI))>
* [enter]simplify:  Simplifying (/ (* (atan2 v1_y v1_x) 180) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 38 / 38 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (* (atan2 v1_y v1_x) 180) PI))>
* [enter]simplify:  Simplifying (/ (* (atan2 v1_y v1_x) 180) PI)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (* (/ 180 PI) (atan2 v1_y v1_x))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 2 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 2 ] rewriting at (2)
* * * * [misc]progress:  [ 2 / 2 ] rewriting at (2 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 2 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ PI 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ PI 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* 1/180 PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* 1/180 PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* 1/180 PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 v1_y v1_x) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) PI) into (/ (atan2 v1_y v1_x) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 v1_y v1_x) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 v1_y v1_x) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ PI 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ PI 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ PI 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ PI 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ PI 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ PI 180) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ PI 180) into (* 1/180 PI)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* 1/180 PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 180) (+ (* (* 1/180 PI) (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* 1/180 PI)) (+ (* (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))) (* 0 (/ 0 (* 1/180 PI))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* * * * [misc]progress:  [ 2 / 2 ] generating series at (2 1)
* [misc]approximate:  Taking taylor expansion of (atan2 v1_y v1_x) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) into (atan2 v1_y v1_x)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (/ (atan2 v1_y v1_x) (/ PI 180)) 1))>
* * * * [misc]progress:  [ 2 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (- (log (atan2 v1_y v1_x)) (log (/ PI 180)))))>
* [enter]simplify:  Simplifying (- (log (atan2 v1_y v1_x)) (log (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* * [misc]simplify:  iters left: 2 (25 enodes)
* * [misc]simplify:  iters left: 1 (34 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (log (/ PI 180)))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (log (/ PI 180)))
* * * * [misc]progress:  [ 3 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (log (/ (atan2 v1_y v1_x) (/ PI 180)))))>
* [enter]simplify:  Simplifying (log (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (23 enodes)
* * [misc]simplify:  iters left: 2 (32 enodes)
* * [misc]simplify:  iters left: 1 (41 enodes)
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 4 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (log (exp (/ (atan2 v1_y v1_x) (/ PI 180)))))>
* [enter]simplify:  Simplifying (exp (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 5 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ PI 180) (/ PI 180)) (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ PI 180) (/ PI 180)) (/ PI 180)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (82 enodes)
* * [misc]simplify:  iters left: 3 (253 enodes)
* [exit]simplify:  Simplified to (pow (* (atan2 v1_y v1_x) (/ 180 PI)) 3)
* [exit]simplify:  Simplified to (pow (* (atan2 v1_y v1_x) (/ 180 PI)) 3)
* * * * [misc]progress:  [ 6 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))) (cbrt (/ (atan2 v1_y v1_x) (/ PI 180)))) (cbrt (/ (atan2 v1_y v1_x) (/ PI 180)))))>
* [enter]simplify:  Simplifying (* (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))) (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))) (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))))
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))) (cbrt (/ (atan2 v1_y v1_x) (/ PI 180))))
* [enter]simplify:  Simplifying (cbrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 7 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (/ (atan2 v1_y v1_x) (/ PI 180)) (/ (atan2 v1_y v1_x) (/ PI 180))) (/ (atan2 v1_y v1_x) (/ PI 180)))))>
* [enter]simplify:  Simplifying (* (* (/ (atan2 v1_y v1_x) (/ PI 180)) (/ (atan2 v1_y v1_x) (/ PI 180))) (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (55 enodes)
* * [misc]simplify:  iters left: 3 (211 enodes)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ PI 180)) 3)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ PI 180)) 3)
* * * * [misc]progress:  [ 8 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (/ (atan2 v1_y v1_x) (/ PI 180))) (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))))>
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (13 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 9 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (- (atan2 v1_y v1_x)) (- (/ PI 180))))>
* [enter]simplify:  Simplifying (- (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (- (/ PI 180))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (- (/ PI 180))
* [exit]simplify:  Simplified to (- (/ PI 180))
* * * * [misc]progress:  [ 10 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ PI 180)) (cbrt (/ PI 180)))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ PI 180)) (cbrt (/ PI 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (29 enodes)
* * [misc]simplify:  iters left: 2 (32 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* * * * [misc]progress:  [ 11 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ PI 180))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180))) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180))) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* * * * [misc]progress:  [ 12 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1) (/ (cbrt (atan2 v1_y v1_x)) (/ PI 180))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (/ PI 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* * [misc]simplify:  iters left: 1 (15 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ PI 180))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ PI 180))
* * * * [misc]progress:  [ 13 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI) (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI)
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) PI) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) PI) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 14 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ PI 180)) (cbrt (/ PI 180)))) (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ PI 180)) (cbrt (/ PI 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ PI 180)))
* * * * [misc]progress:  [ 15 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ PI 180)))
* * * * [misc]progress:  [ 16 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (sqrt (atan2 v1_y v1_x)) 1) (/ (sqrt (atan2 v1_y v1_x)) (/ PI 180))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) 1)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (/ PI 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* * [misc]simplify:  iters left: 1 (15 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ PI 180))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ PI 180))
* * * * [misc]progress:  [ 17 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (sqrt (atan2 v1_y v1_x)) PI) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) PI)
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 18 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 (* (cbrt (/ PI 180)) (cbrt (/ PI 180)))) (/ (atan2 v1_y v1_x) (cbrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ 1 (* (cbrt (/ PI 180)) (cbrt (/ PI 180))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (cbrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (/ PI 180)))
* * * * [misc]progress:  [ 19 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 (sqrt (/ PI 180))) (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ PI 180)))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* * * * [misc]progress:  [ 20 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 1) (/ (atan2 v1_y v1_x) (/ PI 180))))>
* [enter]simplify:  Simplifying (/ 1 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ PI 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 21 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (/ 1 PI)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 PI)
* [exit]simplify:  Simplified to (/ 1 PI)
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ 1 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* * * * [misc]progress:  [ 22 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (/ (atan2 v1_y v1_x) (/ PI 180))))>
* * * * [misc]progress:  [ 23 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (atan2 v1_y v1_x) (/ 1 (/ PI 180))))>
* [enter]simplify:  Simplifying (/ 1 (/ PI 180))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to (/ 180 PI)
* [exit]simplify:  Simplified to (/ 180 PI)
* * * * [misc]progress:  [ 24 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ 1 (/ (/ PI 180) (atan2 v1_y v1_x))))>
* [enter]simplify:  Simplifying (/ (/ PI 180) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* [exit]simplify:  Simplified to (/ (/ PI 180) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (/ PI 180) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 25 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (/ (atan2 v1_y v1_x) (* (cbrt (/ PI 180)) (cbrt (/ PI 180)))) (cbrt (/ PI 180))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* (cbrt (/ PI 180)) (cbrt (/ PI 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (/ PI 180))) (cbrt (/ PI 180)))
* * * * [misc]progress:  [ 26 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (/ (atan2 v1_y v1_x) (sqrt (/ PI 180))) (sqrt (/ PI 180))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ PI 180)))
* * * * [misc]progress:  [ 27 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (/ (atan2 v1_y v1_x) 1) (/ PI 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) 1)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* * * * [misc]progress:  [ 28 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) PI)
* * [misc]simplify:  iters left: 3 (5 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 29 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (/ (/ PI 180) (cbrt (atan2 v1_y v1_x)))))>
* [enter]simplify:  Simplifying (/ (/ PI 180) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* [exit]simplify:  Simplified to (/ (/ PI 180) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (/ PI 180) (cbrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 30 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (sqrt (atan2 v1_y v1_x)) (/ (/ PI 180) (sqrt (atan2 v1_y v1_x)))))>
* [enter]simplify:  Simplifying (/ (/ PI 180) (sqrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* [exit]simplify:  Simplified to (/ (/ PI 180) (sqrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (/ PI 180) (sqrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 31 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ 1 (/ (/ PI 180) (atan2 v1_y v1_x))))>
* [enter]simplify:  Simplifying (/ (/ PI 180) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* [exit]simplify:  Simplified to (/ (/ PI 180) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (/ PI 180) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 32 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (atan2 v1_y v1_x) PI) 180))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) PI)
* * [misc]simplify:  iters left: 3 (5 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 33 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (pow (atan2 v1_y v1_x) 1) (/ PI 180)))>
* * * * [misc]progress:  [ 34 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (exp (log (atan2 v1_y v1_x))) (/ PI 180)))>
* [enter]simplify:  Simplifying (log (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 35 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (log (exp (atan2 v1_y v1_x))) (/ PI 180)))>
* [enter]simplify:  Simplifying (exp (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 36 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (cbrt (atan2 v1_y v1_x))) (/ PI 180)))>
* [enter]simplify:  Simplifying (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (cbrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 37 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (cbrt (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))) (/ PI 180)))>
* [enter]simplify:  Simplifying (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* * * * [misc]progress:  [ 38 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (sqrt (atan2 v1_y v1_x)) (sqrt (atan2 v1_y v1_x))) (/ PI 180)))>
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 39 / 45 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (atan2 v1_y v1_x)) (/ PI 180)))>
* * * * [misc]progress:  [ 40 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 41 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 42 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 43 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ PI 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 44 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ PI 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 45 / 45 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ PI 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (14 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 3 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 3 ] rewriting at (2 2)
* * * * [misc]progress:  [ 2 / 3 ] rewriting at (2)
* * * * [misc]progress:  [ 3 / 3 ] rewriting at (2 2 1)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 3 ] generating series at (2 2)
* [misc]approximate:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 v1_y v1_x)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 v1_y v1_x))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 v1_y v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 v1_y v1_x)) into (* 180 (atan2 v1_y v1_x))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 (/ 1 v1_y) (/ 1 v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 (/ 1 v1_y) (/ 1 v1_x))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x)))) into (* 180 (atan2 v1_y v1_x))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (atan2 (/ -1 v1_y) (/ -1 v1_x)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (atan2 (/ -1 v1_y) (/ -1 v1_x))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x))))) into (* 180 (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 2 / 3 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) 1/180) into (* 180 (atan2 v1_y v1_x))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (* 180 (atan2 v1_y v1_x))) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 v1_y v1_x) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) PI) into (/ (atan2 v1_y v1_x) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (* 180 (atan2 v1_y v1_x)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 v1_y v1_x) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (* 180 (atan2 v1_y v1_x))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 v1_y v1_x) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 v1_y v1_x)) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (* 180 (atan2 v1_y v1_x)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 v1_y v1_x) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) 1/180) into (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)) into (* 180 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (* 180 (atan2 (/ 1 v1_y) (/ 1 v1_x))))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) 1/180) into (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]taylor:  Taking taylor expansion of (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)) into (* 180 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 PI) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* 180 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) PI)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 1/180) (+ (* (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))) (/ 0 1/180)) (* 0 (/ 0 1/180)) (* 0 (/ 0 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (* 180 (atan2 (/ -1 v1_y) (/ -1 v1_x))))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* 180 (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) PI)) into (* 180 (/ (atan2 v1_y v1_x) PI))
* * * * [misc]progress:  [ 3 / 3 ] generating series at (2 2 1)
* [misc]approximate:  Taking taylor expansion of (atan2 v1_y v1_x) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) into (atan2 v1_y v1_x)
* [misc]approximate:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) into (atan2 v1_y v1_x)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 1)))>
* * * * [misc]progress:  [ 2 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (- (log (atan2 v1_y v1_x)) (log (/ 1 180))))))>
* [enter]simplify:  Simplifying (- (log (atan2 v1_y v1_x)) (log (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (25 enodes)
* * [misc]simplify:  iters left: 1 (37 enodes)
* [exit]simplify:  Simplified to (+ (log (atan2 v1_y v1_x)) (log 180))
* [exit]simplify:  Simplified to (+ (log (atan2 v1_y v1_x)) (log 180))
* * * * [misc]progress:  [ 3 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (log (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (log (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (26 enodes)
* * [misc]simplify:  iters left: 2 (36 enodes)
* * [misc]simplify:  iters left: 1 (39 enodes)
* [exit]simplify:  Simplified to (log (* 180 (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (log (* 180 (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 4 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (log (exp (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (exp (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (/ 1 180)))
* * * * [misc]progress:  [ 5 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (cbrt (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ 1 180) (/ 1 180)) (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ 1 180) (/ 1 180)) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (76 enodes)
* * [misc]simplify:  iters left: 3 (247 enodes)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* * * * [misc]progress:  [ 6 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))))
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))))
* [enter]simplify:  Simplifying (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* * * * [misc]progress:  [ 7 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (cbrt (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (57 enodes)
* * [misc]simplify:  iters left: 3 (212 enodes)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* * * * [misc]progress:  [ 8 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (sqrt (/ (atan2 v1_y v1_x) (/ 1 180))) (sqrt (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))
* * * * [misc]progress:  [ 9 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (- (atan2 v1_y v1_x)) (- (/ 1 180)))))>
* [enter]simplify:  Simplifying (- (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (- (/ 1 180))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ (- 1) 180)
* [exit]simplify:  Simplified to (/ (- 1) 180)
* * * * [misc]progress:  [ 10 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (31 enodes)
* * [misc]simplify:  iters left: 2 (34 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* * * * [misc]progress:  [ 11 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180)))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 12 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1) (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 13 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1) (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 14 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))) (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))
* * * * [misc]progress:  [ 15 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 16 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (sqrt (atan2 v1_y v1_x)) 1) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) 1)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 17 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (sqrt (atan2 v1_y v1_x)) 1) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) 1)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))
* * * * [misc]progress:  [ 18 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (cbrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (cbrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (/ 1 180)))
* * * * [misc]progress:  [ 19 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 20 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 1) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ 1 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ 1 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* * * * [misc]progress:  [ 21 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 1) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ 1 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (/ 1 180))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ 1 180))
* * * * [misc]progress:  [ 22 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* 1 (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* * * * [misc]progress:  [ 23 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (atan2 v1_y v1_x) (/ 1 (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ 1 (/ 1 180))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to 180
* [exit]simplify:  Simplified to 180
* * * * [misc]progress:  [ 24 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ 1 (/ (/ 1 180) (atan2 v1_y v1_x)))))>
* [enter]simplify:  Simplifying (/ (/ 1 180) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 180) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (/ 1 180) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 25 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (/ (atan2 v1_y v1_x) (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))) (cbrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (/ 1 180))) (cbrt (/ 1 180)))
* * * * [misc]progress:  [ 26 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 27 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (/ (atan2 v1_y v1_x) 1) (/ 1 180))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) 1)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* * * * [misc]progress:  [ 28 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (/ (atan2 v1_y v1_x) 1) (/ 1 180))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) 1)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* * * * [misc]progress:  [ 29 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (/ (/ 1 180) (cbrt (atan2 v1_y v1_x))))))>
* [enter]simplify:  Simplifying (/ (/ 1 180) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 180) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (/ 1 180) (cbrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 30 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) (/ (/ 1 180) (sqrt (atan2 v1_y v1_x))))))>
* [enter]simplify:  Simplifying (/ (/ 1 180) (sqrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (8 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 180) (sqrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (/ 1 180) (sqrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 31 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ 1 (/ (/ 1 180) (atan2 v1_y v1_x)))))>
* [enter]simplify:  Simplifying (/ (/ 1 180) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (11 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 180) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (/ 1 180) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 32 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (atan2 v1_y v1_x) 1) 180)))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) 1)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* * * * [misc]progress:  [ 33 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) 1))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 34 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) 1))>
* * * * [misc]progress:  [ 35 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (- (log (atan2 v1_y v1_x)) (log (/ 1 180))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (- (log (atan2 v1_y v1_x)) (log (/ 1 180))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (48 enodes)
* * [misc]simplify:  iters left: 3 (120 enodes)
* * [misc]simplify:  iters left: 2 (332 enodes)
* [exit]simplify:  Simplified to (+ (- (log 180) (log PI)) (log (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (+ (- (log 180) (log PI)) (log (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 36 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (log (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (log (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (44 enodes)
* * [misc]simplify:  iters left: 3 (102 enodes)
* * [misc]simplify:  iters left: 2 (255 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (- (log PI) (log 180)))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (- (log PI) (log 180)))
* * * * [misc]progress:  [ 37 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (log (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (log (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (60 enodes)
* * [misc]simplify:  iters left: 3 (186 enodes)
* * [misc]simplify:  iters left: 2 (455 enodes)
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (/ PI 180)))
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (/ PI 180)))
* * * * [misc]progress:  [ 38 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (log (exp (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (exp (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (44 enodes)
* * [misc]simplify:  iters left: 3 (134 enodes)
* * [misc]simplify:  iters left: 2 (247 enodes)
* * [misc]simplify:  iters left: 1 (419 enodes)
* [exit]simplify:  Simplified to (exp (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (exp (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 39 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ 1 180) (/ 1 180)) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (/ 1 180) (/ 1 180)) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (45 enodes)
* * [misc]simplify:  iters left: 4 (164 enodes)
* [exit]simplify:  Simplified to (* (* (/ (/ 1 PI) (* PI PI)) (/ (atan2 v1_y v1_x) (/ 1 180))) (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))))
* [exit]simplify:  Simplified to (* (* (/ (/ 1 PI) (* PI PI)) (/ (atan2 v1_y v1_x) (/ 1 180))) (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * * * [misc]progress:  [ 40 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (37 enodes)
* * [misc]simplify:  iters left: 4 (131 enodes)
* [exit]simplify:  Simplified to (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (/ 1 PI) (* PI PI))) (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))))
* [exit]simplify:  Simplified to (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (/ 1 PI) (* PI PI))) (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * * * [misc]progress:  [ 41 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))) (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))) (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))) (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (132 enodes)
* * [misc]simplify:  iters left: 2 (243 enodes)
* * [misc]simplify:  iters left: 1 (411 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))) (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (* (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))) (cbrt (* (/ 180 PI) (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (cbrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (131 enodes)
* * [misc]simplify:  iters left: 2 (247 enodes)
* * [misc]simplify:  iters left: 1 (447 enodes)
* [exit]simplify:  Simplified to (cbrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (cbrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 42 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (102 enodes)
* [exit]simplify:  Simplified to (pow (/ (* 180 (atan2 v1_y v1_x)) (* PI 1)) 3)
* [exit]simplify:  Simplified to (pow (/ (* 180 (atan2 v1_y v1_x)) (* PI 1)) 3)
* * * * [misc]progress:  [ 43 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))) (sqrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))))>
* [enter]simplify:  Simplifying (sqrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (131 enodes)
* * [misc]simplify:  iters left: 2 (247 enodes)
* * [misc]simplify:  iters left: 1 (447 enodes)
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (sqrt (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (131 enodes)
* * [misc]simplify:  iters left: 2 (247 enodes)
* * [misc]simplify:  iters left: 1 (447 enodes)
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (sqrt (* (/ 180 PI) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 44 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (atan2 v1_y v1_x)) (* PI (/ 1 180))))>
* [enter]simplify:  Simplifying (* 1 (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* * [misc]simplify:  iters left: 1 (10 enodes)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [enter]simplify:  Simplifying (* PI (/ 1 180))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* [exit]simplify:  Simplified to (/ PI 180)
* [exit]simplify:  Simplified to (/ PI 180)
* * * * [misc]progress:  [ 45 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* * * * [misc]progress:  [ 46 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (57 enodes)
* * [misc]simplify:  iters left: 2 (85 enodes)
* * [misc]simplify:  iters left: 1 (90 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (/ PI (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))))
* [exit]simplify:  Simplified to (/ (cbrt (/ (atan2 v1_y v1_x) (/ 1 180))) (/ PI (cbrt (/ (atan2 v1_y v1_x) (/ 1 180)))))
* * * * [misc]progress:  [ 47 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))) (sqrt (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (sqrt (/ (atan2 v1_y v1_x) (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (40 enodes)
* * [misc]simplify:  iters left: 1 (47 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ (atan2 v1_y v1_x) (/ 1 180))) PI)
* [exit]simplify:  Simplified to (/ (sqrt (/ (atan2 v1_y v1_x) (/ 1 180))) PI)
* * * * [misc]progress:  [ 48 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (245 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (/ (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) PI))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) (/ (/ (cbrt (atan2 v1_y v1_x)) (cbrt (/ 1 180))) PI))
* * * * [misc]progress:  [ 49 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (222 enodes)
* * [misc]simplify:  iters left: 1 (494 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) PI) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) PI) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 50 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)) (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (39 enodes)
* * [misc]simplify:  iters left: 3 (103 enodes)
* * [misc]simplify:  iters left: 2 (194 enodes)
* * [misc]simplify:  iters left: 1 (378 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI)
* * * * [misc]progress:  [ 51 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)) (/ (cbrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (39 enodes)
* * [misc]simplify:  iters left: 3 (103 enodes)
* * [misc]simplify:  iters left: 2 (194 enodes)
* * [misc]simplify:  iters left: 1 (378 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) PI)
* * * * [misc]progress:  [ 52 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (sqrt (atan2 v1_y v1_x)) (cbrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (109 enodes)
* * [misc]simplify:  iters left: 2 (253 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) PI) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) PI) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 53 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (91 enodes)
* * [misc]simplify:  iters left: 1 (155 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) PI) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) PI) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 54 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) 1)) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) 1))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (74 enodes)
* * [misc]simplify:  iters left: 1 (92 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* * * * [misc]progress:  [ 55 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) 1)) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (sqrt (atan2 v1_y v1_x)) 1))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (53 enodes)
* * [misc]simplify:  iters left: 2 (74 enodes)
* * [misc]simplify:  iters left: 1 (92 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) PI)
* * * * [misc]progress:  [ 56 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ 1 (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (cbrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ 1 (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (81 enodes)
* * [misc]simplify:  iters left: 2 (133 enodes)
* * [misc]simplify:  iters left: 1 (191 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 PI) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 PI) (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 57 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 PI) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ 1 PI) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 58 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ 1 1)) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ 1 1))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* [exit]simplify:  Simplified to (/ 1 PI)
* [exit]simplify:  Simplified to (/ 1 PI)
* * * * [misc]progress:  [ 59 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ 1 1)) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ 1 1))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (10 enodes)
* [exit]simplify:  Simplified to (/ 1 PI)
* [exit]simplify:  Simplified to (/ 1 PI)
* * * * [misc]progress:  [ 60 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) 1) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) 1)
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* [exit]simplify:  Simplified to (/ 1 PI)
* [exit]simplify:  Simplified to (/ 1 PI)
* * * * [misc]progress:  [ 61 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (atan2 v1_y v1_x)) (/ 1 (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (25 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 62 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ (atan2 v1_y v1_x) 1)) 180))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) 1))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (27 enodes)
* * [misc]simplify:  iters left: 2 (52 enodes)
* * [misc]simplify:  iters left: 1 (73 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 63 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (/ 1 PI)) (cbrt (/ 1 PI))) (* (cbrt (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (cbrt (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (66 enodes)
* * [misc]simplify:  iters left: 1 (80 enodes)
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (/ 1 180)) (cbrt (/ 1 PI)))
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (/ 1 180)) (cbrt (/ 1 PI)))
* * * * [misc]progress:  [ 64 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (/ 1 PI)) (* (sqrt (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (sqrt (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (54 enodes)
* * [misc]simplify:  iters left: 2 (66 enodes)
* * [misc]simplify:  iters left: 1 (80 enodes)
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (/ 1 180)) (sqrt (/ 1 PI)))
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (/ 1 180)) (sqrt (/ 1 PI)))
* * * * [misc]progress:  [ 65 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 66 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 67 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (/ 1 PI) (atan2 v1_y v1_x)) (/ 1 180)))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (25 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 68 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (/ (atan2 v1_y v1_x) (/ 1 180))) PI))>
* [enter]simplify:  Simplifying (* 1 (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (62 enodes)
* * [misc]simplify:  iters left: 1 (72 enodes)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* * * * [misc]progress:  [ 69 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ 1 PI)))>
* * * * [misc]progress:  [ 70 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (pow (atan2 v1_y v1_x) 1) (/ 1 180))))>
* * * * [misc]progress:  [ 71 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (exp (log (atan2 v1_y v1_x))) (/ 1 180))))>
* [enter]simplify:  Simplifying (log (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (log (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 72 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (log (exp (atan2 v1_y v1_x))) (/ 1 180))))>
* [enter]simplify:  Simplifying (exp (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (exp (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 73 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (cbrt (atan2 v1_y v1_x))) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 4 (5 enodes)
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (cbrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (cbrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 74 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (cbrt (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* [exit]simplify:  Simplified to (pow (atan2 v1_y v1_x) 3)
* * * * [misc]progress:  [ 75 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* (sqrt (atan2 v1_y v1_x)) (sqrt (atan2 v1_y v1_x))) (/ 1 180))))>
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (sqrt (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 2 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (sqrt (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 76 / 85 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* 1 (atan2 v1_y v1_x)) (/ 1 180))))>
* * * * [misc]progress:  [ 77 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* 180 (atan2 v1_y v1_x))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* 180 (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (32 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (123 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 78 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* 180 (atan2 v1_y v1_x))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* 180 (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (32 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (123 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 79 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* 180 (atan2 v1_y v1_x))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* 180 (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (32 enodes)
* * [misc]simplify:  iters left: 2 (68 enodes)
* * [misc]simplify:  iters left: 1 (123 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 80 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 81 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 82 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* 180 (/ (atan2 v1_y v1_x) PI)))>
* [enter]simplify:  Simplifying (* 180 (/ (atan2 v1_y v1_x) PI))
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 83 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 84 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * * [misc]progress:  [ 85 / 85 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (130 enodes)
* * [misc]simplify:  iters left: 2 (241 enodes)
* * [misc]simplify:  iters left: 1 (420 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (/ PI 180))
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 4 / 4
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2 2 1)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 2)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 2 2)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2)
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2 2 1)
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 2)
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 v1_y v1_x) (sqrt 1/180))) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))) (* 0 (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))) (* 0 (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) (pow (sqrt 1/180) 2)) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (pow (sqrt 1/180) 2)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)) (/ 0 (pow (sqrt 1/180) 2))) (* 0 (/ 0 (pow (sqrt 1/180) 2))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) (pow (sqrt 1/180) 2)) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 2 2)
* [misc]approximate:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]approximate:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_y
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (sqrt 1/180)) into (/ (atan2 v1_y v1_x) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 v1_y v1_x) (sqrt 1/180))) into (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 v1_y v1_x) in v1_x
* [misc]backup-simplify:  Simplify (atan2 v1_y v1_x) into (atan2 v1_y v1_x)
* [misc]taylor:  Taking taylor expansion of (* PI (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (* PI (pow (sqrt 1/180) 2)) into (* PI (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (* 0 (pow (sqrt 1/180) 2))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (+ (* 0 0) (* 0 (pow (sqrt 1/180) 2)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))) (* 0 (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 v1_y v1_x) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (sqrt 1/180)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 v1_y) (/ 1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 v1_y) (/ 1 v1_x)) into (atan2 (/ 1 v1_y) (/ 1 v1_x))
* [misc]taylor:  Taking taylor expansion of (* PI (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (* PI (pow (sqrt 1/180) 2)) into (* PI (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (* 0 (pow (sqrt 1/180) 2))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (+ (* 0 0) (* 0 (pow (sqrt 1/180) 2)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))) (* 0 (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (sqrt 1/180)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ 1 v1_y) (/ 1 v1_x)) (pow (sqrt 1/180) 2)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ 1 (/ 1 v1_y)) (/ 1 (/ 1 v1_x))) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* [misc]approximate:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))))) in (v1_y v1_x) around 0
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_x
* [misc]taylor:  Taking taylor expansion of 180 in v1_x
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 PI) in v1_y
* [misc]taylor:  Taking taylor expansion of PI in v1_y
* [misc]backup-simplify:  Simplify PI into PI
* [misc]backup-simplify:  Simplify (/ 1 PI) into (/ 1 PI)
* [misc]taylor:  Taking taylor expansion of (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180)))) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ 1 (sqrt 1/180)) into (/ 1 (sqrt 1/180))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) (sqrt (/ 1 180))) in v1_y
* [misc]taylor:  Taking taylor expansion of (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) in v1_y
* [misc]backup-simplify:  Simplify (atan2 (/ 1 (- v1_y)) (/ 1 (- v1_x))) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ 1 180)) in v1_y
* [misc]taylor:  Taking taylor expansion of (/ 1 180) in v1_y
* [misc]taylor:  Taking taylor expansion of 180 in v1_y
* [misc]backup-simplify:  Simplify 180 into 180
* [misc]backup-simplify:  Simplify (/ 1 180) into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* (/ 1 (sqrt 1/180)) (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (* (/ 1 PI) (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]taylor:  Taking taylor expansion of (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2))) in v1_x
* [misc]taylor:  Taking taylor expansion of (atan2 (/ -1 v1_y) (/ -1 v1_x)) in v1_x
* [misc]backup-simplify:  Simplify (atan2 (/ -1 v1_y) (/ -1 v1_x)) into (atan2 (/ -1 v1_y) (/ -1 v1_x))
* [misc]taylor:  Taking taylor expansion of (* PI (pow (sqrt 1/180) 2)) in v1_x
* [misc]taylor:  Taking taylor expansion of PI in v1_x
* [misc]backup-simplify:  Simplify PI into PI
* [misc]taylor:  Taking taylor expansion of (pow (sqrt 1/180) 2) in v1_x
* [misc]taylor:  Taking taylor expansion of (exp (* 2 (log (sqrt 1/180)))) in v1_x
* [misc]taylor:  Taking taylor expansion of (* 2 (log (sqrt 1/180))) in v1_x
* [misc]taylor:  Taking taylor expansion of 2 in v1_x
* [misc]backup-simplify:  Simplify 2 into 2
* [misc]taylor:  Taking taylor expansion of (log (sqrt 1/180)) in v1_x
* [misc]taylor:  Taking taylor expansion of (sqrt 1/180) in v1_x
* [misc]taylor:  Taking taylor expansion of 1/180 in v1_x
* [misc]backup-simplify:  Simplify 1/180 into 1/180
* [misc]backup-simplify:  Simplify (sqrt 1/180) into (sqrt 1/180)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (log (sqrt 1/180)) into (log (sqrt 1/180))
* [misc]backup-simplify:  Simplify (* 2 (log (sqrt 1/180))) into (* 2 (log (sqrt 1/180)))
* [misc]backup-simplify:  Simplify (exp (* 2 (log (sqrt 1/180)))) into (pow (sqrt 1/180) 2)
* [misc]backup-simplify:  Simplify (* PI (pow (sqrt 1/180) 2)) into (* PI (pow (sqrt 1/180) 2))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2)))
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (+ (* 1 (/ (* (pow (* 1 0) 1)) (pow (sqrt 1/180) 1)))) 1) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (* 0 (log (sqrt 1/180)))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (* 0 (pow (sqrt 1/180) 2))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (pow 0 2) (+)) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (/ (+ (* -1 (/ (* (pow (* 1 0) 2)) (pow (sqrt 1/180) 2))) (* 1 (/ (* 1 (pow (* 2 0) 1)) (pow (sqrt 1/180) 1)))) 2) into 0
* [misc]backup-simplify:  Simplify (+ (* 2 0) (+ (* 0 0) (* 0 (log (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (* (exp (* 2 (log (sqrt 1/180)))) (+ (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 0
* [misc]backup-simplify:  Simplify (+ (* PI 0) (+ (* 0 0) (* 0 (pow (sqrt 1/180) 2)))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (* PI (pow (sqrt 1/180) 2))) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (* PI (pow (sqrt 1/180) 2))) (/ 0 (* PI (pow (sqrt 1/180) 2)))) (* 0 (/ 0 (* PI (pow (sqrt 1/180) 2)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (/ 0 (sqrt 1/180)) (+ (* (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1/180 (/ 0 180)) (* 0 (/ 0 180)) (* 0 (/ 0 180)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt 1/180))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 (sqrt 1/180)) (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))) (* 0 (/ 0 (sqrt 1/180))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 (sqrt 1/180)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (sqrt 1/180)))))) into 0
* [misc]backup-simplify:  Simplify (- (+ (* (/ 1 PI) (/ 0 PI)) (* 0 (/ 0 PI)) (* 0 (/ 0 PI)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (/ 1 PI) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (/ (atan2 (/ -1 v1_y) (/ -1 v1_x)) (pow (sqrt 1/180) 2)))))) into 0
* [misc]taylor:  Taking taylor expansion of 0 in v1_x
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (atan2 (/ -1 (/ 1 (- v1_y))) (/ -1 (/ 1 (- v1_x)))) (* PI (pow (sqrt 1/180) 2))) into (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (pow (sqrt (/ 1 180)) -1) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* * * * [misc]progress:  [ 2 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (pow (/ 1 180) (- 1/2)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (- 1/2)
* * [misc]simplify:  iters left: 2 (2 enodes)
* [exit]simplify:  Simplified to (- 1/2)
* [exit]simplify:  Simplified to (- 1/2)
* * * * [misc]progress:  [ 3 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (pow (sqrt (/ 1 180)) (- 1)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (- 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (- 1)
* [exit]simplify:  Simplified to (- 1)
* * * * [misc]progress:  [ 4 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (pow (/ 1 (sqrt (/ 1 180))) 1) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* * * * [misc]progress:  [ 5 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (exp (- (log (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (- (log (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (- (log (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (- (log (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 6 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (exp (log (/ 1 (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (log (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* * [misc]simplify:  iters left: 2 (30 enodes)
* * [misc]simplify:  iters left: 1 (72 enodes)
* [exit]simplify:  Simplified to (- (log (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (- (log (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 7 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (log (exp (/ 1 (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (exp (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (exp (/ 1 (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (exp (/ 1 (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 8 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (* (cbrt (/ 1 (sqrt (/ 1 180)))) (cbrt (/ 1 (sqrt (/ 1 180))))) (cbrt (/ 1 (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (cbrt (/ 1 (sqrt (/ 1 180)))) (cbrt (/ 1 (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ 1 (sqrt (/ 1 180)))) (cbrt (/ 1 (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (* (cbrt (/ 1 (sqrt (/ 1 180)))) (cbrt (/ 1 (sqrt (/ 1 180)))))
* [enter]simplify:  Simplifying (cbrt (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (cbrt (/ 1 (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (cbrt (/ 1 (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 9 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (cbrt (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (26 enodes)
* * [misc]simplify:  iters left: 3 (43 enodes)
* * [misc]simplify:  iters left: 2 (73 enodes)
* * [misc]simplify:  iters left: 1 (112 enodes)
* [exit]simplify:  Simplified to (/ 180 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 180 (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 10 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (sqrt (/ 1 (sqrt (/ 1 180)))) (sqrt (/ 1 (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (sqrt (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (sqrt (/ 1 (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (sqrt (/ 1 (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (sqrt (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (sqrt (/ 1 (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (sqrt (/ 1 (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 11 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (- 1) (- (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (- 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to (- 1)
* [exit]simplify:  Simplified to (- 1)
* [enter]simplify:  Simplifying (- (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (- (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (- (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 12 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* 1 (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* * * * [misc]progress:  [ 13 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* 1 (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 14 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (/ (sqrt (/ 1 180)) 1)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (sqrt (/ 1 180)) 1)
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) 1)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) 1)
* * * * [misc]progress:  [ 15 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))) (cbrt (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 16 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (sqrt (cbrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* [exit]simplify:  Simplified to (/ 1 (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (fabs (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 17 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (sqrt (sqrt (/ 1 180)))) (sqrt (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 18 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt 1))
* * [misc]simplify:  iters left: 3 (3 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* * * * [misc]progress:  [ 19 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt 1))
* * [misc]simplify:  iters left: 3 (3 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* * * * [misc]progress:  [ 20 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 (sqrt (sqrt (/ 1 180)))) (sqrt (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 21 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (/ 1 1) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* * * * [misc]progress:  [ 22 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt 1)) (sqrt 180)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt 1))
* * [misc]simplify:  iters left: 3 (3 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* * * * [misc]progress:  [ 23 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (pow (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) 1)))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (46 enodes)
* * [misc]simplify:  iters left: 2 (66 enodes)
* * [misc]simplify:  iters left: 1 (100 enodes)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* * * * [misc]progress:  [ 24 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (pow (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) 1)))>
* * * * [misc]progress:  [ 25 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (+ (- (log (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (- (log (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (24 enodes)
* * [misc]simplify:  iters left: 3 (34 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (105 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 26 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (+ (- (log (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (- (log (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (34 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (94 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 27 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (+ (log (/ 1 (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (88 enodes)
* * [misc]simplify:  iters left: 2 (304 enodes)
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (log (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (log (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 28 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (+ (log (/ 1 (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (67 enodes)
* * [misc]simplify:  iters left: 2 (208 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (+ (log (sqrt (/ 1 180))) (log (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 29 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (exp (log (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (log (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (82 enodes)
* * [misc]simplify:  iters left: 2 (155 enodes)
* * [misc]simplify:  iters left: 1 (264 enodes)
* [exit]simplify:  Simplified to (log (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (log (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 30 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (log (exp (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (exp (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (49 enodes)
* * [misc]simplify:  iters left: 2 (73 enodes)
* * [misc]simplify:  iters left: 1 (112 enodes)
* [exit]simplify:  Simplified to (exp (* 180 (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (exp (* 180 (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 31 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (cbrt (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (39 enodes)
* * [misc]simplify:  iters left: 4 (145 enodes)
* [exit]simplify:  Simplified to (* (/ (/ 1 (/ 1 180)) (/ 1 180)) (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (/ (/ 1 180) (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (* (/ (/ 1 (/ 1 180)) (/ 1 180)) (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (/ (/ 1 180) (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 32 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (cbrt (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (35 enodes)
* * [misc]simplify:  iters left: 4 (108 enodes)
* * [misc]simplify:  iters left: 3 (327 enodes)
* [exit]simplify:  Simplified to (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (* (* (/ (atan2 v1_y v1_x) (/ 1 180)) (/ (atan2 v1_y v1_x) (/ 1 180))) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * * * [misc]progress:  [ 33 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (48 enodes)
* * [misc]simplify:  iters left: 2 (67 enodes)
* * [misc]simplify:  iters left: 1 (102 enodes)
* [exit]simplify:  Simplified to (* (cbrt (* 180 (atan2 v1_y v1_x))) (cbrt (* 180 (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (* (cbrt (* 180 (atan2 v1_y v1_x))) (cbrt (* 180 (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (cbrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (70 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (cbrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (cbrt (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 34 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (cbrt (* (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (94 enodes)
* * [misc]simplify:  iters left: 3 (299 enodes)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* [exit]simplify:  Simplified to (pow (/ (atan2 v1_y v1_x) (/ 1 180)) 3)
* * * * [misc]progress:  [ 35 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (sqrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (sqrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (sqrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (70 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [enter]simplify:  Simplifying (sqrt (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (47 enodes)
* * [misc]simplify:  iters left: 2 (70 enodes)
* * [misc]simplify:  iters left: 1 (109 enodes)
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* [exit]simplify:  Simplified to (sqrt (* (atan2 v1_y v1_x) 180))
* * * * [misc]progress:  [ 36 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* 1 (atan2 v1_y v1_x)) (* (sqrt (/ 1 180)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* 1 (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* * [misc]simplify:  iters left: 1 (10 enodes)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [enter]simplify:  Simplifying (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 180)
* [exit]simplify:  Simplified to (/ 1 180)
* * * * [misc]progress:  [ 37 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* 1 (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* * * * [misc]progress:  [ 38 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (50 enodes)
* * [misc]simplify:  iters left: 2 (78 enodes)
* * [misc]simplify:  iters left: 1 (83 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 39 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (29 enodes)
* * [misc]simplify:  iters left: 2 (33 enodes)
* * [misc]simplify:  iters left: 1 (40 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 40 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (246 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))) (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))) (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 41 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (45 enodes)
* * [misc]simplify:  iters left: 3 (109 enodes)
* * [misc]simplify:  iters left: 2 (239 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (* (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x))) (fabs (cbrt (/ 1 180)))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (* (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x))) (fabs (cbrt (/ 1 180)))))
* * * * [misc]progress:  [ 42 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (234 enodes)
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 43 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (234 enodes)
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt 1) (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt 1) (cbrt (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 44 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1)))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (234 enodes)
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt 1) (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt 1) (cbrt (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 45 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (42 enodes)
* * [misc]simplify:  iters left: 3 (106 enodes)
* * [misc]simplify:  iters left: 2 (234 enodes)
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (/ (sqrt (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 46 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (105 enodes)
* * [misc]simplify:  iters left: 2 (256 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (cbrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 47 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))) (/ (sqrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (43 enodes)
* * [misc]simplify:  iters left: 3 (109 enodes)
* * [misc]simplify:  iters left: 2 (253 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 48 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (34 enodes)
* * [misc]simplify:  iters left: 3 (59 enodes)
* * [misc]simplify:  iters left: 2 (94 enodes)
* * [misc]simplify:  iters left: 1 (160 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (fabs (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 49 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (90 enodes)
* * [misc]simplify:  iters left: 1 (155 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 50 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (90 enodes)
* * [misc]simplify:  iters left: 1 (155 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt 1))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt 1))
* * * * [misc]progress:  [ 51 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (90 enodes)
* * [misc]simplify:  iters left: 1 (155 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt 1))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt 1))
* * * * [misc]progress:  [ 52 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (31 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (90 enodes)
* * [misc]simplify:  iters left: 1 (155 enodes)
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 53 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) 1)) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) 1))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (55 enodes)
* * [misc]simplify:  iters left: 2 (81 enodes)
* * [misc]simplify:  iters left: 1 (131 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 54 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))) (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (41 enodes)
* * [misc]simplify:  iters left: 3 (80 enodes)
* * [misc]simplify:  iters left: 2 (130 enodes)
* * [misc]simplify:  iters left: 1 (187 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 55 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))) (/ (atan2 v1_y v1_x) (sqrt (cbrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (45 enodes)
* * [misc]simplify:  iters left: 2 (62 enodes)
* * [misc]simplify:  iters left: 1 (80 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (fabs (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 56 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 57 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt 1))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt 1)))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 58 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt 1))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt 1)))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt 1)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 59 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 (sqrt (/ 1 180))) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 60 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 1)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ 1 1))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 61 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) 1) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) 1)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 62 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x)) (/ 1 (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (27 enodes)
* * [misc]simplify:  iters left: 2 (31 enodes)
* * [misc]simplify:  iters left: 1 (38 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 63 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1))) (sqrt 180))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1)))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (30 enodes)
* * [misc]simplify:  iters left: 3 (55 enodes)
* * [misc]simplify:  iters left: 2 (89 enodes)
* * [misc]simplify:  iters left: 1 (146 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (sqrt 1)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (sqrt 1)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 64 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (* (cbrt (/ 1 (sqrt (/ 1 180)))) (cbrt (/ 1 (sqrt (/ 1 180))))) (* (cbrt (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (cbrt (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (24 enodes)
* * [misc]simplify:  iters left: 1 (25 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (/ 1 (sqrt (/ 1 180)))) (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (cbrt (/ 1 (sqrt (/ 1 180)))) (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 65 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (sqrt (/ 1 (sqrt (/ 1 180)))) (* (sqrt (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (sqrt (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (16 enodes)
* * [misc]simplify:  iters left: 4 (20 enodes)
* * [misc]simplify:  iters left: 3 (22 enodes)
* * [misc]simplify:  iters left: 2 (24 enodes)
* * [misc]simplify:  iters left: 1 (25 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 (sqrt (/ 1 180)))) (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 (sqrt (/ 1 180)))) (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 66 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* 1 (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (46 enodes)
* * [misc]simplify:  iters left: 2 (66 enodes)
* * [misc]simplify:  iters left: 1 (100 enodes)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* * * * [misc]progress:  [ 67 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* 1 (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (28 enodes)
* * [misc]simplify:  iters left: 3 (46 enodes)
* * [misc]simplify:  iters left: 2 (66 enodes)
* * [misc]simplify:  iters left: 1 (100 enodes)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* [exit]simplify:  Simplified to (* (atan2 v1_y v1_x) 180)
* * * * [misc]progress:  [ 68 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt 1)) (* (sqrt 180) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (sqrt 180) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (19 enodes)
* * [misc]simplify:  iters left: 3 (21 enodes)
* * [misc]simplify:  iters left: 2 (23 enodes)
* * [misc]simplify:  iters left: 1 (24 enodes)
* [exit]simplify:  Simplified to (/ (* (sqrt 180) (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (* (sqrt 180) (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 69 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (27 enodes)
* * [misc]simplify:  iters left: 2 (31 enodes)
* * [misc]simplify:  iters left: 1 (38 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 70 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (/ (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (21 enodes)
* * [misc]simplify:  iters left: 3 (24 enodes)
* * [misc]simplify:  iters left: 2 (30 enodes)
* * [misc]simplify:  iters left: 1 (34 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 71 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180))))))>
* * * * [misc]progress:  [ 72 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (pow (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) 1))))>
* * * * [misc]progress:  [ 73 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (exp (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 74 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (exp (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 75 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (log (exp (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (exp (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (exp (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 76 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (cbrt (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (23 enodes)
* * [misc]simplify:  iters left: 4 (60 enodes)
* * [misc]simplify:  iters left: 3 (138 enodes)
* * [misc]simplify:  iters left: 2 (371 enodes)
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* (atan2 v1_y v1_x) (* (atan2 v1_y v1_x) 180)))
* [exit]simplify:  Simplified to (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* (atan2 v1_y v1_x) (* (atan2 v1_y v1_x) 180)))
* * * * [misc]progress:  [ 77 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* [enter]simplify:  Simplifying (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (cbrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 78 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (cbrt (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (19 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (101 enodes)
* * [misc]simplify:  iters left: 1 (145 enodes)
* [exit]simplify:  Simplified to (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (* (sqrt (/ 1 180)) (/ (/ 1 180) (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (* (sqrt (/ 1 180)) (/ (/ 1 180) (atan2 v1_y v1_x))))
* * * * [misc]progress:  [ 79 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (sqrt (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 80 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (- (atan2 v1_y v1_x)) (- (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (- (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (- (atan2 v1_y v1_x))
* [enter]simplify:  Simplifying (- (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (- (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (- (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 81 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (32 enodes)
* * [misc]simplify:  iters left: 2 (35 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180)))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 82 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (17 enodes)
* * [misc]simplify:  iters left: 4 (19 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (fabs (cbrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 83 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 84 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1)) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt 1)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt 1)) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 85 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1)) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt 1))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt 1)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (* (/ (cbrt (atan2 v1_y v1_x)) (sqrt 1)) (cbrt (atan2 v1_y v1_x)))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 86 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180)))) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (17 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 87 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1) (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) 1)
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (14 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (/ 1 (cbrt (atan2 v1_y v1_x))))
* [enter]simplify:  Simplifying (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (cbrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 88 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))) (/ (sqrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (cbrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 89 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (fabs (cbrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 90 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 91 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1)) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 92 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1)) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* * [misc]simplify:  iters left: 4 (7 enodes)
* * [misc]simplify:  iters left: 3 (9 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt 1))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 93 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180)))) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 94 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (sqrt (atan2 v1_y v1_x)) 1) (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) 1)
* * [misc]simplify:  iters left: 4 (6 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) 1)
* [enter]simplify:  Simplifying (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (sqrt (atan2 v1_y v1_x)) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 95 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ 1 (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ 1 (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 96 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (/ (atan2 v1_y v1_x) (sqrt (cbrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* [exit]simplify:  Simplified to (/ 1 (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (fabs (cbrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (cbrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 97 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (sqrt (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 98 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (sqrt 1)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt 1))
* * [misc]simplify:  iters left: 3 (3 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 99 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (sqrt 1)) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt 1))
* * [misc]simplify:  iters left: 3 (3 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [exit]simplify:  Simplified to (/ 1 (sqrt 1))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 100 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 (sqrt (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ 1 (sqrt (sqrt (/ 1 180))))
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 101 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ 1 1) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ 1 1)
* * [misc]simplify:  iters left: 2 (2 enodes)
* * [misc]simplify:  iters left: 1 (4 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 102 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* * * * [misc]progress:  [ 103 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (atan2 v1_y v1_x) (/ 1 (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ 1 (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ 1 (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 104 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ 1 (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))))))>
* [enter]simplify:  Simplifying (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 105 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180))))) (cbrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* (cbrt (sqrt (/ 1 180))) (cbrt (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (cbrt (sqrt (/ 1 180)))) (cbrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 106 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180))))) (sqrt (cbrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (* (cbrt (/ 1 180)) (cbrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (fabs (cbrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (fabs (cbrt (/ 1 180))))
* * * * [misc]progress:  [ 107 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180)))) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 108 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (sqrt 1)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt 1))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* * * * [misc]progress:  [ 109 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (sqrt 1)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt 1))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* * * * [misc]progress:  [ 110 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180)))) (sqrt (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (9 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (sqrt (/ 1 180))))
* * * * [misc]progress:  [ 111 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (/ (atan2 v1_y v1_x) 1) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) 1)
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) 1)
* * * * [misc]progress:  [ 112 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (* (cbrt (atan2 v1_y v1_x)) (cbrt (atan2 v1_y v1_x))) (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x)))))))>
* [enter]simplify:  Simplifying (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (cbrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 113 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (sqrt (atan2 v1_y v1_x)) (/ (sqrt (/ 1 180)) (sqrt (atan2 v1_y v1_x)))))))>
* [enter]simplify:  Simplifying (/ (sqrt (/ 1 180)) (sqrt (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (sqrt (atan2 v1_y v1_x)))
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (sqrt (atan2 v1_y v1_x)))
* * * * [misc]progress:  [ 114 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ 1 (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))))))>
* [enter]simplify:  Simplifying (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (10 enodes)
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (/ (sqrt (/ 1 180)) (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 115 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (* (/ (atan2 v1_y v1_x) (sqrt 1)) (sqrt 180)))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (sqrt 1))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt 1))
* * * * [misc]progress:  [ 116 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) 1))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 117 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) 1))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 118 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (pow (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) 1))>
* * * * [misc]progress:  [ 119 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (+ (- (log (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (+ (- (log (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (29 enodes)
* * [misc]simplify:  iters left: 4 (59 enodes)
* * [misc]simplify:  iters left: 3 (154 enodes)
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log (sqrt (/ 1 180))) (log PI)))
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log (sqrt (/ 1 180))) (log PI)))
* * * * [misc]progress:  [ 120 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (+ (- (log (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (+ (- (log (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (53 enodes)
* * [misc]simplify:  iters left: 3 (139 enodes)
* * [misc]simplify:  iters left: 2 (475 enodes)
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log PI) (log (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log PI) (log (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 121 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (+ (log (/ 1 (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (+ (log (/ 1 (sqrt (/ 1 180)))) (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (32 enodes)
* * [misc]simplify:  iters left: 4 (73 enodes)
* * [misc]simplify:  iters left: 3 (246 enodes)
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log PI) (log (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (- (- (log (atan2 v1_y v1_x)) (log (sqrt (/ 1 180)))) (+ (log PI) (log (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 122 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (+ (log (/ 1 (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (+ (log (/ 1 (sqrt (/ 1 180)))) (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (16 enodes)
* * [misc]simplify:  iters left: 5 (31 enodes)
* * [misc]simplify:  iters left: 4 (63 enodes)
* * [misc]simplify:  iters left: 3 (197 enodes)
* [exit]simplify:  Simplified to (- (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (+ (log (sqrt (/ 1 180))) (log PI)))
* [exit]simplify:  Simplified to (- (log (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (+ (log (sqrt (/ 1 180))) (log PI)))
* * * * [misc]progress:  [ 123 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (+ (log (/ 1 PI)) (log (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (+ (log (/ 1 PI)) (log (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (30 enodes)
* * [misc]simplify:  iters left: 4 (61 enodes)
* * [misc]simplify:  iters left: 3 (139 enodes)
* * [misc]simplify:  iters left: 2 (366 enodes)
* [exit]simplify:  Simplified to (- (log (* 180 (atan2 v1_y v1_x))) (log PI))
* [exit]simplify:  Simplified to (- (log (* 180 (atan2 v1_y v1_x))) (log PI))
* * * * [misc]progress:  [ 124 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (exp (log (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (log (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (29 enodes)
* * [misc]simplify:  iters left: 4 (84 enodes)
* * [misc]simplify:  iters left: 3 (275 enodes)
* [exit]simplify:  Simplified to (log (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* [exit]simplify:  Simplified to (log (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* * * * [misc]progress:  [ 125 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (log (exp (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (exp (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (28 enodes)
* * [misc]simplify:  iters left: 4 (69 enodes)
* * [misc]simplify:  iters left: 3 (197 enodes)
* * [misc]simplify:  iters left: 2 (348 enodes)
* [exit]simplify:  Simplified to (pow (exp (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))
* [exit]simplify:  Simplified to (pow (exp (/ 1 PI)) (/ (atan2 v1_y v1_x) (/ 1 180)))
* * * * [misc]progress:  [ 126 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (/ (* (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (atan2 v1_y v1_x)) (* (* (sqrt (/ 1 180)) (sqrt (/ 1 180))) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (21 enodes)
* * [misc]simplify:  iters left: 5 (56 enodes)
* * [misc]simplify:  iters left: 4 (230 enodes)
* [exit]simplify:  Simplified to (* (* (/ 1 (/ 1 180)) (/ (/ 1 PI) (* PI PI))) (* (/ 1 (/ 1 180)) (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (/ (/ 1 180) (atan2 v1_y v1_x)))))
* [exit]simplify:  Simplified to (* (* (/ 1 (/ 1 180)) (/ (/ 1 PI) (* PI PI))) (* (/ 1 (/ 1 180)) (/ (* (atan2 v1_y v1_x) (atan2 v1_y v1_x)) (/ (/ 1 180) (atan2 v1_y v1_x)))))
* * * * [misc]progress:  [ 127 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ 1 (sqrt (/ 1 180)))) (/ 1 (sqrt (/ 1 180)))) (* (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (19 enodes)
* * [misc]simplify:  iters left: 5 (52 enodes)
* * [misc]simplify:  iters left: 4 (191 enodes)
* [exit]simplify:  Simplified to (* (* (/ (/ 1 (sqrt (/ 1 180))) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (/ 1 PI) (* PI PI))))
* [exit]simplify:  Simplified to (* (* (/ (/ 1 (sqrt (/ 1 180))) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (/ 1 PI) (* PI PI))))
* * * * [misc]progress:  [ 128 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (/ 1 PI)) (/ 1 PI)) (* (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (17 enodes)
* * [misc]simplify:  iters left: 5 (43 enodes)
* * [misc]simplify:  iters left: 4 (165 enodes)
* [exit]simplify:  Simplified to (* (* (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (/ 1 PI) (* PI PI)))) (/ (atan2 v1_y v1_x) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))))
* [exit]simplify:  Simplified to (* (* (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))) (* (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (/ (/ 1 PI) (* PI PI)))) (/ (atan2 v1_y v1_x) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))))
* * * * [misc]progress:  [ 129 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))) (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (67 enodes)
* * [misc]simplify:  iters left: 3 (188 enodes)
* * [misc]simplify:  iters left: 2 (340 enodes)
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))))
* [exit]simplify:  Simplified to (* (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))))
* [enter]simplify:  Simplifying (cbrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (66 enodes)
* * [misc]simplify:  iters left: 3 (192 enodes)
* * [misc]simplify:  iters left: 2 (342 enodes)
* [exit]simplify:  Simplified to (cbrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* [exit]simplify:  Simplified to (cbrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* * * * [misc]progress:  [ 130 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (cbrt (* (* (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (* (* (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (34 enodes)
* * [misc]simplify:  iters left: 4 (134 enodes)
* [exit]simplify:  Simplified to (pow (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* PI (sqrt (/ 1 180)))) 3)
* [exit]simplify:  Simplified to (pow (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* PI (sqrt (/ 1 180)))) 3)
* * * * [misc]progress:  [ 131 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))) (sqrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))))>
* [enter]simplify:  Simplifying (sqrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (66 enodes)
* * [misc]simplify:  iters left: 3 (192 enodes)
* * [misc]simplify:  iters left: 2 (342 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* [exit]simplify:  Simplified to (sqrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* [enter]simplify:  Simplifying (sqrt (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (26 enodes)
* * [misc]simplify:  iters left: 4 (66 enodes)
* * [misc]simplify:  iters left: 3 (192 enodes)
* * [misc]simplify:  iters left: 2 (342 enodes)
* [exit]simplify:  Simplified to (sqrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* [exit]simplify:  Simplified to (sqrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))
* * * * [misc]progress:  [ 132 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* 1 (atan2 v1_y v1_x))) (* PI (* (sqrt (/ 1 180)) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* 1 (* 1 (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [exit]simplify:  Simplified to (atan2 v1_y v1_x)
* [enter]simplify:  Simplifying (* PI (* (sqrt (/ 1 180)) (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (12 enodes)
* * [misc]simplify:  iters left: 4 (19 enodes)
* [exit]simplify:  Simplified to (/ PI 180)
* [exit]simplify:  Simplified to (/ PI 180)
* * * * [misc]progress:  [ 133 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x))) (* PI (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* 1 (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (18 enodes)
* * [misc]simplify:  iters left: 4 (27 enodes)
* * [misc]simplify:  iters left: 3 (28 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [enter]simplify:  Simplifying (* PI (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (* PI (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (* PI (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 134 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (* PI (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* 1 (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (23 enodes)
* * [misc]simplify:  iters left: 3 (26 enodes)
* * [misc]simplify:  iters left: 2 (32 enodes)
* * [misc]simplify:  iters left: 1 (36 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))
* [enter]simplify:  Simplifying (* PI (sqrt (/ 1 180)))
* * [misc]simplify:  iters left: 5 (6 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* [exit]simplify:  Simplified to (* PI (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (* PI (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 135 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* * * * [misc]progress:  [ 136 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 PI) (/ 1 (sqrt (/ 1 180)))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ 1 (sqrt (/ 1 180))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (15 enodes)
* * [misc]simplify:  iters left: 4 (32 enodes)
* * [misc]simplify:  iters left: 3 (42 enodes)
* * [misc]simplify:  iters left: 2 (59 enodes)
* * [misc]simplify:  iters left: 1 (77 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 PI) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ 1 PI) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 137 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (/ 1 PI)) (cbrt (/ 1 PI))) (* (cbrt (/ 1 PI)) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (cbrt (/ 1 PI)) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (54 enodes)
* * [misc]simplify:  iters left: 3 (153 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (434 enodes)
* [exit]simplify:  Simplified to (* (* (atan2 v1_y v1_x) 180) (cbrt (/ 1 PI)))
* [exit]simplify:  Simplified to (* (* (atan2 v1_y v1_x) 180) (cbrt (/ 1 PI)))
* * * * [misc]progress:  [ 138 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (sqrt (/ 1 PI)) (* (sqrt (/ 1 PI)) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (sqrt (/ 1 PI)) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (14 enodes)
* * [misc]simplify:  iters left: 5 (24 enodes)
* * [misc]simplify:  iters left: 4 (54 enodes)
* * [misc]simplify:  iters left: 3 (153 enodes)
* * [misc]simplify:  iters left: 2 (291 enodes)
* * [misc]simplify:  iters left: 1 (434 enodes)
* [exit]simplify:  Simplified to (* (* (atan2 v1_y v1_x) 180) (sqrt (/ 1 PI)))
* [exit]simplify:  Simplified to (* (* (atan2 v1_y v1_x) 180) (sqrt (/ 1 PI)))
* * * * [misc]progress:  [ 139 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 140 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* 1 (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 141 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (/ 1 PI) (* 1 (atan2 v1_y v1_x))) (* (sqrt (/ 1 180)) (sqrt (/ 1 180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* 1 (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (23 enodes)
* * [misc]simplify:  iters left: 2 (24 enodes)
* * [misc]simplify:  iters left: 1 (30 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) PI)
* * * * [misc]progress:  [ 142 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x))) (sqrt (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (atan2 v1_y v1_x)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (22 enodes)
* * [misc]simplify:  iters left: 4 (52 enodes)
* * [misc]simplify:  iters left: 3 (137 enodes)
* * [misc]simplify:  iters left: 2 (190 enodes)
* * [misc]simplify:  iters left: 1 (251 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) PI) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) PI) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 143 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* (/ 1 PI) (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) (sqrt (/ 1 180))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* 1 (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (38 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (98 enodes)
* * [misc]simplify:  iters left: 1 (184 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) PI) (sqrt (/ 1 180)))
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) PI) (sqrt (/ 1 180)))
* * * * [misc]progress:  [ 144 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (/ (* 1 (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))) PI))>
* [enter]simplify:  Simplifying (* 1 (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (11 enodes)
* * [misc]simplify:  iters left: 5 (21 enodes)
* * [misc]simplify:  iters left: 4 (37 enodes)
* * [misc]simplify:  iters left: 3 (50 enodes)
* * [misc]simplify:  iters left: 2 (80 enodes)
* * [misc]simplify:  iters left: 1 (119 enodes)
* [exit]simplify:  Simplified to (* 180 (atan2 v1_y v1_x))
* [exit]simplify:  Simplified to (* 180 (atan2 v1_y v1_x))
* * * * [misc]progress:  [ 145 / 157 ] simplifiying candidate #<alt-delta (λ (v1_y v1_x) (* (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))) (/ 1 PI)))>
* * * * [misc]progress:  [ 146 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 147 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 148 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180)))))
* * [misc]simplify:  iters left: 6 (13 enodes)
* * [misc]simplify:  iters left: 5 (25 enodes)
* * [misc]simplify:  iters left: 4 (64 enodes)
* * [misc]simplify:  iters left: 3 (191 enodes)
* * [misc]simplify:  iters left: 2 (333 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))
* * * * [misc]progress:  [ 149 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (94 enodes)
* * [misc]simplify:  iters left: 1 (158 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* 1/180 PI))
* * * * [misc]progress:  [ 150 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (94 enodes)
* * [misc]simplify:  iters left: 1 (158 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* 1/180 PI))
* * * * [misc]progress:  [ 151 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (/ (atan2 v1_y v1_x) (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (12 enodes)
* * [misc]simplify:  iters left: 5 (20 enodes)
* * [misc]simplify:  iters left: 4 (35 enodes)
* * [misc]simplify:  iters left: 3 (60 enodes)
* * [misc]simplify:  iters left: 2 (94 enodes)
* * [misc]simplify:  iters left: 1 (158 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* 1/180 PI))
* * * * [misc]progress:  [ 152 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (224 enodes)
* * [misc]simplify:  iters left: 2 (388 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* PI (sqrt 1/180)))
* * * * [misc]progress:  [ 153 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (224 enodes)
* * [misc]simplify:  iters left: 2 (388 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* PI (sqrt 1/180)))
* * * * [misc]progress:  [ 154 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180)))))>
* [enter]simplify:  Simplifying (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt 1/180))))
* * [misc]simplify:  iters left: 6 (15 enodes)
* * [misc]simplify:  iters left: 5 (27 enodes)
* * [misc]simplify:  iters left: 4 (70 enodes)
* * [misc]simplify:  iters left: 3 (224 enodes)
* * [misc]simplify:  iters left: 2 (388 enodes)
* [exit]simplify:  Simplified to (/ (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))) (* PI (sqrt 1/180)))
* * * * [misc]progress:  [ 155 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (21 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI 1/180))
* * * * [misc]progress:  [ 156 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (21 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI 1/180))
* * * * [misc]progress:  [ 157 / 157 ] simplifiying candidate #<alt-event (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2))))>
* [enter]simplify:  Simplifying (/ (atan2 v1_y v1_x) (* PI (pow (sqrt 1/180) 2)))
* * [misc]simplify:  iters left: 6 (10 enodes)
* * [misc]simplify:  iters left: 5 (14 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (21 enodes)
* [exit]simplify:  Simplified to (/ (atan2 v1_y v1_x) (* PI 1/180))
* * * [misc]progress:  adding candidates to table
* [misc]progress:  [Phase 3 of 3] Extracting.
* * [misc]regime-changes:  Finding splitpoints for: (#<alt-delta (λ (v1_y v1_x) (* (/ 1 PI) (* (/ 1 (sqrt (/ 1 180))) (/ (atan2 v1_y v1_x) (sqrt (/ 1 180))))))> #<alt-delta (λ (v1_y v1_x) (* (/ (sqrt (atan2 v1_y v1_x)) PI) (/ (sqrt (atan2 v1_y v1_x)) (/ 1 180))))> #<alt-event (λ (v1_y v1_x) (/ (* (atan2 v1_y v1_x) 180) PI))> #<alt-delta (λ (v1_y v1_x) (* (* (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180)))) (cbrt (/ (atan2 v1_y v1_x) (* PI (/ 1 180))))) (cbrt (/ (/ (atan2 v1_y v1_x) PI) (/ 1 180)))))> #<alt-delta (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>)
* [misc]regimes:  Found splitpoints: (#s(sp 0 (/ (* (atan2 v1_y v1_x) 180) PI) +nan.0)) , with alts (#<alt-delta (λ (v1_y v1_x) (/ (atan2 v1_y v1_x) (/ PI 180)))>)
* [enter]simplify:  Simplifying (/ PI 180)
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (/ PI 180)
* [exit]simplify:  Simplified to (/ PI 180)