* [misc]progress:  [Phase 1 of 3] Setting up.
* * * [misc]progress:  [1/2] Preparing points
* * * [misc]progress:  [2/2] Setting up program.
* [enter]simplify:  Simplifying (/ a (- (acos a)))
* * [misc]simplify:  iters left: 5 (4 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]progress:  [Phase 2 of 3] Improving.
* * [misc]progress:  iteration 1 / 2
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-event (λ (a) (/ a (- (acos a))))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 2 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (/ a (- (acos a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* * * * [misc]progress:  [ 2 / 2 ] generating series at (2 2 1)
* [misc]approximate:  Taking taylor expansion of (acos a) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 (- a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 2 ] rewriting at (2)
* * * * [misc]progress:  [ 2 / 2 ] rewriting at (2 2 1)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 27 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos a))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos a)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* * * * [misc]progress:  [ 2 / 27 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos (/ 1 a)))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ 1 a))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (22 enodes)
* * [misc]simplify:  iters left: 1 (23 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* * * * [misc]progress:  [ 3 / 27 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos (/ -1 a)))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ -1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (13 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 (/ (- a) (acos (/ -1 a)))
* * * * [misc]progress:  [ 4 / 27 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos a))))>
* [enter]simplify:  Simplifying (/ a (- (acos a)))
* * [misc]simplify:  iters left: 5 (4 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* * * * [misc]progress:  [ 5 / 27 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos (/ 1 a)))))>
* [enter]simplify:  Simplifying (/ a (- (acos (/ 1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* * * * [misc]progress:  [ 6 / 27 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos (/ -1 a)))))>
* [enter]simplify:  Simplifying (/ a (- (acos (/ -1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* * * * [misc]progress:  [ 7 / 27 ] simplifiying candidate #<alt-delta (λ (a) (pow (/ a (- (acos a))) 1))>
* * * * [misc]progress:  [ 8 / 27 ] simplifiying candidate #<alt-delta (λ (a) (exp (log (/ a (- (acos a))))))>
* [enter]simplify:  Simplifying (log (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (log (/ a (- (acos a))))
* [exit]simplify:  Simplified to (log (/ a (- (acos a))))
* * * * [misc]progress:  [ 9 / 27 ] simplifiying candidate #<alt-delta (λ (a) (log (exp (/ a (- (acos a))))))>
* [enter]simplify:  Simplifying (exp (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* [exit]simplify:  Simplified to (exp (/ a (- (acos a))))
* [exit]simplify:  Simplified to (exp (/ a (- (acos a))))
* * * * [misc]progress:  [ 10 / 27 ] simplifiying candidate #<alt-delta (λ (a) (cube (cbrt (/ a (- (acos a))))))>
* [enter]simplify:  Simplifying (cbrt (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* [exit]simplify:  Simplified to (cbrt (/ a (- (acos a))))
* [exit]simplify:  Simplified to (cbrt (/ a (- (acos a))))
* * * * [misc]progress:  [ 11 / 27 ] simplifiying candidate #<alt-delta (λ (a) (cbrt (cube (/ a (- (acos a))))))>
* [enter]simplify:  Simplifying (cube (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (22 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (64 enodes)
* * [misc]simplify:  iters left: 1 (113 enodes)
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* * * * [misc]progress:  [ 12 / 27 ] simplifiying candidate #<alt-delta (λ (a) (sqr (sqrt (/ a (- (acos a))))))>
* [enter]simplify:  Simplifying (sqrt (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))
* * * * [misc]progress:  [ 13 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ (- a) (- (- (acos a)))))>
* [enter]simplify:  Simplifying (- a)
* * [misc]simplify:  iters left: 2 (2 enodes)
* [exit]simplify:  Simplified to (- a)
* [exit]simplify:  Simplified to (- a)
* [enter]simplify:  Simplifying (- (- (acos a)))
* * [misc]simplify:  iters left: 5 (4 enodes)
* [exit]simplify:  Simplified to (acos a)
* [exit]simplify:  Simplified to (acos a)
* * * * [misc]progress:  [ 14 / 27 ] simplifiying candidate #<alt-delta (λ (a) (* 1 (/ a (- (acos a)))))>
* * * * [misc]progress:  [ 15 / 27 ] simplifiying candidate #<alt-delta (λ (a) (* a (/ 1 (- (acos a)))))>
* [enter]simplify:  Simplifying (/ 1 (- (acos a)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (7 enodes)
* [exit]simplify:  Simplified to (/ 1 (- (acos a)))
* [exit]simplify:  Simplified to (/ 1 (- (acos a)))
* * * * [misc]progress:  [ 16 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ 1 (/ (- (acos a)) a)))>
* [enter]simplify:  Simplifying (/ (- (acos a)) a)
* * [misc]simplify:  iters left: 5 (4 enodes)
* * [misc]simplify:  iters left: 4 (6 enodes)
* [exit]simplify:  Simplified to (- (/ (acos a) a))
* [exit]simplify:  Simplified to (- (/ (acos a) a))
* * * * [misc]progress:  [ 17 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a 1) (- (acos a))))>
* [enter]simplify:  Simplifying (/ a 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 18 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a -1) (acos a)))>
* [enter]simplify:  Simplifying (/ a -1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (/ a -1)
* [exit]simplify:  Simplified to (/ a -1)
* * * * [misc]progress:  [ 19 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (- 1)) (acos a)))>
* [enter]simplify:  Simplifying (/ a (- 1))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- 1))
* [exit]simplify:  Simplified to (/ a (- 1))
* * * * [misc]progress:  [ 20 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a 1) (- (acos a))))>
* [enter]simplify:  Simplifying (/ a 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 21 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (pow (acos a) 1))))>
* * * * [misc]progress:  [ 22 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (exp (log (acos a))))))>
* [enter]simplify:  Simplifying (log (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (log (acos a))
* [exit]simplify:  Simplified to (log (acos a))
* * * * [misc]progress:  [ 23 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (log (exp (acos a))))))>
* [enter]simplify:  Simplifying (exp (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (exp (acos a))
* [exit]simplify:  Simplified to (exp (acos a))
* * * * [misc]progress:  [ 24 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (cube (cbrt (acos a))))))>
* [enter]simplify:  Simplifying (cbrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (cbrt (acos a))
* [exit]simplify:  Simplified to (cbrt (acos a))
* * * * [misc]progress:  [ 25 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (cbrt (cube (acos a))))))>
* [enter]simplify:  Simplifying (cube (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (cube (acos a))
* [exit]simplify:  Simplified to (cube (acos a))
* * * * [misc]progress:  [ 26 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (sqrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (acos a))
* [exit]simplify:  Simplified to (sqrt (acos a))
* * * * [misc]progress:  [ 27 / 27 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (* 1 (acos a)))))>
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  iteration 2 / 2
* * * [misc]progress:  picking best candidate
* * * * [misc]pick:  Picked  #<alt-delta (λ (a) (/ a (- (sqr (sqrt (acos a))))))>
* * * [misc]progress:  localizing error
* * * [misc]progress:  generating series expansions
* * * * [misc]progress:  [ 1 / 4 ] generating series at (2)
* [misc]approximate:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* * * * [misc]progress:  [ 2 / 4 ] generating series at (2 2 1)
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * * [misc]progress:  [ 3 / 4 ] generating series at (2 2 1 1)
* [misc]approximate:  Taking taylor expansion of (sqrt (acos a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* * * * [misc]progress:  [ 4 / 4 ] generating series at (2 2 1 1 1)
* [misc]approximate:  Taking taylor expansion of (acos a) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 (- a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * [misc]progress:  generating rewritten candidates
* * * * [misc]progress:  [ 1 / 4 ] rewriting at (2)
* * * * [misc]progress:  [ 2 / 4 ] rewriting at (2 2 1)
* * * * [misc]progress:  [ 3 / 4 ] rewriting at (2 2 1 1)
* * * * [misc]progress:  [ 4 / 4 ] rewriting at (2 2 1 1 1)
* * * [misc]progress:  simplifying candidates
* * * * [misc]progress:  [ 1 / 60 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos a))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos a)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (9 enodes)
* * [misc]simplify:  iters left: 3 (12 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* * * * [misc]progress:  [ 2 / 60 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos (/ 1 a)))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ 1 a))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (16 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (22 enodes)
* * [misc]simplify:  iters left: 1 (23 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* * * * [misc]progress:  [ 3 / 60 ] simplifiying candidate #<alt-event (λ (a) (* -1 (/ a (acos (/ -1 a)))))>
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ -1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (13 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 (/ (- a) (acos (/ -1 a)))
* * * * [misc]progress:  [ 4 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos a))))>
* [enter]simplify:  Simplifying (/ a (- (acos a)))
* * [misc]simplify:  iters left: 5 (4 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* * * * [misc]progress:  [ 5 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos (/ 1 a)))))>
* [enter]simplify:  Simplifying (/ a (- (acos (/ 1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* * * * [misc]progress:  [ 6 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (acos (/ -1 a)))))>
* [enter]simplify:  Simplifying (/ a (- (acos (/ -1 a))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* * * * [misc]progress:  [ 7 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* * * * [misc]progress:  [ 8 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos (/ 1 a)))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* * * * [misc]progress:  [ 9 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos (/ -1 a)))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* * * * [misc]progress:  [ 10 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* * * * [misc]progress:  [ 11 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos (/ 1 a)))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (19 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* * * * [misc]progress:  [ 12 / 60 ] simplifiying candidate #<alt-event (λ (a) (/ a (- (sqr (sqrt (acos (/ -1 a)))))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 6 (8 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (13 enodes)
* * [misc]simplify:  iters left: 3 (17 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* * * * [misc]progress:  [ 13 / 60 ] simplifiying candidate #<alt-delta (λ (a) (pow (/ a (- (sqr (sqrt (acos a))))) 1))>
* * * * [misc]progress:  [ 14 / 60 ] simplifiying candidate #<alt-delta (λ (a) (exp (log (/ a (- (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (log (/ a (- (sqr (sqrt (acos a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (11 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (23 enodes)
* * [misc]simplify:  iters left: 2 (27 enodes)
* * [misc]simplify:  iters left: 1 (31 enodes)
* [exit]simplify:  Simplified to (log (/ a (- (acos a))))
* [exit]simplify:  Simplified to (log (/ a (- (acos a))))
* * * * [misc]progress:  [ 15 / 60 ] simplifiying candidate #<alt-delta (λ (a) (log (exp (/ a (- (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (exp (/ a (- (sqr (sqrt (acos a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* [exit]simplify:  Simplified to (exp (/ a (- (acos a))))
* [exit]simplify:  Simplified to (exp (/ a (- (acos a))))
* * * * [misc]progress:  [ 16 / 60 ] simplifiying candidate #<alt-delta (λ (a) (cube (cbrt (/ a (- (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cbrt (/ a (- (sqr (sqrt (acos a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* [exit]simplify:  Simplified to (cbrt (/ a (- (acos a))))
* [exit]simplify:  Simplified to (cbrt (/ a (- (acos a))))
* * * * [misc]progress:  [ 17 / 60 ] simplifiying candidate #<alt-delta (λ (a) (cbrt (cube (/ a (- (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cube (/ a (- (sqr (sqrt (acos a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (13 enodes)
* * [misc]simplify:  iters left: 4 (29 enodes)
* * [misc]simplify:  iters left: 3 (56 enodes)
* * [misc]simplify:  iters left: 2 (113 enodes)
* * [misc]simplify:  iters left: 1 (213 enodes)
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* * * * [misc]progress:  [ 18 / 60 ] simplifiying candidate #<alt-delta (λ (a) (sqr (sqrt (/ a (- (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (sqrt (/ a (- (sqr (sqrt (acos a))))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (8 enodes)
* * [misc]simplify:  iters left: 4 (12 enodes)
* * [misc]simplify:  iters left: 3 (16 enodes)
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))
* * * * [misc]progress:  [ 19 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (- a) (- (- (sqr (sqrt (acos a)))))))>
* [enter]simplify:  Simplifying (- a)
* * [misc]simplify:  iters left: 2 (2 enodes)
* [exit]simplify:  Simplified to (- a)
* [exit]simplify:  Simplified to (- a)
* [enter]simplify:  Simplifying (- (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (7 enodes)
* * [misc]simplify:  iters left: 4 (11 enodes)
* * [misc]simplify:  iters left: 3 (15 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (acos a)
* [exit]simplify:  Simplified to (acos a)
* * * * [misc]progress:  [ 20 / 60 ] simplifiying candidate #<alt-delta (λ (a) (* 1 (/ a (- (sqr (sqrt (acos a)))))))>
* * * * [misc]progress:  [ 21 / 60 ] simplifiying candidate #<alt-delta (λ (a) (* a (/ 1 (- (sqr (sqrt (acos a)))))))>
* [enter]simplify:  Simplifying (/ 1 (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 6 (7 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (14 enodes)
* * [misc]simplify:  iters left: 3 (18 enodes)
* [exit]simplify:  Simplified to (/ 1 (- (acos a)))
* [exit]simplify:  Simplified to (/ 1 (- (acos a)))
* * * * [misc]progress:  [ 22 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ 1 (/ (- (sqr (sqrt (acos a)))) a)))>
* [enter]simplify:  Simplifying (/ (- (sqr (sqrt (acos a)))) a)
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* * [misc]simplify:  iters left: 4 (15 enodes)
* * [misc]simplify:  iters left: 3 (20 enodes)
* * [misc]simplify:  iters left: 2 (26 enodes)
* * [misc]simplify:  iters left: 1 (28 enodes)
* [exit]simplify:  Simplified to (/ (- (acos a)) a)
* [exit]simplify:  Simplified to (/ (- (acos a)) a)
* * * * [misc]progress:  [ 23 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a 1) (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 24 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a -1) (sqr (sqrt (acos a)))))>
* [enter]simplify:  Simplifying (/ a -1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (/ a -1)
* [exit]simplify:  Simplified to (/ a -1)
* * * * [misc]progress:  [ 25 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (- (sqr (sqrt 1)))) (sqr (sqrt (acos a)))))>
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt 1))))
* * [misc]simplify:  iters left: 6 (6 enodes)
* * [misc]simplify:  iters left: 5 (9 enodes)
* [exit]simplify:  Simplified to (/ a (- 1))
* [exit]simplify:  Simplified to (/ a (- 1))
* * * * [misc]progress:  [ 26 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (- (sqr 1))) (sqr (sqrt (acos a)))))>
* [enter]simplify:  Simplifying (/ a (- (sqr 1)))
* * [misc]simplify:  iters left: 5 (5 enodes)
* * [misc]simplify:  iters left: 4 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- 1))
* [exit]simplify:  Simplified to (/ a (- 1))
* * * * [misc]progress:  [ 27 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (- (sqrt (acos a)))) (sqrt (acos a))))>
* [enter]simplify:  Simplifying (/ a (- (sqrt (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* [exit]simplify:  Simplified to (/ a (- (sqrt (acos a))))
* [exit]simplify:  Simplified to (/ a (- (sqrt (acos a))))
* * * * [misc]progress:  [ 28 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (- 1)) (sqr (sqrt (acos a)))))>
* [enter]simplify:  Simplifying (/ a (- 1))
* * [misc]simplify:  iters left: 4 (4 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- 1))
* [exit]simplify:  Simplified to (/ a (- 1))
* * * * [misc]progress:  [ 29 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (sqr (sqrt 1))) (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a (sqr (sqrt 1)))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 30 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (sqr 1)) (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a (sqr 1))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 31 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a (sqrt (acos a))) (- (sqrt (acos a)))))>
* [enter]simplify:  Simplifying (/ a (sqrt (acos a)))
* * [misc]simplify:  iters left: 4 (4 enodes)
* [exit]simplify:  Simplified to (/ a (sqrt (acos a)))
* [exit]simplify:  Simplified to (/ a (sqrt (acos a)))
* * * * [misc]progress:  [ 32 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ (/ a 1) (- (sqr (sqrt (acos a))))))>
* [enter]simplify:  Simplifying (/ a 1)
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (/ a 1)
* [exit]simplify:  Simplified to (/ a 1)
* * * * [misc]progress:  [ 33 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (pow (sqrt (acos a)) 2))))>
* * * * [misc]progress:  [ 34 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (pow (sqr (sqrt (acos a))) 1))))>
* * * * [misc]progress:  [ 35 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (exp (log (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (log (sqr (sqrt (acos a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (log (acos a))
* [exit]simplify:  Simplified to (log (acos a))
* * * * [misc]progress:  [ 36 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (log (exp (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (exp (sqr (sqrt (acos a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* [exit]simplify:  Simplified to (exp (acos a))
* [exit]simplify:  Simplified to (exp (acos a))
* * * * [misc]progress:  [ 37 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (cube (cbrt (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cbrt (sqr (sqrt (acos a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* [exit]simplify:  Simplified to (cbrt (acos a))
* [exit]simplify:  Simplified to (cbrt (acos a))
* * * * [misc]progress:  [ 38 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (cbrt (cube (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cube (sqr (sqrt (acos a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (cube (acos a))
* [exit]simplify:  Simplified to (cube (acos a))
* * * * [misc]progress:  [ 39 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (sqrt (sqr (sqrt (acos a))))
* * [misc]simplify:  iters left: 4 (5 enodes)
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* * [misc]simplify:  iters left: 1 (9 enodes)
* [exit]simplify:  Simplified to (sqrt (acos a))
* [exit]simplify:  Simplified to (sqrt (acos a))
* * * * [misc]progress:  [ 40 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (* (sqr (sqrt 1)) (sqr (sqrt (acos a)))))))>
* [enter]simplify:  Simplifying (sqr (sqrt 1))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (6 enodes)
* [exit]simplify:  Simplified to 1
* [exit]simplify:  Simplified to 1
* [enter]simplify:  Simplifying (sqr (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* * [misc]simplify:  iters left: 1 (6 enodes)
* [exit]simplify:  Simplified to (acos a)
* [exit]simplify:  Simplified to (acos a)
* * * * [misc]progress:  [ 41 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (* (sqr 1) (sqr (sqrt (acos a)))))))>
* [enter]simplify:  Simplifying (sqr 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqr 1)
* [exit]simplify:  Simplified to (sqr 1)
* [enter]simplify:  Simplifying (sqr (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (5 enodes)
* * [misc]simplify:  iters left: 1 (6 enodes)
* [exit]simplify:  Simplified to (acos a)
* [exit]simplify:  Simplified to (acos a)
* * * * [misc]progress:  [ 42 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (* (sqrt (acos a)) (sqrt (acos a))))))>
* * * * [misc]progress:  [ 43 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (* 1 (sqr (sqrt (acos a)))))))>
* * * * [misc]progress:  [ 44 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (pow (acos a) 1/2)))))>
* * * * [misc]progress:  [ 45 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (pow (sqrt (acos a)) 1)))))>
* * * * [misc]progress:  [ 46 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (exp (log (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (log (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (log (sqrt (acos a)))
* [exit]simplify:  Simplified to (log (sqrt (acos a)))
* * * * [misc]progress:  [ 47 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (log (exp (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (exp (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (exp (sqrt (acos a)))
* [exit]simplify:  Simplified to (exp (sqrt (acos a)))
* * * * [misc]progress:  [ 48 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (cube (cbrt (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cbrt (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (cbrt (sqrt (acos a)))
* [exit]simplify:  Simplified to (cbrt (sqrt (acos a)))
* * * * [misc]progress:  [ 49 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (cbrt (cube (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (cube (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* * [misc]simplify:  iters left: 2 (6 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (* (acos a) (sqrt (acos a)))
* [exit]simplify:  Simplified to (* (acos a) (sqrt (acos a)))
* * * * [misc]progress:  [ 50 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (* (sqrt 1) (sqrt (acos a)))))))>
* [enter]simplify:  Simplifying (sqrt 1)
* * [misc]simplify:  iters left: 1 (2 enodes)
* [exit]simplify:  Simplified to (sqrt 1)
* [exit]simplify:  Simplified to (sqrt 1)
* [enter]simplify:  Simplifying (sqrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (acos a))
* [exit]simplify:  Simplified to (sqrt (acos a))
* * * * [misc]progress:  [ 51 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqr (sqrt (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (sqrt (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (acos a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (acos a)))
* * * * [misc]progress:  [ 52 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (fabs (sqrt (acos a)))))))>
* * * * [misc]progress:  [ 53 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (* 1 (sqrt (acos a)))))))>
* * * * [misc]progress:  [ 54 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (pow (acos a) 1))))))>
* * * * [misc]progress:  [ 55 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (exp (log (acos a))))))))>
* [enter]simplify:  Simplifying (log (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (log (acos a))
* [exit]simplify:  Simplified to (log (acos a))
* * * * [misc]progress:  [ 56 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (log (exp (acos a))))))))>
* [enter]simplify:  Simplifying (exp (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (exp (acos a))
* [exit]simplify:  Simplified to (exp (acos a))
* * * * [misc]progress:  [ 57 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (cube (cbrt (acos a))))))))>
* [enter]simplify:  Simplifying (cbrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (cbrt (acos a))
* [exit]simplify:  Simplified to (cbrt (acos a))
* * * * [misc]progress:  [ 58 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (cbrt (cube (acos a))))))))>
* [enter]simplify:  Simplifying (cube (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* * [misc]simplify:  iters left: 1 (5 enodes)
* [exit]simplify:  Simplified to (cube (acos a))
* [exit]simplify:  Simplified to (cube (acos a))
* * * * [misc]progress:  [ 59 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (sqr (sqrt (acos a))))))))>
* [enter]simplify:  Simplifying (sqrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (acos a))
* [exit]simplify:  Simplified to (sqrt (acos a))
* * * * [misc]progress:  [ 60 / 60 ] simplifiying candidate #<alt-delta (λ (a) (/ a (- (sqr (sqrt (* 1 (acos a)))))))>
* * * [misc]progress:  adding candidates to table
* * [misc]progress:  Final touches.
* * * [misc]progress:  tayloring alt 1 of 4
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (/ a (- (acos a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ a (- (acos a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ a (- (acos a))))) into (* -1 (/ a (acos a)))
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ a (- (acos a))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ a (- (acos a))))) into (* -1 (/ a (acos a)))
* [misc]backup-simplify:  Simplify (* -1 (/ a (acos a))) into (* -1 (/ a (acos a)))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* -1 (/ a (acos a))) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (/ (/ 1 a) (- (acos (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ (/ 1 a) (- (acos (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ (/ 1 a) (- (acos (/ 1 a)))))) into (/ -1 (* (acos (/ 1 a)) a))
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ (/ 1 a) (- (acos (/ 1 a)))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ (/ 1 a) (- (acos (/ 1 a)))))) into (/ -1 (* (acos (/ 1 a)) a))
* [misc]backup-simplify:  Simplify (/ -1 (* (acos (/ 1 a)) a)) into (/ -1 (* (acos (/ 1 a)) a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ -1 (* (acos (/ 1 a)) a)) into (/ -1 (* (acos (/ 1 a)) a))
* [misc]approximate:  Taking taylor expansion of (cbrt (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) into (/ 1 (* a (acos (/ -1 a))))
* [misc]taylor:  Taking taylor expansion of (cbrt (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in a
* [misc]backup-simplify:  Simplify (cbrt (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) into (/ 1 (* a (acos (/ -1 a))))
* [misc]backup-simplify:  Simplify (/ 1 (* a (acos (/ -1 a)))) into (/ 1 (* a (acos (/ -1 a))))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ 1 (* a (acos (/ -1 a)))) into (/ 1 (* a (acos (/ -1 a))))
* [misc]approximate:  Taking taylor expansion of (/ a (- (acos a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* [misc]approximate:  Taking taylor expansion of (cube (/ a (- (acos a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (/ a (- (acos a)))) in a
* [misc]backup-simplify:  Simplify (cube (/ a (- (acos a)))) into (cube (* -1 (/ a (acos a))))
* [misc]taylor:  Taking taylor expansion of (cube (/ a (- (acos a)))) in a
* [misc]backup-simplify:  Simplify (cube (/ a (- (acos a)))) into (cube (* -1 (/ a (acos a))))
* [misc]backup-simplify:  Simplify (cube (* -1 (/ a (acos a)))) into (cube (* -1 (/ a (acos a))))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (cube (* -1 (/ a (acos a)))) into (cube (* -1 (/ a (acos a))))
* [misc]approximate:  Taking taylor expansion of (cube (/ (/ 1 a) (- (acos (/ 1 a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]backup-simplify:  Simplify (cube (/ (/ 1 a) (- (acos (/ 1 a))))) into (cube (/ -1 (* (acos (/ 1 a)) a)))
* [misc]taylor:  Taking taylor expansion of (cube (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]backup-simplify:  Simplify (cube (/ (/ 1 a) (- (acos (/ 1 a))))) into (cube (/ -1 (* (acos (/ 1 a)) a)))
* [misc]backup-simplify:  Simplify (cube (/ -1 (* (acos (/ 1 a)) a))) into (cube (/ -1 (* (acos (/ 1 a)) a)))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (cube (/ -1 (* (acos (/ 1 a)) a))) into (cube (/ -1 (* (acos (/ 1 a)) a)))
* [misc]approximate:  Taking taylor expansion of (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]backup-simplify:  Simplify (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) into (cube (/ 1 (* a (acos (/ -1 a)))))
* [misc]taylor:  Taking taylor expansion of (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]backup-simplify:  Simplify (cube (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) into (cube (/ 1 (* a (acos (/ -1 a)))))
* [misc]backup-simplify:  Simplify (cube (/ 1 (* a (acos (/ -1 a))))) into (cube (/ 1 (* a (acos (/ -1 a)))))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (cube (/ 1 (* a (acos (/ -1 a))))) into (cube (/ 1 (* a (acos (/ -1 a)))))
* [misc]approximate:  Taking taylor expansion of (acos a) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 (- a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * [misc]progress:  tayloring alt 2 of 4
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos a) 1/4) (pow (acos a) 1/4)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (* 0 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ 1 a)) 1/4) (pow (acos (/ 1 a)) 1/4)) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (* 0 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ -1 a)) 1/4) (pow (acos (/ -1 a)) 1/4)) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (* 0 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]approximate:  Taking taylor expansion of (/ a (- (sqr (sqr (sqrt (sqrt (acos a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqr (sqrt (sqrt (acos a))))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos a) 1/4) (pow (acos a) 1/4)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqr (sqrt (sqrt (acos a))))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos a) 1/4) (pow (acos a) 1/4)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (* 0 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ 1 a)) 1/4) (pow (acos (/ 1 a)) 1/4)) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ 1 a)) 1/4) (pow (acos (/ 1 a)) 1/4)) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (* 0 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ -1 a)) 1/4) (pow (acos (/ -1 a)) 1/4)) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a)))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ -1 a)) 1/4) (pow (acos (/ -1 a)) 1/4)) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (* 0 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* [misc]approximate:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos a))) into (pow (acos a) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos a) 1/4) (pow (acos a) 1/4)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (* 0 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos a) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos a) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos a) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ 1 a)))) into (pow (acos (/ 1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ 1 a)) 1/4) (pow (acos (/ 1 a)) 1/4)) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (* 0 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ 1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ 1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ 1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqr (sqrt (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (sqrt (acos (/ -1 a)))) into (pow (acos (/ -1 a)) 1/4)
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (* (pow (acos (/ -1 a)) 1/4) (pow (acos (/ -1 a)) 1/4)) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (* 0 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (pow (acos (/ -1 a)) 1/4))) into 0
* [misc]backup-simplify:  Simplify (+ (* (pow (acos (/ -1 a)) 1/4) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow (acos (/ -1 a)) 1/4)))))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* * * [misc]progress:  tayloring alt 3 of 4
* [misc]approximate:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (sqr (sqrt (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (sqr (sqrt (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (sqr (sqrt (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (sqr (sqrt (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos a))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos a)) (sqrt (acos a))) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (* 0 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (* 0 (sqrt (acos a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos a)) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ 1 a))) (sqrt (acos (/ 1 a)))) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (* 0 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ 1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ 1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (* (sqrt (acos (/ -1 a))) (sqrt (acos (/ -1 a)))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (* 0 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (+ (* (sqrt (acos (/ -1 a))) 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 (sqrt (acos (/ -1 a)))))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos a)))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos a)) into (sqrt (acos a))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ 1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ 1 a))) into (sqrt (acos (/ 1 a)))
* [misc]approximate:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]taylor:  Taking taylor expansion of (sqrt (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 0 (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+)) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr 0) (+ (* 2 (* 0 0)) (* 2 (* 0 0)))) (* 2 (sqrt (acos (/ -1 a))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (sqrt (acos (/ -1 a))) into (sqrt (acos (/ -1 a)))
* [misc]approximate:  Taking taylor expansion of (acos a) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 (- a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * [misc]progress:  tayloring alt 4 of 4
* [misc]approximate:  Taking taylor expansion of (/ a (- (acos a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (/ -1 (acos a)) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos a)) a) into (* -1 (/ a (acos a)))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (acos (/ 1 a))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ -1 (acos (/ 1 a))) (/ 1 (/ 1 a))) into (* -1 (/ a (acos (/ 1 a))))
* [misc]approximate:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (acos (/ -1 a))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (* (/ 1 (acos (/ -1 a))) (/ 1 (/ 1 (- a)))) into (* -1 (/ a (acos (/ -1 a))))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (/ a (- (acos a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ a (- (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ a (- (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos a)) (* 2 (sqrt 0))) into (/ +nan.0 (acos a))
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ a (- (acos a))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ a (- (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos a)) (* 2 (sqrt 0))) into (/ +nan.0 (acos a))
* [misc]backup-simplify:  Simplify (* 0 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (acos a))) (* (/ +nan.0 (acos a)) 0)) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos a))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos a)))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (sqr (acos a)))) (+ (* (/ +nan.0 (acos a)) (/ +nan.0 (acos a))) (* (/ +nan.0 (sqr (acos a))) 0))) into (- (* +nan.0 (/ 1 (sqr (acos a)))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (sqr (acos a))))) into (- (* +nan.0 (/ 1 (sqr (acos a)))))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos a)) (/ +nan.0 (sqr (acos a))))))) (* 2 0)) into (/ +nan.0 (pow (acos a) 3))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos a) 3))) (+ (* (/ +nan.0 (acos a)) (/ +nan.0 (sqr (acos a)))) (+ (* (/ +nan.0 (sqr (acos a))) (/ +nan.0 (acos a))) (* (/ +nan.0 (pow (acos a) 3)) 0)))) into (- (* +nan.0 (/ 1 (pow (acos a) 3))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos a) 3)))) into (- (* +nan.0 (/ 1 (pow (acos a) 3))))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (sqr (acos a)))) (+ (* 2 (* (/ +nan.0 (acos a)) (/ +nan.0 (pow (acos a) 3)))))) (* 2 0)) into (/ +nan.0 (pow (acos a) 4))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos a) 4))) (+ (* (/ +nan.0 (acos a)) (/ +nan.0 (pow (acos a) 3))) (+ (* (/ +nan.0 (sqr (acos a))) (/ +nan.0 (sqr (acos a)))) (+ (* (/ +nan.0 (pow (acos a) 3)) (/ +nan.0 (acos a))) (* (/ +nan.0 (pow (acos a) 4)) 0))))) into (- (* +nan.0 (/ 1 (pow (acos a) 4))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos a) 4)))) into (- (* +nan.0 (/ 1 (pow (acos a) 4))))
* [misc]backup-simplify:  Simplify (+ (* (- (* +nan.0 (/ 1 (pow (acos a) 4)))) (pow a 4)) (+ (* (- (* +nan.0 (/ 1 (pow (acos a) 3)))) (pow a 3)) (* (- (* +nan.0 (/ 1 (sqr (acos a))))) (sqr a)))) into (- (+ (* +nan.0 (/ (sqr a) (sqr (acos a)))) (- (+ (* +nan.0 (/ (pow a 4) (pow (acos a) 4))) (- (* +nan.0 (/ (pow a 3) (pow (acos a) 3))))))))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 a) (- (acos (/ 1 a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 a) (- (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos (/ 1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 a) (- (acos (/ 1 a)))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos (/ 1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (* 0 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (acos (/ 1 a)))) (* (/ +nan.0 (acos (/ 1 a))) 0)) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos (/ 1 a)))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos (/ 1 a))))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (sqr (acos (/ 1 a))))) (+ (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (acos (/ 1 a)))) (* (/ +nan.0 (sqr (acos (/ 1 a)))) 0))) into (- (* +nan.0 (/ 1 (sqr (acos (/ 1 a))))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (sqr (acos (/ 1 a)))))) into (- (* +nan.0 (/ 1 (sqr (acos (/ 1 a))))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (sqr (acos (/ 1 a)))))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ 1 a)) 3))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos (/ 1 a)) 3))) (+ (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (sqr (acos (/ 1 a))))) (+ (* (/ +nan.0 (sqr (acos (/ 1 a)))) (/ +nan.0 (acos (/ 1 a)))) (* (/ +nan.0 (pow (acos (/ 1 a)) 3)) 0)))) into (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 3))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 3)))) into (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 3))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (sqr (acos (/ 1 a))))) (+ (* 2 (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (pow (acos (/ 1 a)) 3)))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ 1 a)) 4))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos (/ 1 a)) 4))) (+ (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (pow (acos (/ 1 a)) 3))) (+ (* (/ +nan.0 (sqr (acos (/ 1 a)))) (/ +nan.0 (sqr (acos (/ 1 a))))) (+ (* (/ +nan.0 (pow (acos (/ 1 a)) 3)) (/ +nan.0 (acos (/ 1 a)))) (* (/ +nan.0 (pow (acos (/ 1 a)) 4)) 0))))) into (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 4))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 4)))) into (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 4))))
* [misc]backup-simplify:  Simplify (+ (* (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 4)))) (sqr (/ 1 a))) (+ (* (- (* +nan.0 (/ 1 (pow (acos (/ 1 a)) 3)))) (/ 1 a)) (- (* +nan.0 (/ 1 (sqr (acos (/ 1 a)))))))) into (- (+ (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 4) (sqr a)))) (- (+ (* +nan.0 (/ 1 (sqr (acos (/ 1 a))))) (- (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 3) a))))))))
* [misc]approximate:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ 1 (acos (/ -1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (sqr (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))))) in a
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ 1 (acos (/ -1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (* 0 0) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (acos (/ -1 a)))) (* (/ +nan.0 (acos (/ -1 a))) 0)) into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos (/ -1 a)))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos (/ -1 a))))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (sqr (acos (/ -1 a))))) (+ (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (acos (/ -1 a)))) (* (/ +nan.0 (sqr (acos (/ -1 a)))) 0))) into (- (* +nan.0 (/ 1 (sqr (acos (/ -1 a))))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (sqr (acos (/ -1 a)))))) into (- (* +nan.0 (/ 1 (sqr (acos (/ -1 a))))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (sqr (acos (/ -1 a)))))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ -1 a)) 3))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos (/ -1 a)) 3))) (+ (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (sqr (acos (/ -1 a))))) (+ (* (/ +nan.0 (sqr (acos (/ -1 a)))) (/ +nan.0 (acos (/ -1 a)))) (* (/ +nan.0 (pow (acos (/ -1 a)) 3)) 0)))) into (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 3))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 3)))) into (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 3))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (sqr (acos (/ -1 a))))) (+ (* 2 (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (pow (acos (/ -1 a)) 3)))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ -1 a)) 4))
* [misc]backup-simplify:  Simplify (+ (* 0 (/ +nan.0 (pow (acos (/ -1 a)) 4))) (+ (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (pow (acos (/ -1 a)) 3))) (+ (* (/ +nan.0 (sqr (acos (/ -1 a)))) (/ +nan.0 (sqr (acos (/ -1 a))))) (+ (* (/ +nan.0 (pow (acos (/ -1 a)) 3)) (/ +nan.0 (acos (/ -1 a)))) (* (/ +nan.0 (pow (acos (/ -1 a)) 4)) 0))))) into (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 4))))
* [misc]backup-simplify:  Simplify (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 4)))) into (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 4))))
* [misc]backup-simplify:  Simplify (+ (* (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 4)))) (sqr (/ 1 (- a)))) (+ (* (- (* +nan.0 (/ 1 (pow (acos (/ -1 a)) 3)))) (/ 1 (- a))) (- (* +nan.0 (/ 1 (sqr (acos (/ -1 a)))))))) into (- (+ (* +nan.0 (/ 1 (sqr (acos (/ -1 a))))) (- (+ (* +nan.0 (/ 1 (* (sqr a) (pow (acos (/ -1 a)) 4)))) (- (* +nan.0 (/ 1 (* a (pow (acos (/ -1 a)) 3)))))))))
* [misc]approximate:  Taking taylor expansion of (sqrt (/ a (- (acos a)))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (/ a (- (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos a)) (* 2 (sqrt 0))) into (/ +nan.0 (acos a))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ a (- (acos a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ a (- (acos a))) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]taylor:  Taking taylor expansion of (- (acos a)) in a
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos a))) into (/ -1 (acos a))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos a)) (* 2 (sqrt 0))) into (/ +nan.0 (acos a))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ +nan.0 (acos a)) into (/ +nan.0 (acos a))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos a))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos a)))
* [misc]backup-simplify:  Simplify (/ +nan.0 (sqr (acos a))) into (/ +nan.0 (sqr (acos a)))
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos a)) into (- (acos a))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos a))) (+ (* (/ -1 (acos a)) (/ 0 (- (acos a)))) (* 0 (/ 0 (- (acos a)))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos a)) (/ +nan.0 (sqr (acos a))))))) (* 2 0)) into (/ +nan.0 (pow (acos a) 3))
* [misc]backup-simplify:  Simplify (/ +nan.0 (pow (acos a) 3)) into (/ +nan.0 (pow (acos a) 3))
* [misc]backup-simplify:  Simplify (+ (* (/ +nan.0 (pow (acos a) 3)) (pow a 3)) (+ (* (/ +nan.0 (sqr (acos a))) (sqr a)) (* (/ +nan.0 (acos a)) a))) into (- (+ (* +nan.0 (/ (sqr a) (sqr (acos a)))) (- (+ (* +nan.0 (/ (pow a 3) (pow (acos a) 3))) (- (* +nan.0 (/ a (acos a))))))))
* [misc]approximate:  Taking taylor expansion of (sqrt (/ (/ 1 a) (- (acos (/ 1 a))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos (/ 1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ 1 a)))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 a) (- (acos (/ 1 a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 a) (- (acos (/ 1 a)))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (/ 1 1) into 1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 a))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (/ 1 (- (acos (/ 1 a)))) into (/ -1 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ -1 (acos (/ 1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ +nan.0 (acos (/ 1 a))) into (/ +nan.0 (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos (/ 1 a)))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos (/ 1 a))))
* [misc]backup-simplify:  Simplify (/ +nan.0 (sqr (acos (/ 1 a)))) into (/ +nan.0 (sqr (acos (/ 1 a))))
* [misc]backup-simplify:  Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ 1 a))) into (- (acos (/ 1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ 1 a)))) (+ (* (/ -1 (acos (/ 1 a))) (/ 0 (- (acos (/ 1 a))))) (* 0 (/ 0 (- (acos (/ 1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos (/ 1 a))) (/ +nan.0 (sqr (acos (/ 1 a)))))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ 1 a)) 3))
* [misc]backup-simplify:  Simplify (/ +nan.0 (pow (acos (/ 1 a)) 3)) into (/ +nan.0 (pow (acos (/ 1 a)) 3))
* [misc]backup-simplify:  Simplify (+ (* (/ +nan.0 (pow (acos (/ 1 a)) 3)) (sqr (/ 1 a))) (+ (* (/ +nan.0 (sqr (acos (/ 1 a)))) (/ 1 a)) (/ +nan.0 (acos (/ 1 a))))) into (- (+ (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 3) (sqr a)))) (- (+ (* +nan.0 (/ 1 (* (sqr (acos (/ 1 a))) a))) (- (* +nan.0 (/ 1 (acos (/ 1 a)))))))))
* [misc]approximate:  Taking taylor expansion of (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ 1 (acos (/ -1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ -1 a)))
* [misc]taylor:  Taking taylor expansion of (sqrt (/ (/ 1 (- a)) (- (acos (/ 1 (- a)))))) in a
* [misc]taylor:  Taking taylor expansion of (/ (/ 1 (- a)) (- (acos (/ 1 (- a))))) in a
* [misc]taylor:  Taking taylor expansion of (/ 1 (- a)) in a
* [misc]taylor:  Taking taylor expansion of (- a) in a
* [misc]taylor:  Taking taylor expansion of a in a
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 1 into 1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (/ 1 -1) into -1
* [misc]taylor:  Taking taylor expansion of (- (acos (/ 1 (- a)))) in a
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (/ -1 (- (acos (/ -1 a)))) into (/ 1 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (sqrt 0) into 0
* [misc]backup-simplify:  Simplify (/ (/ 1 (acos (/ -1 a))) (* 2 (sqrt 0))) into (/ +nan.0 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (/ +nan.0 (acos (/ -1 a))) into (/ +nan.0 (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (sqr (/ +nan.0 (acos (/ -1 a)))) (+)) (* 2 0)) into (/ +nan.0 (sqr (acos (/ -1 a))))
* [misc]backup-simplify:  Simplify (/ +nan.0 (sqr (acos (/ -1 a)))) into (/ +nan.0 (sqr (acos (/ -1 a))))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- 1) into -1
* [misc]backup-simplify:  Simplify (- (+ (* -1 (/ 0 -1)) (* 0 (/ 0 -1)))) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- 0) into 0
* [misc]backup-simplify:  Simplify (- (acos (/ -1 a))) into (- (acos (/ -1 a)))
* [misc]backup-simplify:  Simplify (- (/ 0 (- (acos (/ -1 a)))) (+ (* (/ 1 (acos (/ -1 a))) (/ 0 (- (acos (/ -1 a))))) (* 0 (/ 0 (- (acos (/ -1 a))))))) into 0
* [misc]backup-simplify:  Simplify (/ (- 0 (+ (* 2 (* (/ +nan.0 (acos (/ -1 a))) (/ +nan.0 (sqr (acos (/ -1 a)))))))) (* 2 0)) into (/ +nan.0 (pow (acos (/ -1 a)) 3))
* [misc]backup-simplify:  Simplify (/ +nan.0 (pow (acos (/ -1 a)) 3)) into (/ +nan.0 (pow (acos (/ -1 a)) 3))
* [misc]backup-simplify:  Simplify (+ (* (/ +nan.0 (pow (acos (/ -1 a)) 3)) (sqr (/ 1 (- a)))) (+ (* (/ +nan.0 (sqr (acos (/ -1 a)))) (/ 1 (- a))) (/ +nan.0 (acos (/ -1 a))))) into (- (+ (* +nan.0 (/ 1 (* a (sqr (acos (/ -1 a)))))) (- (+ (* +nan.0 (/ 1 (* (sqr a) (pow (acos (/ -1 a)) 3)))) (- (* +nan.0 (/ 1 (acos (/ -1 a)))))))))
* [misc]approximate:  Taking taylor expansion of (acos a) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]taylor:  Taking taylor expansion of (acos a) in a
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos a) into (acos a)
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 a)) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 a)) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ 1 a)) into (acos (/ 1 a))
* [misc]approximate:  Taking taylor expansion of (acos (/ 1 (- a))) in (a) around 0
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]taylor:  Taking taylor expansion of (acos (/ 1 (- a))) in a
* [misc]backup-simplify:  Simplify (acos (/ 1 (- a))) into (acos (/ -1 a))
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* [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]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify 0 into 0
* [misc]backup-simplify:  Simplify (acos (/ -1 a)) into (acos (/ -1 a))
* * * [misc]progress:  simplifying alt 1 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos a)))
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (12 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 2 of 48
* [enter]simplify:  Simplifying (/ -1 (* (acos (/ 1 a)) a))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* [exit]simplify:  Simplified to (/ (/ -1 (acos (/ 1 a))) a)
* [misc]none:  prog is (λ (a) (/ (/ -1 (acos (/ 1 a))) a))
* * * [misc]progress:  simplifying alt 3 of 48
* [enter]simplify:  Simplifying (/ 1 (* a (acos (/ -1 a))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (/ 1 a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 4 of 48
* [enter]simplify:  Simplifying (cbrt (cube (* -1 (/ a (acos a)))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 5 of 48
* [enter]simplify:  Simplifying (cbrt (cube (* -1 (/ a (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (20 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ 1 a))))
* * * [misc]progress:  simplifying alt 6 of 48
* [enter]simplify:  Simplifying (cbrt (cube (* -1 (/ a (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (17 enodes)
* * [misc]simplify:  iters left: 1 (41 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 7 of 48
* [enter]simplify:  Simplifying (cbrt (cube (* -1 (/ a (acos a)))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (16 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 8 of 48
* [enter]simplify:  Simplifying (cbrt (cube (/ -1 (* (acos (/ 1 a)) a))))
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (/ -1 (* (acos (/ 1 a)) a))
* [misc]none:  prog is (λ (a) (/ -1 (* (acos (/ 1 a)) a)))
* * * [misc]progress:  simplifying alt 9 of 48
* [enter]simplify:  Simplifying (cbrt (cube (/ 1 (* a (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (19 enodes)
* * [misc]simplify:  iters left: 1 (44 enodes)
* [exit]simplify:  Simplified to (/ (/ 1 a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (/ 1 a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 10 of 48
* [enter]simplify:  Simplifying (cbrt (cube (/ a (- (acos a)))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (28 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 11 of 48
* [enter]simplify:  Simplifying (cbrt (cube (/ a (- (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (32 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 12 of 48
* [enter]simplify:  Simplifying (cbrt (cube (/ a (- (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* * [misc]simplify:  iters left: 1 (30 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 13 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 14 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (15 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 15 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 16 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos a)))
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (12 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 17 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ 1 a))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ 1 a))))
* * * [misc]progress:  simplifying alt 18 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ -1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 19 of 48
* [enter]simplify:  Simplifying (/ a (- (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 20 of 48
* [enter]simplify:  Simplifying (/ a (- (acos (/ 1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 21 of 48
* [enter]simplify:  Simplifying (/ a (- (acos (/ -1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 22 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqr (sqrt (sqrt (acos a)))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 23 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqr (sqrt (sqrt (acos (/ 1 a))))))))
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (14 enodes)
* * [misc]simplify:  iters left: 1 (20 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 24 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqr (sqrt (sqrt (acos (/ -1 a))))))))
* * [misc]simplify:  iters left: 3 (10 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 25 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos a)))
* * [misc]simplify:  iters left: 3 (5 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (12 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 26 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ 1 a))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (13 enodes)
* * [misc]simplify:  iters left: 1 (16 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ 1 a))))
* * * [misc]progress:  simplifying alt 27 of 48
* [enter]simplify:  Simplifying (* -1 (/ a (acos (/ -1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (10 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 28 of 48
* [enter]simplify:  Simplifying (/ a (- (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 29 of 48
* [enter]simplify:  Simplifying (/ a (- (acos (/ 1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 30 of 48
* [enter]simplify:  Simplifying (/ a (- (acos (/ -1 a))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 31 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 32 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (15 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 33 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 34 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos a)))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* * [misc]simplify:  iters left: 1 (11 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 35 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (15 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 36 of 48
* [enter]simplify:  Simplifying (/ a (- (sqr (sqrt (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (13 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* * * [misc]progress:  simplifying alt 37 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (* -1 (/ a (acos a)))))
* * [misc]simplify:  iters left: 3 (7 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (17 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos a))
* [misc]none:  prog is (λ (a) (/ (- a) (acos a)))
* * * [misc]progress:  simplifying alt 38 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (* -1 (/ a (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (9 enodes)
* * [misc]simplify:  iters left: 2 (15 enodes)
* * [misc]simplify:  iters left: 1 (21 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ 1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ 1 a))))
* * * [misc]progress:  simplifying alt 39 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (* -1 (/ a (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (12 enodes)
* * [misc]simplify:  iters left: 1 (18 enodes)
* [exit]simplify:  Simplified to (/ (- a) (acos (/ -1 a)))
* [misc]none:  prog is (λ (a) (/ (- a) (acos (/ -1 a))))
* * * [misc]progress:  simplifying alt 40 of 48
* [enter]simplify:  Simplifying (- (+ (* +nan.0 (/ (sqr a) (sqr (acos a)))) (- (+ (* +nan.0 (/ (pow a 4) (pow (acos a) 4))) (- (* +nan.0 (/ (pow a 3) (pow (acos a) 3))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 41 of 48
* [enter]simplify:  Simplifying (- (+ (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 4) (sqr a)))) (- (+ (* +nan.0 (/ 1 (sqr (acos (/ 1 a))))) (- (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 3) a))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 42 of 48
* [enter]simplify:  Simplifying (- (+ (* +nan.0 (/ 1 (sqr (acos (/ -1 a))))) (- (+ (* +nan.0 (/ 1 (* (sqr a) (pow (acos (/ -1 a)) 4)))) (- (* +nan.0 (/ 1 (* a (pow (acos (/ -1 a)) 3)))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 43 of 48
* [enter]simplify:  Simplifying (sqr (- (+ (* +nan.0 (/ (sqr a) (sqr (acos a)))) (- (+ (* +nan.0 (/ (pow a 3) (pow (acos a) 3))) (- (* +nan.0 (/ a (acos a)))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 44 of 48
* [enter]simplify:  Simplifying (sqr (- (+ (* +nan.0 (/ 1 (* (pow (acos (/ 1 a)) 3) (sqr a)))) (- (+ (* +nan.0 (/ 1 (* (sqr (acos (/ 1 a))) a))) (- (* +nan.0 (/ 1 (acos (/ 1 a))))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 45 of 48
* [enter]simplify:  Simplifying (sqr (- (+ (* +nan.0 (/ 1 (* a (sqr (acos (/ -1 a)))))) (- (+ (* +nan.0 (/ 1 (* (sqr a) (pow (acos (/ -1 a)) 3)))) (- (* +nan.0 (/ 1 (acos (/ -1 a))))))))))
* [misc]none:  prog is (λ (a) +nan.0)
* * * [misc]progress:  simplifying alt 46 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (/ a (- (acos a)))))
* * [misc]simplify:  iters left: 3 (6 enodes)
* * [misc]simplify:  iters left: 2 (7 enodes)
* * [misc]simplify:  iters left: 1 (8 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos a)))
* [misc]none:  prog is (λ (a) (/ a (- (acos a))))
* * * [misc]progress:  simplifying alt 47 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (/ a (- (acos (/ 1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (11 enodes)
* * [misc]simplify:  iters left: 1 (12 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ 1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ 1 a)))))
* * * [misc]progress:  simplifying alt 48 of 48
* [enter]simplify:  Simplifying (sqr (sqrt (/ a (- (acos (/ -1 a))))))
* * [misc]simplify:  iters left: 3 (8 enodes)
* * [misc]simplify:  iters left: 2 (9 enodes)
* * [misc]simplify:  iters left: 1 (10 enodes)
* [exit]simplify:  Simplified to (/ a (- (acos (/ -1 a))))
* [misc]none:  prog is (λ (a) (/ a (- (acos (/ -1 a)))))
* [misc]progress:  [Phase 3 of 3] Extracting.
* * [misc]regime-changes:  Finding splitpoints for: (#<alt-delta (λ (a) (cbrt (cube (/ a (- (acos a))))))> #<alt-delta (λ (a) (/ a (- (sqr (sqr (sqrt (sqrt (acos a))))))))> #<alt-delta (λ (a) (/ a (- (sqr (sqrt (acos a))))))> #<alt-delta (λ (a) (sqr (sqrt (/ a (- (acos a))))))>)
* [misc]regimes:  Found splitpoints: (#s(sp 0 a +inf.0)) , with alts (#<alt-delta (λ (a) (/ a (- (sqr (sqrt (acos a))))))>)
* [enter]simplify:  Simplifying (cube (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* * [misc]simplify:  iters left: 5 (10 enodes)
* * [misc]simplify:  iters left: 4 (22 enodes)
* * [misc]simplify:  iters left: 3 (36 enodes)
* * [misc]simplify:  iters left: 2 (64 enodes)
* * [misc]simplify:  iters left: 1 (113 enodes)
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* [exit]simplify:  Simplified to (cube (/ a (- (acos a))))
* [enter]simplify:  Simplifying (sqrt (sqrt (acos a)))
* * [misc]simplify:  iters left: 3 (4 enodes)
* [exit]simplify:  Simplified to (sqrt (sqrt (acos a)))
* [exit]simplify:  Simplified to (sqrt (sqrt (acos a)))
* [enter]simplify:  Simplifying (sqrt (acos a))
* * [misc]simplify:  iters left: 2 (3 enodes)
* [exit]simplify:  Simplified to (sqrt (acos a))
* [exit]simplify:  Simplified to (sqrt (acos a))
* [enter]simplify:  Simplifying (sqrt (/ a (- (acos a))))
* * [misc]simplify:  iters left: 6 (5 enodes)
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))
* [exit]simplify:  Simplified to (sqrt (/ a (- (acos a))))