18.192 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.022 * * * [progress]: [2/2] Setting up program.
0.025 * [progress]: [Phase 2 of 3] Improving.
0.025 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.147 * * [simplify]: iteration  0 :  4897  enodes  (cost  15 )
0.147 * * [simplify]: iteration  1 :  4897  enodes  (cost  15 )
0.147 * [simplify]: Simplified to:
   (* (- x y) (/ (+ x y) (+ (* x x) (* y y))))
0.151 * * [progress]: iteration 1 / 4
0.151 * * * [progress]: picking best candidate
0.155 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
0.155 * * * [progress]: localizing error
0.163 * * * [progress]: generating rewritten candidates
0.163 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.175 * * * [progress]: generating series expansions
0.175 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.175 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
0.175 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
0.175 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.175 * [taylor]: Taking taylor expansion of (+ x y) in y
0.175 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.175 * [taylor]: Taking taylor expansion of (- x y) in y
0.175 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.175 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.175 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.175 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.175 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.175 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.175 * [taylor]: Taking taylor expansion of (+ x y) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.175 * [taylor]: Taking taylor expansion of (- x y) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.175 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.175 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.176 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.176 * [taylor]: Taking taylor expansion of (+ x y) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.176 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (- x y) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.176 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.176 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.176 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.176 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of -1 in y
0.176 * [taylor]: Taking taylor expansion of 0 in y
0.177 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.177 * [taylor]: Taking taylor expansion of 2 in y
0.177 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.177 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.177 * [taylor]: Taking taylor expansion of y in y
0.177 * [taylor]: Taking taylor expansion of 0 in y
0.178 * [approximate]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.178 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.178 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.178 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.178 * [taylor]: Taking taylor expansion of x in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.178 * [taylor]: Taking taylor expansion of y in y
0.178 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.178 * [taylor]: Taking taylor expansion of y in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.178 * [taylor]: Taking taylor expansion of x in y
0.178 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.178 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.178 * [taylor]: Taking taylor expansion of x in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.178 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.178 * [taylor]: Taking taylor expansion of y in y
0.178 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.178 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.178 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.178 * [taylor]: Taking taylor expansion of x in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.178 * [taylor]: Taking taylor expansion of y in x
0.178 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.178 * [taylor]: Taking taylor expansion of y in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.178 * [taylor]: Taking taylor expansion of x in x
0.178 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.178 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.178 * [taylor]: Taking taylor expansion of x in x
0.178 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.178 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.178 * [taylor]: Taking taylor expansion of y in x
0.179 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.179 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.179 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.179 * [taylor]: Taking taylor expansion of x in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.179 * [taylor]: Taking taylor expansion of y in x
0.179 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.179 * [taylor]: Taking taylor expansion of y in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.179 * [taylor]: Taking taylor expansion of x in x
0.179 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.179 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.179 * [taylor]: Taking taylor expansion of x in x
0.179 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.179 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.179 * [taylor]: Taking taylor expansion of y in x
0.179 * [taylor]: Taking taylor expansion of 1 in y
0.179 * [taylor]: Taking taylor expansion of 0 in y
0.180 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.180 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.180 * [taylor]: Taking taylor expansion of 2 in y
0.180 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.180 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.180 * [taylor]: Taking taylor expansion of y in y
0.181 * [taylor]: Taking taylor expansion of 0 in y
0.181 * [approximate]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in (x y) around 0
0.181 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
0.181 * [taylor]: Taking taylor expansion of -1 in y
0.181 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.181 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.181 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.181 * [taylor]: Taking taylor expansion of y in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.181 * [taylor]: Taking taylor expansion of x in y
0.181 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.181 * [taylor]: Taking taylor expansion of y in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.181 * [taylor]: Taking taylor expansion of x in y
0.181 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.181 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.181 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.182 * [taylor]: Taking taylor expansion of x in y
0.182 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.182 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.182 * [taylor]: Taking taylor expansion of y in y
0.182 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.182 * [taylor]: Taking taylor expansion of -1 in x
0.182 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.182 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.182 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.182 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.182 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.182 * [taylor]: Taking taylor expansion of -1 in x
0.182 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.182 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.182 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.182 * [taylor]: Taking taylor expansion of x in x
0.182 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.182 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.182 * [taylor]: Taking taylor expansion of y in x
0.183 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.183 * [taylor]: Taking taylor expansion of x in x
0.183 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.183 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.183 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.183 * [taylor]: Taking taylor expansion of x in x
0.183 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.183 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.183 * [taylor]: Taking taylor expansion of y in x
0.183 * [taylor]: Taking taylor expansion of 1 in y
0.183 * [taylor]: Taking taylor expansion of 0 in y
0.184 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.184 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.184 * [taylor]: Taking taylor expansion of 2 in y
0.184 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.184 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.184 * [taylor]: Taking taylor expansion of y in y
0.185 * [taylor]: Taking taylor expansion of 0 in y
0.185 * * * [progress]: simplifying candidates
0.185 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (+ (log (- x y)) (log (+ x y))) (log (+ (* x x) (* y y))))
  (- (log (* (- x y) (+ x y))) (log (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (- x y)) (- x y)) (* (* (+ x y) (+ x y)) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (/ (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y))) (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))))
  (* (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))))
  (cbrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (* (* (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (neg (* (- x y) (+ x y)))
  (neg (+ (* x x) (* y y)))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) 1)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ (* (- x y) (+ x y)) (- (* (* x x) (* x x)) (* (* y y) (* y y))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (+ (* y y) (* x y))) (- x y)))
  (* (+ (* x x) (* y y)) (* (+ x y) (+ (* x x) (- (* y y) (* x y)))))
  (* (+ (* x x) (* y y)) (* (+ x y) (- x y)))
  (* (+ (* x x) (* y y)) (+ (* x x) (- (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* x x) (* y y)) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (* x x) (* y y)) (+ x y))
  -1
  1
  1
0.199 * * [simplify]: iteration  0 :  5037  enodes  (cost  530 )
0.201 * [simplify]: Simplified to:
   (log (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (log (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (log (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (pow (exp (/ (- x y) (+ (* x x) (* y y)))) (+ x y))
  (pow (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)) 3)
  (pow (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)) 3)
  (* (cbrt (* (/ (+ x y) (+ (* x x) (* y y))) (- x y))) (cbrt (* (/ (+ x y) (+ (* x x) (* y y))) (- x y))))
  (cbrt (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (pow (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)) 3)
  (sqrt (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (sqrt (* (/ (+ x y) (+ (* x x) (* y y))) (- x y)))
  (* (+ x y) (- y x))
  (- (* x (neg x)) (* y y))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (+ x y) (cbrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (+ x y) (sqrt (+ (* x x) (* y y))))
  (- x y)
  (/ (+ x y) (+ (* x x) (* y y)))
  (/ 1 (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (* (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))) (+ x y))
  (* (/ (- x y) (sqrt (+ (* x x) (* y y)))) (+ x y))
  (- (* x x) (* y y))
  (/ (+ (* x x) (* y y)) (+ x y))
  (* (/ (- x y) (+ (pow x 6) (pow y 6))) (+ x y))
  (* (/ (- x y) (- (pow x 4) (pow y 4))) (+ x y))
  (* (+ (* x x) (* y y)) (* (+ (* x x) (* y (+ x y))) (+ (* x x) (* y (- y x)))))
  (* (- x y) (* (+ (* x x) (* y y)) (+ (* x x) (* y (+ x y)))))
  (* (+ x y) (* (+ (* x x) (* y y)) (+ (* x x) (* y (- y x)))))
  (- (pow x 4) (pow y 4))
  (* (+ (* x x) (* y y)) (+ (* x x) (* y (- y x))))
  (* (- x y) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (+ (* x x) (* y (+ x y))))
  (* (+ x y) (+ (* x x) (* y y)))
  -1
  1
  1
0.202 * * * [progress]: adding candidates to table
0.245 * * [progress]: iteration 2 / 4
0.245 * * * [progress]: picking best candidate
0.251 * * * * [pick]: Picked  #<alt (λ (x y) -1)>
0.251 * * * [progress]: localizing error
0.251 * * * [progress]: generating rewritten candidates
0.251 * * * [progress]: generating series expansions
0.251 * * * [progress]: simplifying candidates
0.252 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.254 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.254 * [simplify]: Simplified to:
   
0.254 * * * [progress]: adding candidates to table
0.254 * * [progress]: iteration 3 / 4
0.254 * * * [progress]: picking best candidate
0.258 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))>
0.258 * * * [progress]: localizing error
0.268 * * * [progress]: generating rewritten candidates
0.268 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.276 * * * * [progress]: [ 2 / 2 ] rewriting at (2)
0.296 * * * [progress]: generating series expansions
0.296 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.296 * [approximate]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in (x y) around 0
0.296 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in y
0.296 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.296 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.296 * [taylor]: Taking taylor expansion of x in y
0.296 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.296 * [taylor]: Taking taylor expansion of y in y
0.296 * [taylor]: Taking taylor expansion of (+ x y) in y
0.296 * [taylor]: Taking taylor expansion of x in y
0.296 * [taylor]: Taking taylor expansion of y in y
0.297 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in x
0.297 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.297 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.297 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.297 * [taylor]: Taking taylor expansion of (+ x y) in x
0.297 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.297 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (+ x y)) in x
0.297 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.297 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.297 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.297 * [taylor]: Taking taylor expansion of (+ x y) in x
0.297 * [taylor]: Taking taylor expansion of x in x
0.297 * [taylor]: Taking taylor expansion of y in x
0.297 * [taylor]: Taking taylor expansion of y in y
0.297 * [taylor]: Taking taylor expansion of (neg 1) in y
0.297 * [taylor]: Taking taylor expansion of 1 in y
0.298 * [taylor]: Taking taylor expansion of (* 2 (/ 1 y)) in y
0.298 * [taylor]: Taking taylor expansion of 2 in y
0.298 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.298 * [taylor]: Taking taylor expansion of y in y
0.298 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.298 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.298 * [taylor]: Taking taylor expansion of 2 in y
0.298 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.298 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.298 * [taylor]: Taking taylor expansion of y in y
0.298 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
0.299 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.299 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.299 * [taylor]: Taking taylor expansion of x in y
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.299 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.299 * [taylor]: Taking taylor expansion of y in y
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.299 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.299 * [taylor]: Taking taylor expansion of y in y
0.299 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.299 * [taylor]: Taking taylor expansion of x in y
0.299 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.299 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.299 * [taylor]: Taking taylor expansion of x in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.299 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.299 * [taylor]: Taking taylor expansion of y in x
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.299 * [taylor]: Taking taylor expansion of y in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.299 * [taylor]: Taking taylor expansion of x in x
0.299 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.299 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.299 * [taylor]: Taking taylor expansion of x in x
0.299 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.299 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.299 * [taylor]: Taking taylor expansion of y in x
0.299 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.300 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.300 * [taylor]: Taking taylor expansion of y in x
0.300 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.300 * [taylor]: Taking taylor expansion of x in x
0.300 * [taylor]: Taking taylor expansion of 1 in y
0.300 * [taylor]: Taking taylor expansion of (neg (/ 1 y)) in y
0.300 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.300 * [taylor]: Taking taylor expansion of y in y
0.301 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.301 * [taylor]: Taking taylor expansion of 2 in y
0.301 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.301 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.301 * [taylor]: Taking taylor expansion of y in y
0.301 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 3)))) in y
0.301 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 3))) in y
0.301 * [taylor]: Taking taylor expansion of 2 in y
0.301 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.301 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.301 * [taylor]: Taking taylor expansion of y in y
0.302 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in (x y) around 0
0.302 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in y
0.302 * [taylor]: Taking taylor expansion of -1 in y
0.302 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in y
0.302 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.302 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.302 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.302 * [taylor]: Taking taylor expansion of x in y
0.302 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.302 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.302 * [taylor]: Taking taylor expansion of y in y
0.302 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.302 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.302 * [taylor]: Taking taylor expansion of y in y
0.302 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.302 * [taylor]: Taking taylor expansion of x in y
0.303 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.303 * [taylor]: Taking taylor expansion of -1 in x
0.303 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.303 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.303 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.303 * [taylor]: Taking taylor expansion of x in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.303 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.303 * [taylor]: Taking taylor expansion of y in x
0.303 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.303 * [taylor]: Taking taylor expansion of y in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.303 * [taylor]: Taking taylor expansion of x in x
0.303 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x)))) in x
0.303 * [taylor]: Taking taylor expansion of -1 in x
0.303 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (+ (/ 1 y) (/ 1 x))) in x
0.303 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.303 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.303 * [taylor]: Taking taylor expansion of x in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.303 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.303 * [taylor]: Taking taylor expansion of y in x
0.303 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.303 * [taylor]: Taking taylor expansion of y in x
0.303 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.303 * [taylor]: Taking taylor expansion of x in x
0.303 * [taylor]: Taking taylor expansion of -1 in y
0.304 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.304 * [taylor]: Taking taylor expansion of y in y
0.304 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.304 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.304 * [taylor]: Taking taylor expansion of 2 in y
0.304 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.304 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.304 * [taylor]: Taking taylor expansion of y in y
0.305 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 3))) in y
0.305 * [taylor]: Taking taylor expansion of 2 in y
0.305 * [taylor]: Taking taylor expansion of (/ 1 (pow y 3)) in y
0.305 * [taylor]: Taking taylor expansion of (pow y 3) in y
0.305 * [taylor]: Taking taylor expansion of y in y
0.306 * * * * [progress]: [ 2 / 2 ] generating series at (2)
0.306 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
0.306 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
0.306 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.306 * [taylor]: Taking taylor expansion of (+ x y) in y
0.306 * [taylor]: Taking taylor expansion of x in y
0.306 * [taylor]: Taking taylor expansion of y in y
0.306 * [taylor]: Taking taylor expansion of (- x y) in y
0.306 * [taylor]: Taking taylor expansion of x in y
0.306 * [taylor]: Taking taylor expansion of y in y
0.306 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.306 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.306 * [taylor]: Taking taylor expansion of x in y
0.306 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.306 * [taylor]: Taking taylor expansion of y in y
0.306 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.306 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.306 * [taylor]: Taking taylor expansion of (+ x y) in x
0.306 * [taylor]: Taking taylor expansion of x in x
0.306 * [taylor]: Taking taylor expansion of y in x
0.306 * [taylor]: Taking taylor expansion of (- x y) in x
0.306 * [taylor]: Taking taylor expansion of x in x
0.306 * [taylor]: Taking taylor expansion of y in x
0.306 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.306 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.306 * [taylor]: Taking taylor expansion of x in x
0.306 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.306 * [taylor]: Taking taylor expansion of y in x
0.307 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.307 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.307 * [taylor]: Taking taylor expansion of (+ x y) in x
0.307 * [taylor]: Taking taylor expansion of x in x
0.307 * [taylor]: Taking taylor expansion of y in x
0.307 * [taylor]: Taking taylor expansion of (- x y) in x
0.307 * [taylor]: Taking taylor expansion of x in x
0.307 * [taylor]: Taking taylor expansion of y in x
0.307 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.307 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.307 * [taylor]: Taking taylor expansion of x in x
0.307 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.307 * [taylor]: Taking taylor expansion of y in x
0.307 * [taylor]: Taking taylor expansion of -1 in y
0.307 * [taylor]: Taking taylor expansion of 0 in y
0.308 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.308 * [taylor]: Taking taylor expansion of 2 in y
0.308 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.308 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.308 * [taylor]: Taking taylor expansion of y in y
0.308 * [taylor]: Taking taylor expansion of 0 in y
0.308 * [approximate]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in (x y) around 0
0.308 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.309 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.309 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.309 * [taylor]: Taking taylor expansion of x in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.309 * [taylor]: Taking taylor expansion of y in y
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.309 * [taylor]: Taking taylor expansion of y in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.309 * [taylor]: Taking taylor expansion of x in y
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.309 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.309 * [taylor]: Taking taylor expansion of x in y
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.309 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.309 * [taylor]: Taking taylor expansion of y in y
0.309 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.309 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.309 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.309 * [taylor]: Taking taylor expansion of y in x
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.309 * [taylor]: Taking taylor expansion of y in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.309 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.309 * [taylor]: Taking taylor expansion of x in x
0.309 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.309 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.309 * [taylor]: Taking taylor expansion of y in x
0.310 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.310 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.310 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.310 * [taylor]: Taking taylor expansion of y in x
0.310 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.310 * [taylor]: Taking taylor expansion of y in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.310 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.310 * [taylor]: Taking taylor expansion of x in x
0.310 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.310 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.310 * [taylor]: Taking taylor expansion of y in x
0.310 * [taylor]: Taking taylor expansion of 1 in y
0.310 * [taylor]: Taking taylor expansion of 0 in y
0.311 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.311 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.311 * [taylor]: Taking taylor expansion of 2 in y
0.311 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.311 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.311 * [taylor]: Taking taylor expansion of y in y
0.312 * [taylor]: Taking taylor expansion of 0 in y
0.312 * [approximate]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in (x y) around 0
0.312 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
0.312 * [taylor]: Taking taylor expansion of -1 in y
0.312 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.312 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.312 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.312 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.312 * [taylor]: Taking taylor expansion of y in y
0.312 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.312 * [taylor]: Taking taylor expansion of x in y
0.312 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.312 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.312 * [taylor]: Taking taylor expansion of y in y
0.312 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.312 * [taylor]: Taking taylor expansion of x in y
0.312 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.312 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.312 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.312 * [taylor]: Taking taylor expansion of x in y
0.313 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.313 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.313 * [taylor]: Taking taylor expansion of y in y
0.313 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.313 * [taylor]: Taking taylor expansion of -1 in x
0.313 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.313 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.313 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.313 * [taylor]: Taking taylor expansion of y in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.313 * [taylor]: Taking taylor expansion of x in x
0.313 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.313 * [taylor]: Taking taylor expansion of y in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.313 * [taylor]: Taking taylor expansion of x in x
0.313 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.313 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.313 * [taylor]: Taking taylor expansion of x in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.313 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.313 * [taylor]: Taking taylor expansion of y in x
0.313 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.313 * [taylor]: Taking taylor expansion of -1 in x
0.313 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.313 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.313 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.313 * [taylor]: Taking taylor expansion of y in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.313 * [taylor]: Taking taylor expansion of x in x
0.313 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.313 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.313 * [taylor]: Taking taylor expansion of y in x
0.314 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.314 * [taylor]: Taking taylor expansion of x in x
0.314 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.314 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.314 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.314 * [taylor]: Taking taylor expansion of x in x
0.314 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.314 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.314 * [taylor]: Taking taylor expansion of y in x
0.314 * [taylor]: Taking taylor expansion of 1 in y
0.314 * [taylor]: Taking taylor expansion of 0 in y
0.315 * [taylor]: Taking taylor expansion of (neg (* 2 (/ 1 (pow y 2)))) in y
0.315 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.315 * [taylor]: Taking taylor expansion of 2 in y
0.315 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.315 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.315 * [taylor]: Taking taylor expansion of y in y
0.316 * [taylor]: Taking taylor expansion of 0 in y
0.316 * * * [progress]: simplifying candidates
0.318 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (* x x) (* y y))) (log (+ x y)))
  (log (/ (+ (* x x) (* y y)) (+ x y)))
  (exp (/ (+ (* x x) (* y y)) (+ x y)))
  (/ (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y))) (* (* (+ x y) (+ x y)) (+ x y)))
  (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (cbrt (/ (+ (* x x) (* y y)) (+ x y)))
  (* (* (/ (+ (* x x) (* y y)) (+ x y)) (/ (+ (* x x) (* y y)) (+ x y))) (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (sqrt (/ (+ (* x x) (* y y)) (+ x y)))
  (neg (+ (* x x) (* y y)))
  (neg (+ x y))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y)))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) (sqrt (+ x y)))
  (/ (cbrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1)
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (/ (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))) 1)
  (/ (cbrt (+ (* x x) (* y y))) (+ x y))
  (/ (sqrt (+ (* x x) (* y y))) (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (sqrt (+ (* x x) (* y y))) (cbrt (+ x y)))
  (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (/ (sqrt (+ (* x x) (* y y))) (sqrt (+ x y)))
  (/ (sqrt (+ (* x x) (* y y))) 1)
  (/ (sqrt (+ (* x x) (* y y))) (+ x y))
  (/ (sqrt (+ (* x x) (* y y))) 1)
  (/ (sqrt (+ (* x x) (* y y))) (+ x y))
  (/ 1 (* (cbrt (+ x y)) (cbrt (+ x y))))
  (/ (+ (* x x) (* y y)) (cbrt (+ x y)))
  (/ 1 (sqrt (+ x y)))
  (/ (+ (* x x) (* y y)) (sqrt (+ x y)))
  (/ 1 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ 1 1)
  (/ (+ (* x x) (* y y)) (+ x y))
  (/ 1 (+ x y))
  (/ (+ x y) (+ (* x x) (* y y)))
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0.362 * * [simplify]: iteration  0 :  5047  enodes  (cost  4151 )
0.373 * [simplify]: Simplified to:
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  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (* (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y))))))
  (* (cbrt (+ x y)) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (* (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y))))))
  (* (sqrt (+ x y)) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (cbrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (* (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))) (cbrt (- x y))))
  (* (cbrt (+ x y)) (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (* (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))) (cbrt (- x y))))
  (* (sqrt (+ x y)) (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))) (cbrt (- x y)))
  (* (+ x y) (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))) (cbrt (- x y)))
  (* (+ x y) (/ (cbrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (cbrt (+ x y)) (/ (cbrt (- x y)) (+ (* x x) (* y y))))
  (* (sqrt (+ x y)) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (sqrt (+ x y)) (/ (cbrt (- x y)) (+ (* x x) (* y y))))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (* (+ x y) (/ (cbrt (- x y)) (+ (* x x) (* y y))))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (* (+ x y) (/ (cbrt (- x y)) (+ (* x x) (* y y))))
  (* (cbrt (- x y)) (cbrt (- x y)))
  (* (+ x y) (/ (cbrt (- x y)) (+ (* x x) (* y y))))
  (* (/ (cbrt (- x y)) (+ (* x x) (* y y))) (cbrt (- x y)))
  (* (+ x y) (cbrt (- x y)))
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  (/ (cbrt (- x y)) (+ (* x x) (* y (- y x))))
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  (/ (cbrt (- x y)) (- x y))
  (/ (sqrt (- x y)) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (sqrt (- x y)) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (sqrt (- x y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (sqrt (- x y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))))
  (* (cbrt (+ x y)) (/ (sqrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))))
  (* (sqrt (+ x y)) (/ (sqrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (sqrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (sqrt (- x y)) (cbrt (+ (* x x) (* y y)))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (cbrt (+ x y)) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y))))
  (* (+ x y) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y))))
  (* (+ x y) (/ (sqrt (- x y)) (sqrt (+ (* x x) (* y y)))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (- x y)))
  (* (cbrt (+ x y)) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (sqrt (- x y))
  (* (+ x y) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (sqrt (- x y))
  (* (+ x y) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (sqrt (- x y))
  (* (+ x y) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (/ (sqrt (- x y)) (+ (* x x) (* y y)))
  (* (+ x y) (sqrt (- x y)))
  (* (+ (pow x 3) (pow y 3)) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (/ (sqrt (- x y)) (+ (* x x) (* y (- y x))))
  (* (- (* x x) (* y y)) (/ (sqrt (- x y)) (+ (* x x) (* y y))))
  (/ (sqrt (- x y)) (- x y))
  (/ 1 (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ 1 (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (* (/ (cbrt (+ x y)) (cbrt (+ (* x x) (* y y)))) (/ (cbrt (+ x y)) (cbrt (+ (* x x) (* y y)))))
  (* (cbrt (+ x y)) (/ (- x y) (cbrt (+ (* x x) (* y y)))))
  (/ (sqrt (+ x y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (- x y) (cbrt (+ (* x x) (* y y)))))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (- x y) (cbrt (+ (* x x) (* y y)))))
  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (- x y) (cbrt (+ (* x x) (* y y)))))
  (/ (* (cbrt (+ x y)) (cbrt (+ x y))) (sqrt (+ (* x x) (* y y))))
  (* (cbrt (+ x y)) (/ (- x y) (sqrt (+ (* x x) (* y y)))))
  (/ (sqrt (+ x y)) (sqrt (+ (* x x) (* y y))))
  (* (sqrt (+ x y)) (/ (- x y) (sqrt (+ (* x x) (* y y)))))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (* (+ x y) (/ (- x y) (sqrt (+ (* x x) (* y y)))))
  (/ 1 (sqrt (+ (* x x) (* y y))))
  (* (+ x y) (/ (- x y) (sqrt (+ (* x x) (* y y)))))
  (* (cbrt (+ x y)) (cbrt (+ x y)))
  (* (cbrt (+ x y)) (/ (- x y) (+ (* x x) (* y y))))
  (sqrt (+ x y))
  (* (sqrt (+ x y)) (/ (- x y) (+ (* x x) (* y y))))
  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  (/ 1 (+ (* x x) (* y y)))
  (- (* x x) (* y y))
  (/ (+ (pow x 3) (pow y 3)) (+ (* x x) (* y y)))
  (/ (- x y) (+ (* x x) (* y (- y x))))
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- (sqrt x) (sqrt y)) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ (- (sqrt x) (sqrt y)) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))))
  (* (cbrt (+ x y)) (/ (- (sqrt x) (sqrt y)) (cbrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))))
  (* (sqrt (+ x y)) (/ (- (sqrt x) (sqrt y)) (cbrt (+ (* x x) (* y y)))))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (- (sqrt x) (sqrt y)) (cbrt (+ (* x x) (* y y)))))
  (/ (+ (sqrt x) (sqrt y)) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (+ x y) (/ (- (sqrt x) (sqrt y)) (cbrt (+ (* x x) (* y y)))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y)))))
  (* (cbrt (+ x y)) (/ (- (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y)))))
  (* (sqrt (+ x y)) (/ (- (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y)))))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y))))
  (* (+ x y) (/ (- (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y)))))
  (/ (+ (sqrt x) (sqrt y)) (sqrt (+ (* x x) (* y y))))
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  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (+ (sqrt x) (sqrt y)))
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  (+ (sqrt x) (sqrt y))
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  (/ (- x y) (cbrt (/ (+ (* x x) (* y y)) (+ x y))))
  (/ 1 (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
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  (/ 1 (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
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  (/ 1 (sqrt (+ (* x x) (* y y))))
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  (/ 1 (sqrt (+ (* x x) (* y y))))
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  (* (cbrt (+ x y)) (cbrt (+ x y)))
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  (sqrt (+ x y))
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  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
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  (* (+ x y) (/ (- x y) (+ (* x x) (* y y))))
  1
  (/ (+ x y) (+ (* x x) (* y y)))
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  (/ (- x y) (* (cbrt (/ (+ (* x x) (* y y)) (+ x y))) (cbrt (/ (+ (* x x) (* y y)) (+ x y)))))
  (/ (- x y) (sqrt (/ (+ (* x x) (* y y)) (+ x y))))
  (* (cbrt (+ x y)) (/ (- x y) (* (/ (cbrt (+ (* x x) (* y y))) (cbrt (+ x y))) (cbrt (+ (* x x) (* y y))))))
  (* (sqrt (+ x y)) (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (/ (- x y) (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y)))))
  (* (cbrt (+ x y)) (* (cbrt (+ x y)) (/ (- x y) (sqrt (+ (* x x) (* y y))))))
  (* (sqrt (+ x y)) (/ (- x y) (sqrt (+ (* x x) (* y y)))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (/ (- x y) (sqrt (+ (* x x) (* y y))))
  (* (* (cbrt (+ x y)) (cbrt (+ x y))) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (- x y)
  (- x y)
  (- x y)
  (/ (- x y) (+ (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (/ (- x y) (+ (* x x) (* y y))))
  (* (- (* x x) (* y y)) (/ (- x y) (+ (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (+ x y) (cbrt (- x y))))
  (/ (+ (* x x) (* y y)) (* (+ x y) (sqrt (- x y))))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (+ x y) (- (sqrt x) (sqrt y))))
  (/ (+ (* x x) (* y y)) (- (* x x) (* y y)))
  (/ (- x y) (+ (* x x) (* y y)))
  (* (/ (+ (* x x) (* y y)) (+ x y)) (+ (* x x) (* y (+ x y))))
  (+ (* x x) (* y y))
  (- y x)
  (- x y)
  (- x y)
  -1
  1
  1
0.378 * * * [progress]: adding candidates to table
0.483 * * [progress]: iteration 4 / 4
0.483 * * * [progress]: picking best candidate
0.485 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
0.485 * * * [progress]: localizing error
0.485 * * * [progress]: generating rewritten candidates
0.485 * * * [progress]: generating series expansions
0.485 * * * [progress]: simplifying candidates
0.486 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.488 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.488 * [simplify]: Simplified to:
   
0.488 * * * [progress]: adding candidates to table
0.488 * [progress]: [Phase 3 of 3] Extracting.
0.488 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) -1)>)
0.488 * * * [regime-changes]: Trying 2 branch expressions: (y x)
0.488 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) -1)>)
0.541 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) -1)>)
0.577 * * * [regime]: Found split indices: #<option (#s(si 2 94) #s(si 1 127) #s(si 0 200) #s(si 2 209) #s(si 1 255))>
0.579 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) -1)>)
0.633 * [regimes]: Found splitpoints: (#s(sp 2 y -1.2370463069395253e-39) #s(sp 1 y -3.460569152566315e-162) #s(sp 0 y 9.138373226188112e-202) #s(sp 2 y 1.0362297196073818e-162) #s(sp 1 y +nan.0)) , with alts (#<alt (λ (x y) 1)> #<alt (λ (x y) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))))> #<alt (λ (x y) -1)>)
0.634 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= y -1.2370463069395253e-39) -1 (if (<= y -3.460569152566315e-162) (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y))) (if (<= y 9.138373226188112e-202) 1 (if (<= y 1.0362297196073818e-162) -1 (/ (- x y) (/ (+ (* x x) (* y y)) (+ x y)))))))
0.635 * * [simplify]: iteration  0 :  34  enodes  (cost  49 )
0.635 * * [simplify]: iteration  1 :  34  enodes  (cost  49 )
0.635 * [simplify]: Simplified to:
   (if (<= y -1.2370463069395253e-39) -1 (if (<= y -3.460569152566315e-162) (/ (- x y) (/ (+ (* x x) (* y y)) (+ y x))) (if (<= y 9.138373226188112e-202) 1 (if (<= y 1.0362297196073818e-162) -1 (/ (- x y) (/ (+ (* x x) (* y y)) (+ y x)))))))
1.589 * [regime-testing]: End program error score: 5.6863831250040215
1.679 * [regime-testing]: Target error score: 0.02462356701099058