8.329 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.021 * [progress]: [Phase 2 of 3] Improving.
0.022 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.024 * * [simplify]: iteration  0 :  22  enodes  (cost  7 )
0.025 * * [simplify]: iteration  1 :  48  enodes  (cost  7 )
0.027 * * [simplify]: iteration  2 :  104  enodes  (cost  7 )
0.029 * * [simplify]: iteration  3 :  196  enodes  (cost  7 )
0.032 * * [simplify]: iteration  4 :  359  enodes  (cost  7 )
0.038 * * [simplify]: iteration  5 :  686  enodes  (cost  7 )
0.047 * * [simplify]: iteration  6 :  1355  enodes  (cost  7 )
0.080 * * [simplify]: iteration  7 :  5001  enodes  (cost  7 )
0.081 * [simplify]: Simplified to:
   (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.081 * * [progress]: iteration 1 / 4
0.081 * * * [progress]: picking best candidate
0.083 * * * * [pick]: Picked  #<alt (λ (x y) (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))>
0.083 * * * [progress]: localizing error
0.091 * * * [progress]: generating rewritten candidates
0.091 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.102 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2)
0.106 * * * [progress]: generating series expansions
0.106 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.107 * [approximate]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in (x y) around 0
0.107 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in y
0.107 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.107 * [taylor]: Taking taylor expansion of (+ x y) in y
0.107 * [taylor]: Taking taylor expansion of x in y
0.107 * [taylor]: Taking taylor expansion of y in y
0.107 * [taylor]: Taking taylor expansion of (- x y) in y
0.107 * [taylor]: Taking taylor expansion of x in y
0.107 * [taylor]: Taking taylor expansion of y in y
0.107 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.107 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.107 * [taylor]: Taking taylor expansion of x in y
0.107 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.107 * [taylor]: Taking taylor expansion of y in y
0.107 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.107 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.107 * [taylor]: Taking taylor expansion of (+ x y) in x
0.107 * [taylor]: Taking taylor expansion of x in x
0.107 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (- x y) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.108 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (/ (* (+ x y) (- x y)) (+ (pow x 2) (pow y 2))) in x
0.108 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.108 * [taylor]: Taking taylor expansion of (+ x y) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (- x y) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.108 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.108 * [taylor]: Taking taylor expansion of x in x
0.108 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.108 * [taylor]: Taking taylor expansion of y in x
0.108 * [taylor]: Taking taylor expansion of -1 in y
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.111 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.112 * [taylor]: Taking taylor expansion of 2 in y
0.112 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.112 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.112 * [taylor]: Taking taylor expansion of y in y
0.117 * [taylor]: Taking taylor expansion of 0 in y
0.117 * [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
0.117 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.117 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.117 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.117 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.117 * [taylor]: Taking taylor expansion of x in y
0.117 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.117 * [taylor]: Taking taylor expansion of y in y
0.118 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.118 * [taylor]: Taking taylor expansion of y in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.118 * [taylor]: Taking taylor expansion of x in y
0.118 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.118 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.118 * [taylor]: Taking taylor expansion of x in y
0.118 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.118 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.118 * [taylor]: Taking taylor expansion of y in y
0.120 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.120 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.120 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.124 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.124 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.124 * [taylor]: Taking taylor expansion of x in x
0.124 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.125 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.125 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.125 * [taylor]: Taking taylor expansion of x in x
0.125 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.125 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.125 * [taylor]: Taking taylor expansion of y in x
0.126 * [taylor]: Taking taylor expansion of (/ (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.126 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.126 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.126 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.126 * [taylor]: Taking taylor expansion of x in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.127 * [taylor]: Taking taylor expansion of y in x
0.127 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.127 * [taylor]: Taking taylor expansion of y in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.127 * [taylor]: Taking taylor expansion of x in x
0.127 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.127 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.127 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.127 * [taylor]: Taking taylor expansion of x in x
0.128 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.128 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.128 * [taylor]: Taking taylor expansion of y in x
0.129 * [taylor]: Taking taylor expansion of 1 in y
0.132 * [taylor]: Taking taylor expansion of 0 in y
0.135 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
0.135 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.136 * [taylor]: Taking taylor expansion of 2 in y
0.136 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.136 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.136 * [taylor]: Taking taylor expansion of y in y
0.143 * [taylor]: Taking taylor expansion of 0 in y
0.144 * [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
0.144 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in y
0.144 * [taylor]: Taking taylor expansion of -1 in y
0.144 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in y
0.144 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.144 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.144 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.144 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.144 * [taylor]: Taking taylor expansion of x in y
0.144 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.144 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.144 * [taylor]: Taking taylor expansion of y in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.145 * [taylor]: Taking taylor expansion of x in y
0.145 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.145 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.145 * [taylor]: Taking taylor expansion of x in y
0.145 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.145 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.145 * [taylor]: Taking taylor expansion of y in y
0.146 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.146 * [taylor]: Taking taylor expansion of -1 in x
0.146 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.146 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.146 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.146 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.146 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.147 * [taylor]: Taking taylor expansion of y in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.147 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.147 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.147 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.147 * [taylor]: Taking taylor expansion of x in x
0.148 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.148 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.148 * [taylor]: Taking taylor expansion of y in x
0.149 * [taylor]: Taking taylor expansion of (* -1 (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))))) in x
0.149 * [taylor]: Taking taylor expansion of -1 in x
0.149 * [taylor]: Taking taylor expansion of (/ (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) (+ (/ 1 (pow x 2)) (/ 1 (pow y 2)))) in x
0.149 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.149 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.149 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.149 * [taylor]: Taking taylor expansion of y in x
0.149 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.149 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.150 * [taylor]: Taking taylor expansion of y in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.150 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.150 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.150 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.150 * [taylor]: Taking taylor expansion of x in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.151 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.151 * [taylor]: Taking taylor expansion of y in x
0.152 * [taylor]: Taking taylor expansion of 1 in y
0.155 * [taylor]: Taking taylor expansion of 0 in y
0.160 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
0.160 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.160 * [taylor]: Taking taylor expansion of 2 in y
0.160 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.160 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.160 * [taylor]: Taking taylor expansion of y in y
0.168 * [taylor]: Taking taylor expansion of 0 in y
0.168 * * * * [progress]: [ 2 / 2 ] generating series at (2 2)
0.168 * [approximate]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in (x y) around 0
0.168 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.168 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.168 * [taylor]: Taking taylor expansion of x in y
0.168 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.168 * [taylor]: Taking taylor expansion of y in y
0.168 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.168 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.168 * [taylor]: Taking taylor expansion of x in x
0.168 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.168 * [taylor]: Taking taylor expansion of y in x
0.168 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.168 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.169 * [taylor]: Taking taylor expansion of x in x
0.169 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.169 * [taylor]: Taking taylor expansion of y in x
0.169 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.169 * [taylor]: Taking taylor expansion of y in y
0.169 * [taylor]: Taking taylor expansion of 0 in y
0.170 * [taylor]: Taking taylor expansion of 1 in y
0.171 * [taylor]: Taking taylor expansion of 0 in y
0.173 * [taylor]: Taking taylor expansion of 0 in y
0.173 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.173 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.173 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.173 * [taylor]: Taking taylor expansion of x in y
0.173 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.173 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.173 * [taylor]: Taking taylor expansion of y in y
0.174 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.174 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.174 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.174 * [taylor]: Taking taylor expansion of x in x
0.174 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.174 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.174 * [taylor]: Taking taylor expansion of y in x
0.175 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 (pow x 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 (/ 1 (pow y 2)) 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 1 in y
0.177 * [taylor]: Taking taylor expansion of 0 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
0.180 * [taylor]: Taking taylor expansion of 0 in y
0.182 * [taylor]: Taking taylor expansion of 0 in y
0.183 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.183 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.183 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.183 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.184 * [taylor]: Taking taylor expansion of x 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
0.184 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.184 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.184 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.184 * [taylor]: Taking taylor expansion of x in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.185 * [taylor]: Taking taylor expansion of y in x
0.185 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.185 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.185 * [taylor]: Taking taylor expansion of x in x
0.185 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.185 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.185 * [taylor]: Taking taylor expansion of y in x
0.186 * [taylor]: Taking taylor expansion of 1 in y
0.187 * [taylor]: Taking taylor expansion of 0 in y
0.188 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.188 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.188 * [taylor]: Taking taylor expansion of y in y
0.190 * [taylor]: Taking taylor expansion of 0 in y
0.193 * [taylor]: Taking taylor expansion of 0 in y
0.194 * * * [progress]: simplifying candidates
0.194 * [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))))
  (- (* (- x y) (+ x y)))
  (- (+ (* 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))
  (* (exp (* x x)) (exp (* y y)))
  (log (+ (* x x) (* y y)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (- (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (- (* x x) (* y y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.199 * * [simplify]: iteration  0 :  308  enodes  (cost  388 )
0.206 * * [simplify]: iteration  1 :  1848  enodes  (cost  330 )
0.233 * * [simplify]: iteration  2 :  5001  enodes  (cost  322 )
0.236 * [simplify]: Simplified to:
   (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (log (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (exp (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (* (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))))
  (pow (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))) 3)
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (sqrt (/ (* (- x y) (+ x y)) (+ (* x x) (* y y))))
  (- (pow y 2) (pow x 2))
  (- (+ (* 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)
  (/ (+ x y) (+ (pow x 2) (pow y 2)))
  (/ 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))
  (/ (+ (pow x 2) (pow y 2)) (+ x y))
  (/ (* (- x y) (+ x y)) (+ (pow (* x x) 3) (pow (* y y) 3)))
  (/ 1 (+ (* x x) (* y y)))
  (* (* (+ (* y (- y x)) (pow x 2)) (+ (* y (+ y x)) (pow x 2))) (+ (* x x) (* y y)))
  (* (* (- x y) (+ (* y (+ y x)) (pow x 2))) (+ (* x x) (* y y)))
  (* (* (+ (* y (- y x)) (pow x 2)) (+ x y)) (+ (* x x) (* y y)))
  (+ (* (- (pow y 3)) y) (pow x 4))
  (* (+ (* y (- y x)) (pow x 2)) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (- x y))
  (* (+ (* y (+ y x)) (pow x 2)) (+ (* x x) (* y y)))
  (* (+ (* x x) (* y y)) (+ x y))
  (exp (+ (* x x) (* y y)))
  (log (+ (pow x 2) (pow y 2)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (pow (+ (pow x 2) (pow y 2)) 3)
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (- (pow y 4) (- (* (* x x) (* y y)) (pow x 4)))
  (+ (* (- (pow y 3)) y) (pow x 4))
  (* (- x y) (+ x y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.236 * * * [progress]: adding candidates to table
0.331 * * [progress]: iteration 2 / 4
0.331 * * * [progress]: picking best candidate
0.334 * * * * [pick]: Picked  #<alt (λ (x y) -1)>
0.334 * * * [progress]: localizing error
0.334 * * * [progress]: generating rewritten candidates
0.334 * * * [progress]: generating series expansions
0.334 * * * [progress]: simplifying candidates
0.334 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.336 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.336 * [simplify]: Simplified to:
   
0.336 * * * [progress]: adding candidates to table
0.336 * * [progress]: iteration 3 / 4
0.336 * * * [progress]: picking best candidate
0.339 * * * * [pick]: Picked  #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>
0.339 * * * [progress]: localizing error
0.348 * * * [progress]: generating rewritten candidates
0.348 * * * * [progress]: [ 1 / 2 ] rewriting at (2 2)
0.360 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2 1)
0.364 * * * [progress]: generating series expansions
0.364 * * * * [progress]: [ 1 / 2 ] generating series at (2 2)
0.365 * [approximate]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (* (+ x y) (- x y))) in (x y) around 0
0.365 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (* (+ x y) (- x y))) in y
0.365 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.365 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.365 * [taylor]: Taking taylor expansion of x in y
0.365 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.365 * [taylor]: Taking taylor expansion of y in y
0.365 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
0.365 * [taylor]: Taking taylor expansion of (+ x y) in y
0.365 * [taylor]: Taking taylor expansion of x in y
0.365 * [taylor]: Taking taylor expansion of y in y
0.365 * [taylor]: Taking taylor expansion of (- x y) in y
0.365 * [taylor]: Taking taylor expansion of x in y
0.365 * [taylor]: Taking taylor expansion of y in y
0.365 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (* (+ x y) (- x y))) in x
0.366 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.366 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.366 * [taylor]: Taking taylor expansion of (+ x y) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of (- x y) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of (/ (+ (pow x 2) (pow y 2)) (* (+ x y) (- x y))) in x
0.366 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.366 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
0.366 * [taylor]: Taking taylor expansion of (+ x y) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of (- x y) in x
0.366 * [taylor]: Taking taylor expansion of x in x
0.366 * [taylor]: Taking taylor expansion of y in x
0.366 * [taylor]: Taking taylor expansion of -1 in y
0.370 * [taylor]: Taking taylor expansion of 0 in y
0.372 * [taylor]: Taking taylor expansion of (- (* 2 (/ 1 (pow y 2)))) in y
0.372 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.372 * [taylor]: Taking taylor expansion of 2 in y
0.372 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.372 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.372 * [taylor]: Taking taylor expansion of y in y
0.378 * [taylor]: Taking taylor expansion of 0 in y
0.378 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))) in (x y) around 0
0.378 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))) in y
0.378 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.378 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.378 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.378 * [taylor]: Taking taylor expansion of x in y
0.378 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.378 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.378 * [taylor]: Taking taylor expansion of y in y
0.379 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
0.379 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
0.379 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.379 * [taylor]: Taking taylor expansion of x in y
0.379 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.379 * [taylor]: Taking taylor expansion of y in y
0.379 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.379 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.379 * [taylor]: Taking taylor expansion of y in y
0.379 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.379 * [taylor]: Taking taylor expansion of x in y
0.381 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))) in x
0.381 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.381 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.381 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.381 * [taylor]: Taking taylor expansion of x in x
0.381 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.381 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.381 * [taylor]: Taking taylor expansion of y in x
0.381 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.381 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.381 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.381 * [taylor]: Taking taylor expansion of x in x
0.382 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.382 * [taylor]: Taking taylor expansion of y in x
0.382 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.382 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.382 * [taylor]: Taking taylor expansion of y in x
0.382 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.382 * [taylor]: Taking taylor expansion of x in x
0.383 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))) in x
0.383 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.383 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.383 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.383 * [taylor]: Taking taylor expansion of x in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.384 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.384 * [taylor]: Taking taylor expansion of y in x
0.384 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
0.384 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.384 * [taylor]: Taking taylor expansion of x in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.384 * [taylor]: Taking taylor expansion of y in x
0.384 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.384 * [taylor]: Taking taylor expansion of y in x
0.384 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.384 * [taylor]: Taking taylor expansion of x in x
0.386 * [taylor]: Taking taylor expansion of 1 in y
0.388 * [taylor]: Taking taylor expansion of 0 in y
0.392 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.392 * [taylor]: Taking taylor expansion of 2 in y
0.392 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.392 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.392 * [taylor]: Taking taylor expansion of y in y
0.400 * [taylor]: Taking taylor expansion of 0 in y
0.400 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))) in (x y) around 0
0.400 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))) in y
0.400 * [taylor]: Taking taylor expansion of -1 in y
0.400 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
0.400 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.400 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.400 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.400 * [taylor]: Taking taylor expansion of x in y
0.400 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.400 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.400 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
0.401 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
0.401 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.401 * [taylor]: Taking taylor expansion of y in y
0.401 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.401 * [taylor]: Taking taylor expansion of x in y
0.401 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
0.401 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.401 * [taylor]: Taking taylor expansion of y in y
0.402 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.402 * [taylor]: Taking taylor expansion of x in y
0.403 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))) in x
0.403 * [taylor]: Taking taylor expansion of -1 in x
0.403 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.403 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.403 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.403 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.403 * [taylor]: Taking taylor expansion of x in x
0.403 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.403 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.403 * [taylor]: Taking taylor expansion of y in x
0.404 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.404 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.404 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.404 * [taylor]: Taking taylor expansion of y in x
0.404 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.404 * [taylor]: Taking taylor expansion of x in x
0.404 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.404 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.404 * [taylor]: Taking taylor expansion of y in x
0.404 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.404 * [taylor]: Taking taylor expansion of x in x
0.406 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))) in x
0.406 * [taylor]: Taking taylor expansion of -1 in x
0.406 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
0.406 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.406 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.406 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.406 * [taylor]: Taking taylor expansion of x in x
0.406 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.406 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.406 * [taylor]: Taking taylor expansion of y in x
0.406 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
0.406 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
0.406 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.406 * [taylor]: Taking taylor expansion of y in x
0.406 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.407 * [taylor]: Taking taylor expansion of x in x
0.407 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
0.407 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.407 * [taylor]: Taking taylor expansion of y in x
0.407 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.407 * [taylor]: Taking taylor expansion of x in x
0.409 * [taylor]: Taking taylor expansion of 1 in y
0.412 * [taylor]: Taking taylor expansion of 0 in y
0.416 * [taylor]: Taking taylor expansion of (* 2 (/ 1 (pow y 2))) in y
0.416 * [taylor]: Taking taylor expansion of 2 in y
0.416 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.416 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.416 * [taylor]: Taking taylor expansion of y in y
0.424 * [taylor]: Taking taylor expansion of 0 in y
0.424 * * * * [progress]: [ 2 / 2 ] generating series at (2 2 1)
0.424 * [approximate]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in (x y) around 0
0.424 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in y
0.424 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.424 * [taylor]: Taking taylor expansion of x in y
0.424 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.424 * [taylor]: Taking taylor expansion of y in y
0.424 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.424 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.425 * [taylor]: Taking taylor expansion of x in x
0.425 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.425 * [taylor]: Taking taylor expansion of y in x
0.425 * [taylor]: Taking taylor expansion of (+ (pow x 2) (pow y 2)) in x
0.425 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.425 * [taylor]: Taking taylor expansion of x in x
0.425 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.425 * [taylor]: Taking taylor expansion of y in x
0.425 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.425 * [taylor]: Taking taylor expansion of y in y
0.425 * [taylor]: Taking taylor expansion of 0 in y
0.426 * [taylor]: Taking taylor expansion of 1 in y
0.427 * [taylor]: Taking taylor expansion of 0 in y
0.429 * [taylor]: Taking taylor expansion of 0 in y
0.429 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.429 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.429 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.429 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.429 * [taylor]: Taking taylor expansion of x in y
0.430 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.430 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.430 * [taylor]: Taking taylor expansion of y in y
0.430 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.430 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.430 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.430 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.431 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.431 * [taylor]: Taking taylor expansion of y in x
0.431 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.431 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.431 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.431 * [taylor]: Taking taylor expansion of x in x
0.431 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.431 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.431 * [taylor]: Taking taylor expansion of y in x
0.432 * [taylor]: Taking taylor expansion of 1 in y
0.433 * [taylor]: Taking taylor expansion of 0 in y
0.434 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.434 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.434 * [taylor]: Taking taylor expansion of y in y
0.436 * [taylor]: Taking taylor expansion of 0 in y
0.438 * [taylor]: Taking taylor expansion of 0 in y
0.440 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in (x y) around 0
0.440 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in y
0.440 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in y
0.440 * [taylor]: Taking taylor expansion of (pow x 2) in y
0.440 * [taylor]: Taking taylor expansion of x in y
0.440 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.440 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.440 * [taylor]: Taking taylor expansion of y in y
0.440 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.440 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.440 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.441 * [taylor]: Taking taylor expansion of x in x
0.441 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.441 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.441 * [taylor]: Taking taylor expansion of y in x
0.441 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 (pow y 2))) in x
0.441 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.441 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.441 * [taylor]: Taking taylor expansion of x in x
0.442 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in x
0.442 * [taylor]: Taking taylor expansion of (pow y 2) in x
0.442 * [taylor]: Taking taylor expansion of y in x
0.442 * [taylor]: Taking taylor expansion of 1 in y
0.443 * [taylor]: Taking taylor expansion of 0 in y
0.444 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
0.444 * [taylor]: Taking taylor expansion of (pow y 2) in y
0.444 * [taylor]: Taking taylor expansion of y in y
0.446 * [taylor]: Taking taylor expansion of 0 in y
0.449 * [taylor]: Taking taylor expansion of 0 in y
0.452 * * * [progress]: simplifying candidates
0.453 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (* x x) (* y y))) (+ (log (- x y)) (log (+ x y))))
  (- (log (+ (* x x) (* y y))) (log (* (- x y) (+ x y))))
  (log (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (exp (/ (+ (* x x) (* y 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))) (* (* (* (- x y) (+ x y)) (* (- x y) (+ x y))) (* (- x y) (+ x y))))
  (* (cbrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))) (cbrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))
  (cbrt (/ (+ (* 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)) (* (- x y) (+ x y))))
  (sqrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (sqrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (- (+ (* x x) (* y y)))
  (- (* (- x 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)) (+ x y))
  (/ 1 (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (- x y))
  (/ (* (- x y) (+ x y)) (cbrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- x y) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (+ x y)))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (+ x y)))
  (* (* (- x y) (+ x y)) (+ (* (* x x) (* x x)) (- (* (* y y) (* y y)) (* (* x x) (* y y)))))
  (* (* (- x y) (+ x y)) (- (* x x) (* y y)))
  (* (exp (* x x)) (exp (* y y)))
  (log (+ (* x x) (* y y)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (* (* (+ (* x x) (* y y)) (+ (* x x) (* y y))) (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (+ (* (* x x) (* x x)) (- (* (* y y) (* y y)) (* (* x x) (* y y))))
  (- (* (* x x) (* x x)) (* (* y y) (* y y)))
  (- (* x x) (* y y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.457 * * [simplify]: iteration  0 :  307  enodes  (cost  402 )
0.464 * * [simplify]: iteration  1 :  1682  enodes  (cost  344 )
0.489 * * [simplify]: iteration  2 :  5003  enodes  (cost  343 )
0.491 * [simplify]: Simplified to:
   (log (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (log (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (log (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (exp (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (pow (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))) 3)
  (pow (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))) 3)
  (* (cbrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))) (cbrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))
  (cbrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (pow (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))) 3)
  (sqrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (sqrt (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))
  (- (+ (* x x) (* y y)))
  (- (pow y 2) (pow x 2))
  (/ (* (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))
  (/ (+ (pow x 2) (pow y 2)) (+ x y))
  (/ 1 (* (- x y) (+ x y)))
  (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
  (/ (+ (pow x 2) (pow y 2)) (- x y))
  (/ (* (- x y) (+ x y)) (cbrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) (sqrt (+ (* x x) (* y y))))
  (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- x y) (+ (pow x 3) (pow y 3))))
  (/ (+ (* x x) (* y y)) (* (- x y) (- (* x x) (* y y))))
  (/ (+ (* x x) (* y y)) (* (- (pow x 3) (pow y 3)) (+ x y)))
  (/ (+ (* x x) (* y y)) (* (- (* x x) (* y y)) (+ x y)))
  (* (* (- (pow y 4) (- (* (* x x) (* y y)) (pow x 4))) (+ x y)) (- x y))
  (* (* (- x y) (+ x y)) (* (- x y) (+ x y)))
  (exp (+ (* x x) (* y y)))
  (log (+ (pow x 2) (pow y 2)))
  (exp (+ (* x x) (* y y)))
  (* (cbrt (+ (* x x) (* y y))) (cbrt (+ (* x x) (* y y))))
  (cbrt (+ (* x x) (* y y)))
  (pow (+ (pow x 2) (pow y 2)) 3)
  (sqrt (+ (* x x) (* y y)))
  (sqrt (+ (* x x) (* y y)))
  (+ (pow (* x x) 3) (pow (* y y) 3))
  (- (pow y 4) (- (* (* x x) (* y y)) (pow x 4)))
  (+ (* (- (pow y 3)) y) (pow x 4))
  (* (- x y) (+ x y))
  -1
  1
  1
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
  (+ (pow x 2) (pow y 2))
0.491 * * * [progress]: adding candidates to table
0.578 * * [progress]: iteration 4 / 4
0.578 * * * [progress]: picking best candidate
0.578 * * * * [pick]: Picked  #<alt (λ (x y) 1)>
0.578 * * * [progress]: localizing error
0.579 * * * [progress]: generating rewritten candidates
0.579 * * * [progress]: generating series expansions
0.579 * * * [progress]: simplifying candidates
0.579 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.581 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.581 * [simplify]: Simplified to:
   
0.581 * * * [progress]: adding candidates to table
0.581 * [progress]: [Phase 3 of 3] Extracting.
0.581 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) 1)> #<alt (λ (x y) -1)> #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>)
0.582 * * * [regime-changes]: Trying 2 branch expressions: (y x)
0.582 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) 1)> #<alt (λ (x y) -1)> #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>)
0.612 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) 1)> #<alt (λ (x y) -1)> #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>)
0.634 * * * [regime]: Found split indices: #<option (#s(si 1 48) #s(si 2 117) #s(si 1 131) #s(si 0 203) #s(si 2 255))>
0.635 * [binary-search]: Improving bounds with binary search for y and (#<alt (λ (x y) 1)> #<alt (λ (x y) -1)> #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>)
0.736 * [regimes]: Found splitpoints: (#s(sp 1 y -1.0010895938656462e+153) #s(sp 2 y -2.2700368666007032e-163) #s(sp 1 y -7.956381646089189e-195) #s(sp 0 y 1.8163835546796256e-162) #s(sp 2 y +nan.0)) , with alts (#<alt (λ (x y) 1)> #<alt (λ (x y) -1)> #<alt (λ (x y) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))))>)
0.736 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (if (<= y -1.0010895938656462e+153) -1 (if (<= y -2.2700368666007032e-163) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))) (if (<= y -7.956381646089189e-195) -1 (if (<= y 1.8163835546796256e-162) 1 (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))))))
0.737 * * [simplify]: iteration  0 :  29  enodes  (cost  16 )
0.737 * * [simplify]: iteration  1 :  29  enodes  (cost  16 )
0.737 * [simplify]: Simplified to:
   (if (<= y -1.0010895938656462e+153) -1 (if (<= y -2.2700368666007032e-163) (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y)))) (if (<= y -7.956381646089189e-195) -1 (if (<= y 1.8163835546796256e-162) 1 (/ 1 (/ (+ (* x x) (* y y)) (* (- x y) (+ x y))))))))
1.298 * [regime-testing]: Baseline error score: 21.606263983222583
1.298 * [regime-testing]: Oracle error score: 0.5379714364528455
1.299 * [regime-testing]: End program error score: 5.452541123607293
1.329 * [regime-testing]: Target error score: 0.10804288545369084