Details

Time bar (total: 18.6s)

sample122.0ms

Algorithm
intervals
Results
50.0ms57×body2560valid
26.0ms45×body640valid
18.0ms37×body1280valid
10.0ms38×body320valid
4.0ms66×body80valid
2.0ms13×body160valid

simplify17.0ms

Counts
1 → 1
Iterations
IterNodes
done28
428
326
221
113
06

prune4.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.3b

localize10.0ms

Local error

Found 2 expressions with local error:

1.3b
(- 1.0 (cos x))
16.9b
(/ (- 1.0 (cos x)) (* x x))

rewrite48.0ms

Algorithm
rewrite-expression-head
Rules
17×add-sqr-sqrt *-un-lft-identity
11×add-cube-cbrt
prod-diff
add-cbrt-cube add-exp-log
times-frac associate-/l*
add-log-exp
fma-neg distribute-lft-out-- difference-of-squares
expm1-log1p-u pow1 cbrt-undiv flip3-- div-exp log1p-expm1-u flip-- associate-/l/
clear-num associate-/r* sub-neg frac-2neg diff-log div-sub prod-exp cbrt-unprod div-inv
Counts
2 → 58
Calls
2 calls:
10.0ms
(- 1.0 (cos x))
35.0ms
(/ (- 1.0 (cos x)) (* x x))

series117.0ms

Counts
2 → 6
Calls
2 calls:
23.0ms
(- 1.0 (cos x))
94.0ms
(/ (- 1.0 (cos x)) (* x x))

simplify2.7s

Counts
64 → 64
Iterations
IterNodes
done5000
34103
2936
1290
0116

prune300.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 0.0b

localize14.0ms

Local error

Found 3 expressions with local error:

0.1b
(/ (- 1.0 (cos x)) x)
0.1b
(* (/ 1 x) (/ (- 1.0 (cos x)) x))
1.3b
(- 1.0 (cos x))

rewrite69.0ms

Algorithm
rewrite-expression-head
Rules
69×add-sqr-sqrt
54×*-un-lft-identity
46×times-frac
36×add-cube-cbrt
27×add-exp-log
19×associate-*r*
17×add-cbrt-cube
13×associate-*l*
div-exp prod-diff
prod-exp distribute-lft-out-- difference-of-squares
unswap-sqr
pow1 cbrt-undiv associate-/l* add-log-exp
cbrt-unprod
expm1-log1p-u associate-/r* fma-neg log1p-expm1-u div-inv
rec-exp flip3-- 1-exp flip-- associate-/l/
frac-times clear-num sub-neg frac-2neg diff-log div-sub pow-prod-down associate-*l/ associate-*r/ *-commutative
Counts
3 → 132
Calls
3 calls:
15.0ms
(/ (- 1.0 (cos x)) x)
45.0ms
(* (/ 1 x) (/ (- 1.0 (cos x)) x))
6.0ms
(- 1.0 (cos x))

series163.0ms

Counts
3 → 9
Calls
3 calls:
60.0ms
(/ (- 1.0 (cos x)) x)
79.0ms
(* (/ 1 x) (/ (- 1.0 (cos x)) x))
24.0ms
(- 1.0 (cos x))

simplify1.9s

Counts
141 → 141
Iterations
IterNodes
done5000
21785
1590
0219

prune652.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 0.0b

localize10.0ms

Local error

Found 3 expressions with local error:

0.1b
(/ (/ (- 1.0 (cos x)) x) x)
0.1b
(/ (- 1.0 (cos x)) x)
1.3b
(- 1.0 (cos x))

rewrite47.0ms

Algorithm
rewrite-expression-head
Rules
132×times-frac
110×add-sqr-sqrt *-un-lft-identity
76×add-cube-cbrt
24×associate-/l*
17×distribute-lft-out-- difference-of-squares
10×add-cbrt-cube add-exp-log
prod-diff
associate-/r* div-inv
add-log-exp
cbrt-undiv div-exp
expm1-log1p-u pow1 fma-neg div-sub log1p-expm1-u associate-/l/
clear-num frac-2neg flip3-- flip--
sub-neg diff-log
Counts
3 → 165
Calls
3 calls:
21.0ms
(/ (/ (- 1.0 (cos x)) x) x)
14.0ms
(/ (- 1.0 (cos x)) x)
6.0ms
(- 1.0 (cos x))

series132.0ms

Counts
3 → 9
Calls
3 calls:
49.0ms
(/ (/ (- 1.0 (cos x)) x) x)
54.0ms
(/ (- 1.0 (cos x)) x)
29.0ms
(- 1.0 (cos x))

simplify1.8s

Counts
174 → 174
Iterations
IterNodes
done5003
21582
1604
0259

prune726.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 0.0b

localize31.0ms

Local error

Found 3 expressions with local error:

0.1b
(/ (cos x) x)
0.1b
(* (/ 1 x) (- (/ 1.0 x) (/ (cos x) x)))
1.5b
(- (/ 1.0 x) (/ (cos x) x))

rewrite274.0ms

Algorithm
rewrite-expression-head
Rules
751×times-frac
607×add-sqr-sqrt
593×*-un-lft-identity
576×add-cube-cbrt
507×prod-diff
171×distribute-rgt-in distribute-lft-in
85×div-inv
14×add-exp-log
13×fma-neg associate-*l*
12×associate-*r*
10×add-cbrt-cube
distribute-lft-out-- difference-of-squares
pow1 add-log-exp
frac-times prod-exp associate-*r/
expm1-log1p-u associate-/r* sub-neg flip3-- div-exp frac-sub log1p-expm1-u flip-- associate-/l* sub-div unswap-sqr
cbrt-undiv distribute-rgt-out-- cbrt-unprod
rec-exp clear-num frac-2neg diff-log 1-exp pow-prod-down associate-*l/ *-commutative
Counts
3 → 632
Calls
3 calls:
7.0ms
(/ (cos x) x)
150.0ms
(* (/ 1 x) (- (/ 1.0 x) (/ (cos x) x)))
56.0ms
(- (/ 1.0 x) (/ (cos x) x))

series264.0ms

Counts
3 → 9
Calls
3 calls:
49.0ms
(/ (cos x) x)
138.0ms
(* (/ 1 x) (- (/ 1.0 x) (/ (cos x) x)))
77.0ms
(- (/ 1.0 x) (/ (cos x) x))

simplify2.7s

Counts
641 → 641
Iterations
IterNodes
done5000
12378
0796

prune2.7s

Pruning

9 alts after pruning (6 fresh and 3 done)

Merged error: 0.0b

regimes187.0ms

Accuracy

99.7% (0.1b remaining)

Error of 0.2b against oracle of 0.1b and baseline of 31.2b

bsearch96.0ms

Steps
ItersRangePoint
11
3.4817375791661903e-26
573579.0075499975
0.027390056951785625
10
-84463.33967257517
-3.2432757514909933e-09
-0.03115379972147734

simplify3.0ms

Iterations
IterNodes
done23
123
019

end0.0ms

sample3.4s

Algorithm
intervals
Results
1.3s1647×body2560valid
812.0ms1515×body640valid
590.0ms1285×body1280valid
251.0ms2168×body80valid
228.0ms927×body320valid
64.0ms458×body160valid