Details

Time bar (total: 17.9s)

sample260.0ms

Algorithm
intervals
Results
133.0ms148×body1280valid
63.0ms59×body640valid
39.0ms20×body2560valid
6.0ms13×body320valid
5.0ms15×body160valid
0.0msbody80valid

simplify13.0ms

Counts
1 → 1

prune10.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 40.6b

localize28.0ms

Local error

Found 2 expressions with local error:

3.2b
(cos (+ x eps))
2.0b
(- (cos (+ x eps)) (cos x))

rewrite57.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 cos-sum add-cbrt-cube add-exp-log add-cube-cbrt insert-posit16
associate--l- sub-neg flip3-- diff-log diff-cos flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 26
Calls
2 calls:
Slowest
42.0ms
(- (cos (+ x eps)) (cos x))
14.0ms
(cos (+ x eps))

series85.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
66.0ms
(- (cos (+ x eps)) (cos x))
18.0ms
(cos (+ x eps))

simplify1.3s

Counts
32 → 32

prune379.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 0.3b

localize24.0ms

Local error

Found 4 expressions with local error:

3.1b
(sin (/ (+ x (+ x eps)) 2))
0.3b
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
0.0b
(+ x (+ x eps))
0.0b
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))

rewrite184.0ms

Algorithm
rewrite-expression-head
Rules
12×*-un-lft-identity
11×pow1 add-cbrt-cube add-exp-log
add-sqr-sqrt add-log-exp
add-cube-cbrt
associate-*l*
associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16
sum-log distribute-lft-out
*-commutative sin-mult
+-commutative associate-+r+ flip3-+ associate-*r/ flip-+ unswap-sqr
Counts
4 → 64
Calls
4 calls:
Slowest
72.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
71.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
21.0ms
(+ x (+ x eps))
19.0ms
(sin (/ (+ x (+ x eps)) 2))

series286.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
118.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
85.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
49.0ms
(sin (/ (+ x (+ x eps)) 2))
35.0ms
(+ x (+ x eps))

simplify1.2s

Counts
76 → 76

prune961.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.2b

localize38.0ms

Local error

Found 3 expressions with local error:

3.1b
(sin (/ (+ x (+ x eps)) 2))
0.3b
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
0.0b
(+ x (+ x eps))

rewrite152.0ms

Algorithm
rewrite-expression-head
Rules
*-un-lft-identity
pow1 add-cbrt-cube add-exp-log add-log-exp
add-sqr-sqrt add-cube-cbrt
sum-log associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16 distribute-lft-out
+-commutative associate-+r+ flip3-+ associate-*l* *-commutative flip-+
Counts
3 → 43
Calls
3 calls:
Slowest
93.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
38.0ms
(sin (/ (+ x (+ x eps)) 2))
20.0ms
(+ x (+ x eps))

series171.0ms

Counts
3 → 9
Calls
3 calls:
Slowest
85.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
51.0ms
(sin (/ (+ x (+ x eps)) 2))
35.0ms
(+ x (+ x eps))

simplify1.1s

Counts
52 → 52

prune477.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0.2b

localize66.0ms

Local error

Found 4 expressions with local error:

6.2b
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
6.2b
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
6.2b
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
3.1b
(sin (/ (+ x (+ x eps)) 2))

rewrite68.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt pow1 *-un-lft-identity add-cbrt-cube add-exp-log add-cube-cbrt insert-posit16 add-log-exp
cbrt-prod cbrt-div pow1/3 sin-mult
Counts
4 → 41
Calls
4 calls:
Slowest
20.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
19.0ms
(sin (/ (+ x (+ x eps)) 2))
16.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
12.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))

series1.0s

Counts
4 → 12
Calls
4 calls:
Slowest
613.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
199.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
187.0ms
(cbrt (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
40.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify751.0ms

Counts
53 → 53

prune724.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 0.2b

regimes206.0ms

Accuracy

97.9% (0.3b remaining)

Error of 0.7b against oracle of 0.4b and baseline of 15.4b

bsearch258.0ms

end0.0ms

sample8.2s

Algorithm
intervals
Results
4.3s4466×body1280valid
1.6s628×body2560valid
1.6s1855×body640valid
430.0ms688×body320valid
118.0ms290×body160valid
10.0ms73×body80valid