Details

Time bar (total: 20.9s)

sample212.0ms

Algorithm
intervals
Results
128.0ms159×body1280valid
39.0ms52×body640valid
23.0ms14×body2560valid
7.0ms19×body320valid
3.0ms10×body160valid
0.0msbody80valid

simplify3.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune3.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 37.6b

localize41.0ms

Local error

Found 2 expressions with local error:

0.7b
(- (cos (+ x eps)) (cos x))
2.0b
(cos (+ x eps))

rewrite36.0ms

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:
23.0ms
(- (cos (+ x eps)) (cos x))
11.0ms
(cos (+ x eps))

series127.0ms

Counts
2 → 6
Calls
2 calls:
86.0ms
(- (cos (+ x eps)) (cos x))
41.0ms
(cos (+ x eps))

simplify3.3s

Counts
32 → 32
Iterations
IterNodes
done5000
54923
41856
3763
2290
1137
067

prune197.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 0.5b

localize31.0ms

Local error

Found 4 expressions with local error:

0.0b
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
0.0b
(+ x (+ x eps))
0.3b
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
2.0b
(sin (/ (+ x (+ x eps)) 2))

rewrite149.0ms

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:
56.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
16.0ms
(+ x (+ x eps))
55.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
22.0ms
(sin (/ (+ x (+ x eps)) 2))

series242.0ms

Counts
4 → 12
Calls
4 calls:
95.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
25.0ms
(+ x (+ x eps))
79.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
42.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify2.3s

Counts
76 → 76
Iterations
IterNodes
done5002
33959
2868
1291
0123

prune391.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0.4b

localize23.0ms

Local error

Found 2 expressions with local error:

0.3b
(* (* -2 (sin (+ (/ eps 2) x))) (sin (/ eps 2)))
2.1b
(sin (+ (/ eps 2) x))

rewrite85.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-cbrt-cube add-exp-log
add-sqr-sqrt *-un-lft-identity associate-*r* pow-prod-down prod-exp add-cube-cbrt cbrt-unprod
insert-posit16 add-log-exp
sin-sum associate-*l* *-commutative
Counts
2 → 28
Calls
2 calls:
65.0ms
(* (* -2 (sin (+ (/ eps 2) x))) (sin (/ eps 2)))
19.0ms
(sin (+ (/ eps 2) x))

series119.0ms

Counts
2 → 6
Calls
2 calls:
72.0ms
(* (* -2 (sin (+ (/ eps 2) x))) (sin (/ eps 2)))
46.0ms
(sin (+ (/ eps 2) x))

simplify2.0s

Counts
34 → 34
Iterations
IterNodes
done5000
31968
2486
1172
075

prune239.0ms

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 0.1b

localize65.0ms

Local error

Found 4 expressions with local error:

0.1b
(* (cos (/ eps 2)) (sin x))
0.1b
(+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))
0.1b
(* (sin (/ eps 2)) (cos x))
0.2b
(* (* -2 (+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))) (sin (/ eps 2)))

rewrite132.0ms

Algorithm
rewrite-expression-head
Rules
13×add-sqr-sqrt pow1 add-cbrt-cube add-exp-log
*-un-lft-identity associate-*r* add-cube-cbrt
associate-*l*
add-log-exp
pow-prod-down prod-exp cbrt-unprod
insert-posit16
*-commutative
flip3-+ associate-*l/ associate-*r/ flip-+ unswap-sqr
+-commutative sum-log sin-cos-mult
Counts
4 → 72
Calls
4 calls:
17.0ms
(* (cos (/ eps 2)) (sin x))
26.0ms
(+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))
13.0ms
(* (sin (/ eps 2)) (cos x))
73.0ms
(* (* -2 (+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))) (sin (/ eps 2)))

series461.0ms

Counts
4 → 12
Calls
4 calls:
56.0ms
(* (cos (/ eps 2)) (sin x))
137.0ms
(+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))
84.0ms
(* (sin (/ eps 2)) (cos x))
183.0ms
(* (* -2 (+ (* (sin (/ eps 2)) (cos x)) (* (cos (/ eps 2)) (sin x)))) (sin (/ eps 2)))

simplify1.9s

Counts
84 → 84
Iterations
IterNodes
done5000
21561
1418
0160

prune520.0ms

Pruning

13 alts after pruning (13 fresh and 0 done)

Merged error: 0.0b

regimes243.0ms

Accuracy

0% (0.4b remaining)

Error of 0.4b against oracle of 0.1b and baseline of 0.4b

bsearch0.0ms

simplify7.0ms

Iterations
IterNodes
done22
122
018

end0.0ms

sample8.1s

Algorithm
intervals
Results
4.8s4425×body1280valid
1.3s1901×body640valid
1.1s618×body2560valid
700.0ms711×body320valid
115.0ms277×body160valid
9.0ms68×body80valid