Details

Time bar (total: 14.3s)

sample196.0ms

Algorithm
intervals
Results
112.0ms145×body1280valid
30.0ms22×body2560valid
29.0ms55×body640valid
11.0ms26×body320valid
2.0msbody160valid
0.0msbody80valid

simplify7.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 38.6b

localize61.0ms

Local error

Found 2 expressions with local error:

0.8b
(- (cos (+ x eps)) (cos x))
2.4b
(cos (+ x eps))

rewrite31.0ms

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:
18.0ms
(- (cos (+ x eps)) (cos x))
13.0ms
(cos (+ x eps))

series125.0ms

Counts
2 → 6
Calls
2 calls:
104.0ms
(- (cos (+ x eps)) (cos x))
21.0ms
(cos (+ x eps))

simplify849.0ms

Counts
32 → 32
Iterations
IterNodes
done2008
41424
3658
2282
1137
067

prune156.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.4b

localize28.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ x (+ x eps))
0.0b
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
0.3b
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
2.4b
(sin (/ (+ x (+ x eps)) 2))

rewrite152.0ms

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:
10.0ms
(+ x (+ x eps))
64.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
55.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
22.0ms
(sin (/ (+ x (+ x eps)) 2))

series237.0ms

Counts
4 → 12
Calls
4 calls:
29.0ms
(+ x (+ x eps))
87.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
71.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
50.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify508.0ms

Counts
76 → 76
Iterations
IterNodes
done2000
2852
1291
0123

prune378.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0.3b

localize47.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ x (+ x eps))
0.3b
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
2.4b
(sin (/ (+ x (+ x eps)) 2))

rewrite127.0ms

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:
20.0ms
(+ x (+ x eps))
67.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
39.0ms
(sin (/ (+ x (+ x eps)) 2))

series146.0ms

Counts
3 → 9
Calls
3 calls:
25.0ms
(+ x (+ x eps))
78.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ x eps)) 2)))
41.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify566.0ms

Counts
52 → 52
Iterations
IterNodes
done2000
2743
1241
096

prune290.0ms

Pruning

12 alts after pruning (11 fresh and 1 done)

Merged error: 0.3b

localize71.0ms

Local error

Found 4 expressions with local error:

0.6b
(cbrt (sin (/ eps 2)))
0.6b
(cbrt (sin (/ eps 2)))
0.6b
(cbrt (sin (/ eps 2)))
2.4b
(sin (/ (+ x (+ x eps)) 2))

rewrite42.0ms

Algorithm
rewrite-expression-head
Rules
cbrt-prod
add-sqr-sqrt *-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube add-exp-log insert-posit16 add-log-exp
pow1/3
Counts
4 → 44
Calls
4 calls:
1.0ms
(cbrt (sin (/ eps 2)))
1.0ms
(cbrt (sin (/ eps 2)))
2.0ms
(cbrt (sin (/ eps 2)))
37.0ms
(sin (/ (+ x (+ x eps)) 2))

series472.0ms

Counts
4 → 12
Calls
4 calls:
147.0ms
(cbrt (sin (/ eps 2)))
166.0ms
(cbrt (sin (/ eps 2)))
118.0ms
(cbrt (sin (/ eps 2)))
41.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify566.0ms

Counts
56 → 56
Iterations
IterNodes
done2000
3648
2234
1125
062

prune347.0ms

Pruning

13 alts after pruning (11 fresh and 2 done)

Merged error: 0.3b

regimes249.0ms

Accuracy

97.4% (0.4b remaining)

Error of 0.7b against oracle of 0.4b and baseline of 14.7b

bsearch290.0ms

Steps
ItersRangePoint
10
0.0038666078177206752
941504501108.8118
0.00391800888554098
10
-121993772661.31783
-0.22068356154967622
-0.22306452923435388

simplify10.0ms

Iterations
IterNodes
done36
136
026

end0.0ms

sample8.3s

Algorithm
intervals
Results
4.6s4457×body1280valid
1.8s665×body2560valid
1.3s1832×body640valid
393.0ms668×body320valid
83.0ms298×body160valid
10.0ms80×body80valid