Details

Time bar (total: 20.8s)

sample239.0ms

Algorithm
intervals
Results
153.0ms148×body1280valid
34.0ms20×body2560valid
29.0ms59×body640valid
4.0ms13×body320valid
4.0ms15×body160valid
0.0msbody80valid

simplify14.0ms

Counts
1 → 1

prune10.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 40.6b

localize27.0ms

Local error

Found 2 expressions with local error:

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

rewrite37.0ms

Algorithm
rewrite-expression-head
Rules
11×add-sqr-sqrt *-un-lft-identity
prod-diff add-cube-cbrt
add-log-exp
fma-neg
expm1-log1p-u pow1 cos-sum add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u
associate--l- sub-neg flip3-- diff-log diff-cos flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 42
Calls
2 calls:
Slowest
23.0ms
(- (cos (+ x eps)) (cos x))
14.0ms
(cos (+ x eps))

series126.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
98.0ms
(- (cos (+ x eps)) (cos x))
28.0ms
(cos (+ x eps))

simplify1.4s

Counts
48 → 48

prune547.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.3b

localize35.0ms

Local error

Found 4 expressions with local error:

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

rewrite187.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
11×pow1 add-cbrt-cube add-exp-log
10×add-sqr-sqrt
add-log-exp
add-cube-cbrt
associate-*l*
expm1-log1p-u associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16 log1p-expm1-u
sum-log fma-def distribute-lft-out
*-commutative sin-mult
+-commutative associate-+r+ flip3-+ associate-*r/ flip-+ unswap-sqr
Counts
4 → 75
Calls
4 calls:
Slowest
77.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ eps x)) 2)))
69.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ eps x)) 2))))
20.0ms
(+ x (+ eps x))
19.0ms
(sin (/ (+ x (+ eps x)) 2))

series238.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
86.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ eps x)) 2))))
83.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ eps x)) 2)))
43.0ms
(sin (/ (+ x (+ eps x)) 2))
25.0ms
(+ x (+ eps x))

simplify1.3s

Counts
87 → 87

prune999.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 0.2b

localize25.0ms

Local error

Found 3 expressions with local error:

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

rewrite91.0ms

Algorithm
rewrite-expression-head
Rules
10×*-un-lft-identity
pow1 add-cbrt-cube add-exp-log add-log-exp
add-sqr-sqrt add-cube-cbrt
expm1-log1p-u sum-log fma-def associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16 log1p-expm1-u distribute-lft-out
+-commutative associate-+r+ flip3-+ associate-*l* *-commutative flip-+
Counts
3 → 52
Calls
3 calls:
Slowest
55.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ eps x)) 2)))
24.0ms
(sin (/ (+ x (+ eps x)) 2))
11.0ms
(+ x (+ eps x))

series157.0ms

Counts
3 → 9
Calls
3 calls:
Slowest
87.0ms
(* (* -2 (sin (/ eps 2))) (sin (/ (+ x (+ eps x)) 2)))
43.0ms
(sin (/ (+ x (+ eps x)) 2))
27.0ms
(+ x (+ eps x))

simplify1.7s

Counts
61 → 61

prune703.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.2b

localize34.0ms

Local error

Found 4 expressions with local error:

3.1b
(sin (/ (+ x (+ eps x)) 2))
0.3b
(* (* -2 (sin (/ eps 2))) (log1p (expm1 (sin (/ (+ x (+ eps x)) 2)))))
0.3b
(log1p (expm1 (sin (/ (+ x (+ eps x)) 2))))
0.2b
(expm1 (sin (/ (+ x (+ eps x)) 2)))

rewrite43.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-cbrt-cube add-exp-log
add-sqr-sqrt *-un-lft-identity add-cube-cbrt log1p-expm1-u
expm1-log1p-u insert-posit16 add-log-exp
associate-*r* pow-prod-down prod-exp cbrt-unprod
log1p-udef expm1-log1p associate-*l* log1p-expm1 *-commutative expm1-udef
Counts
4 → 55
Calls
4 calls:
Slowest
23.0ms
(sin (/ (+ x (+ eps x)) 2))
19.0ms
(* (* -2 (sin (/ eps 2))) (log1p (expm1 (sin (/ (+ x (+ eps x)) 2)))))
0.0ms
(expm1 (sin (/ (+ x (+ eps x)) 2)))
0.0ms
(log1p (expm1 (sin (/ (+ x (+ eps x)) 2))))

series336.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
140.0ms
(* (* -2 (sin (/ eps 2))) (log1p (expm1 (sin (/ (+ x (+ eps x)) 2)))))
86.0ms
(log1p (expm1 (sin (/ (+ x (+ eps x)) 2))))
66.0ms
(expm1 (sin (/ (+ x (+ eps x)) 2)))
44.0ms
(sin (/ (+ x (+ eps x)) 2))

simplify3.2s

Counts
67 → 67

prune692.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 0.2b

regimes294.0ms

Accuracy

98% (0.3b remaining)

Error of 0.7b against oracle of 0.4b and baseline of 16.2b

bsearch268.0ms

end0.0ms

sample8.0s

Algorithm
intervals
Results
4.7s4466×body1280valid
1.6s1855×body640valid
1.1s628×body2560valid
316.0ms688×body320valid
97.0ms290×body160valid
9.0ms73×body80valid