Details

Time bar (total: 15.6s)

sample39.0ms

Algorithm
intervals
Results
21.0ms104×body1280valid
6.0ms116×body80valid
3.0ms17×body640valid
1.0ms11×body320valid
1.0msbody160valid

simplify5.0ms

Counts
1 → 1
Iterations
IterNodes
312
212
111
06

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 15.5b

localize11.0ms

Local error

Found 2 expressions with local error:

0.0b
(atan (+ N 1))
2.2b
(- (atan (+ N 1)) (atan N))

rewrite10.0ms

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 add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u
sub-neg flip3-- diff-log diff-atan flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 40
Calls
2 calls:
2.0ms
(atan (+ N 1))
7.0ms
(- (atan (+ N 1)) (atan N))

series23.0ms

Counts
2 → 6
Calls
2 calls:
3.0ms
(atan (+ N 1))
20.0ms
(- (atan (+ N 1)) (atan N))

simplify981.0ms

Counts
46 → 46
Iterations
IterNodes
42149
3771
2288
1140
067

prune430.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.6b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(+ 1 (fma N N N))
0.6b
(atan2 1 (+ 1 (fma N N N)))

rewrite5.0ms

Algorithm
rewrite-expression-head
Rules
*-un-lft-identity
add-log-exp
add-sqr-sqrt fma-def add-cube-cbrt
expm1-log1p-u pow1 add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u
+-commutative associate-+r+ sum-log flip3-+ flip-+ fma-udef distribute-lft-out
Counts
2 → 29
Calls
2 calls:
4.0ms
(+ 1 (fma N N N))
0.0ms
(atan2 1 (+ 1 (fma N N N)))

series22.0ms

Counts
2 → 6
Calls
2 calls:
19.0ms
(+ 1 (fma N N N))
2.0ms
(atan2 1 (+ 1 (fma N N N)))

simplify1.4s

Counts
35 → 35
Iterations
IterNodes
43407
3493
2185
197
047

prune375.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.5b

localize33.0ms

Local error

Found 4 expressions with local error:

0.6b
(atan2 1 (+ 1 (fma N N N)))
0.6b
(atan2 1 (+ 1 (fma N N N)))
17.5b
(sqrt (atan2 1 (+ 1 (fma N N N))))
17.5b
(sqrt (atan2 1 (+ 1 (fma N N N))))

rewrite7.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
pow1 *-un-lft-identity add-cube-cbrt sqrt-prod
expm1-log1p-u add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 52
Calls
4 calls:
0.0ms
(atan2 1 (+ 1 (fma N N N)))
0.0ms
(atan2 1 (+ 1 (fma N N N)))
3.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
3.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))

series43.0ms

Counts
4 → 12
Calls
4 calls:
3.0ms
(atan2 1 (+ 1 (fma N N N)))
4.0ms
(atan2 1 (+ 1 (fma N N N)))
19.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
16.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))

simplify4.1s

Counts
64 → 64
Iterations
IterNodes
86234
71474
6594
5243
4131
390
263
144
033

prune723.0ms

Pruning

7 alts after pruning (5 fresh and 2 done)

Merged error: 0.5b

localize29.0ms

Local error

Found 4 expressions with local error:

0.6b
(atan2 1 (+ 1 (fma N N N)))
17.5b
(sqrt (atan2 1 (+ 1 (fma N N N))))
17.5b
(sqrt (atan2 1 (+ 1 (fma N N N))))
17.5b
(sqrt (atan2 1 (+ 1 (fma N N N))))

rewrite4.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
sqrt-prod
pow1 *-un-lft-identity add-cube-cbrt
expm1-log1p-u add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 58
Calls
4 calls:
0.0ms
(atan2 1 (+ 1 (fma N N N)))
1.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
1.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
1.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))

series40.0ms

Counts
4 → 12
Calls
4 calls:
2.0ms
(atan2 1 (+ 1 (fma N N N)))
12.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
12.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))
13.0ms
(sqrt (atan2 1 (+ 1 (fma N N N))))

simplify4.2s

Counts
70 → 70
Iterations
IterNodes
86234
71474
6594
5243
4131
390
263
144
033

prune854.0ms

Pruning

5 alts after pruning (3 fresh and 2 done)

Merged error: 0.5b

regimes123.0ms

Accuracy

0% (0.0b remaining)

Error of 0.4b against oracle of 0.3b and baseline of 0.4b

bsearch0.0ms

simplify2.0ms

Iterations
IterNodes
28
18
05

end0.0ms

sample2.2s

Algorithm
intervals
Results
1.0s2856×body1280valid
599.0ms617×body640valid
352.0ms4043×body80valid
59.0ms310×body320valid
23.0ms174×body160valid