Details

Time bar (total: 7.8s)

sample63.0ms

Algorithm
intervals
Results
35.0ms98×body1280valid
10.0ms125×body80valid
6.0ms19×body640valid
2.0msbody320valid
1.0msbody160valid

simplify10.0ms

Counts
1 → 1
Iterations
IterNodes
done12
212
111
06

prune7.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.6b

localize24.0ms

Local error

Found 2 expressions with local error:

0.0b
(atan (+ N 1))
1.1b
(- (atan (+ N 1)) (atan N))

rewrite14.0ms

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))
11.0ms
(- (atan (+ N 1)) (atan N))

series22.0ms

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

simplify1.3s

Counts
46 → 46
Iterations
IterNodes
done2004
42004
3773
2288
1140
067

prune148.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.7b

localize19.0ms

Local error

Found 1 expressions with local error:

0.7b
(atan2 1 (fma N (+ 1 N) 1))

rewrite1.0ms

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

series4.0ms

Counts
1 → 3
Calls
1 calls:
3.0ms
(atan2 1 (fma N (+ 1 N) 1))

simplify1.7s

Counts
13 → 13
Iterations
IterNodes
done2004
102004
91660
8834
7554
6378
5223
4133
362
237
125
018

prune53.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.7b

localize23.0ms

Local error

Found 4 expressions with local error:

0.7b
(atan2 1 (fma N (+ 1 N) 1))
0.7b
(atan2 1 (fma N (+ 1 N) 1))
14.2b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
14.2b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

rewrite3.0ms

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 (fma N (+ 1 N) 1))
0.0ms
(atan2 1 (fma N (+ 1 N) 1))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

series29.0ms

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

simplify1.0s

Counts
64 → 64
Iterations
IterNodes
done2000
72000
6830
5383
4207
3110
270
147
034

prune263.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.7b

localize21.0ms

Local error

Found 4 expressions with local error:

0.7b
(atan2 1 (fma N (+ 1 N) 1))
14.2b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
14.2b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
14.2b
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

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 (fma N (+ 1 N) 1))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
1.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

series42.0ms

Counts
4 → 12
Calls
4 calls:
2.0ms
(atan2 1 (fma N (+ 1 N) 1))
16.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
12.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))
12.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

simplify995.0ms

Counts
70 → 70
Iterations
IterNodes
done2000
72000
6830
5383
4207
3110
270
147
034

prune289.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.7b

regimes36.0ms

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
done8
18
05

end0.0ms

sample1.7s

Algorithm
intervals
Results
830.0ms2854×body1280valid
526.0ms654×body640valid
215.0ms3996×body80valid
52.0ms338×body320valid
17.0ms158×body160valid