Details

Time bar (total: 7.2s)

sample71.0ms

Algorithm
intervals
Results
36.0ms98×body1280valid
15.0ms125×body80valid
6.0ms19×body640valid
2.0msbody320valid
1.0msbody160valid

simplify9.0ms

Counts
1 → 1
Iterations
IterNodes
done12
212
111
06

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.6b

localize22.0ms

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))
10.0ms
(- (atan (+ N 1)) (atan N))

series21.0ms

Counts
2 → 6
Calls
2 calls:
2.0ms
(atan (+ N 1))
18.0ms
(- (atan (+ N 1)) (atan N))

simplify1.0s

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

prune269.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.7b

localize9.0ms

Local error

Found 1 expressions with local error:

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

rewrite0.0ms

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:
0.0ms
(atan2 1 (fma N (+ 1 N) 1))

series3.0ms

Counts
1 → 3
Calls
1 calls:
2.0ms
(atan2 1 (fma N (+ 1 N) 1))

simplify1.6s

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

prune85.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.7b

localize19.0ms

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)))

series28.0ms

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)))
12.0ms
(sqrt (atan2 1 (fma N (+ 1 N) 1)))

simplify865.0ms

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

prune437.0ms

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)))

series40.0ms

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

simplify795.0ms

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

prune552.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.7b

regimes24.0ms

Accuracy

0% (0.0b remaining)

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

bsearch0.0ms

simplify1.0ms

Iterations
IterNodes
done8
18
05

end0.0ms

sample1.2s

Algorithm
intervals
Results
729.0ms2854×body1280valid
238.0ms3996×body80valid
110.0ms654×body640valid
45.0ms338×body320valid
14.0ms158×body160valid