Details

Time bar (total: 15.3s)

sample71.0ms

Algorithm
intervals
Results
40.0ms104×body1280valid
10.0ms116×body80valid
6.0ms17×body640valid
3.0ms11×body320valid
1.0msbody160valid

simplify8.0ms

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

localize30.0ms

Local error

Found 2 expressions with local error:

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

rewrite12.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 add-cbrt-cube add-exp-log add-cube-cbrt insert-posit16
sub-neg flip3-- diff-log diff-atan flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 24
Calls
2 calls:
2.0ms
(atan (+ N 1))
9.0ms
(- (atan (+ N 1)) (atan N))

series25.0ms

Counts
2 → 6
Calls
2 calls:
3.0ms
(atan (+ N 1))
22.0ms
(- (atan (+ N 1)) (atan N))

simplify2.1s

Counts
30 → 30
Iterations
IterNodes
65332
51658
4628
3288
2151
177
041

prune181.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.6b

localize14.0ms

Local error

Found 3 expressions with local error:

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

rewrite28.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity
pow1 add-cbrt-cube add-exp-log add-cube-cbrt add-log-exp
associate-*l*
associate-*r* insert-posit16
flip3-+ associate-*l/ flip-+
+-commutative sum-log pow-prod-down prod-exp *-commutative cbrt-unprod distribute-lft-out unswap-sqr
Counts
3 → 42
Calls
3 calls:
12.0ms
(+ 1 (* (+ N 1) N))
15.0ms
(* (+ N 1) N)
0.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))

series69.0ms

Counts
3 → 9
Calls
3 calls:
18.0ms
(+ 1 (* (+ N 1) N))
49.0ms
(* (+ N 1) N)
2.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))

simplify5.3s

Counts
51 → 51
Iterations
IterNodes
48220
31536
2476
1176
072

prune267.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.5b

localize22.0ms

Local error

Found 4 expressions with local error:

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

rewrite2.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
pow1 *-un-lft-identity add-cube-cbrt sqrt-prod
add-cbrt-cube add-exp-log insert-posit16 add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 44
Calls
4 calls:
0.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))
0.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))
1.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))
1.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))

series33.0ms

Counts
4 → 12
Calls
4 calls:
2.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))
2.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))
13.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))
15.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))

simplify2.4s

Counts
56 → 56
Iterations
IterNodes
85941
71332
6544
5246
4152
3106
276
152
032

prune357.0ms

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 0.5b

localize28.0ms

Local error

Found 4 expressions with local error:

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

rewrite3.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
sqrt-prod
pow1 *-un-lft-identity add-cube-cbrt
add-cbrt-cube add-exp-log insert-posit16 add-log-exp
rem-sqrt-square sqrt-pow1 pow1/2
Counts
4 → 50
Calls
4 calls:
0.0ms
(atan2 1 (+ 1 (* (+ N 1) N)))
1.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))
1.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))
1.0ms
(sqrt (atan2 1 (+ 1 (* (+ N 1) N))))

series42.0ms

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

simplify2.3s

Counts
62 → 62
Iterations
IterNodes
85941
71332
6544
5246
4152
3106
276
152
032

prune458.0ms

Pruning

5 alts after pruning (2 fresh and 3 done)

Merged error: 0.5b

regimes54.0ms

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
211
111
06

end0.0ms

sample1.4s

Algorithm
intervals
Results
936.0ms2856×body1280valid
235.0ms4043×body80valid
103.0ms617×body640valid
40.0ms310×body320valid
16.0ms174×body160valid