Details

Time bar (total: 32.6s)

sample256.0ms

Algorithm
intervals
Results
99.0ms89×body1280valid
95.0ms35×body2560valid
21.0ms46×body640valid
8.0ms33×body320valid
6.0ms86×body80valid
4.0ms73×body80nan
1.0msbody160valid

simplify2.4s

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
010414
125414
259414
3140414
4347414
51535414
done5000414

prune4.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 45.9b

localize19.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
1.6b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
5.3b
(pow (+ 1.0 (/ i n)) n)
11.4b
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

rewrite1.0s

Algorithm
rewrite-expression-head
Rules
320×times-frac
289×add-sqr-sqrt
198×*-un-lft-identity
140×add-cube-cbrt
96×associate-*r*
84×difference-of-squares
32×unpow-prod-down
29×sqr-pow
28×distribute-lft-out--
19×add-exp-log
18×add-cbrt-cube
17×div-inv
13×associate-/r*
pow1 associate-/l*
cbrt-undiv div-exp add-log-exp
pow-unpow associate-*l* prod-exp cbrt-unprod unswap-sqr
flip3-- associate-/r/ flip-- associate-/l/
pow-to-exp clear-num sub-neg pow-pow frac-2neg diff-log div-sub pow-prod-down pow-exp associate-*r/ *-commutative distribute-lft-out
Counts
4 → 281
Calls
4 calls:
383.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
183.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
23.0ms
(pow (+ 1.0 (/ i n)) n)
415.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

series1.6s

Counts
4 → 12
Calls
4 calls:
533.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
347.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
281.0ms
(pow (+ 1.0 (/ i n)) n)
486.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

simplify2.0s

Counts
293 → 293
Iterations

Useful iterations: done (1.9s)

IterNodesCost
0437186805
11418179104
done5001176377

prune1.9s

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 22.6b

localize45.0ms

Local error

Found 4 expressions with local error:

0.0b
(* (* i i) 0.5)
0.1b
(* 100.0 (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n)))
8.2b
(* (* 0.5 (log 1.0)) (* i i))
18.8b
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n))

rewrite1.6s

Algorithm
rewrite-expression-head
Rules
144×times-frac
93×add-sqr-sqrt
83×*-un-lft-identity add-cube-cbrt
48×associate-*r*
35×add-cbrt-cube add-exp-log
23×pow1
14×prod-exp cbrt-unprod
13×associate-/r*
12×pow-prod-down
div-inv
cbrt-undiv div-exp
associate-*l*
add-log-exp unswap-sqr
*-commutative associate-/l*
associate-/r/ associate-/l/
clear-num associate-+r- frac-2neg flip3-+ div-sub associate-*r/ flip-+
Counts
4 → 180
Calls
4 calls:
14.0ms
(* (* i i) 0.5)
682.0ms
(* 100.0 (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n)))
42.0ms
(* (* 0.5 (log 1.0)) (* i i))
886.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n))

series779.0ms

Counts
4 → 12
Calls
4 calls:
41.0ms
(* (* i i) 0.5)
275.0ms
(* 100.0 (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n)))
184.0ms
(* (* 0.5 (log 1.0)) (* i i))
278.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) (/ i n))

simplify1.9s

Counts
192 → 192
Iterations

Useful iterations: done (1.9s)

IterNodesCost
0320117783
1971112193
done5001110407

prune1.4s

Pruning

16 alts after pruning (16 fresh and 0 done)

Merged error: 10.8b

localize41.0ms

Local error

Found 4 expressions with local error:

0.0b
(* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n)
0.1b
(* 100.0 (* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n))
7.7b
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
8.2b
(* (* 0.5 (log 1.0)) (* i i))

rewrite1.9s

Algorithm
rewrite-expression-head
Rules
32×add-cbrt-cube add-exp-log
26×add-sqr-sqrt
23×pow1
21×*-un-lft-identity add-cube-cbrt
19×times-frac
17×associate-*l*
15×prod-exp cbrt-unprod
12×pow-prod-down
associate-*r*
add-log-exp
cbrt-undiv associate-/r* div-exp *-commutative associate-/l*
associate-*l/ div-inv unswap-sqr associate-/l/
clear-num associate-+r- frac-2neg flip3-+ div-sub associate-*r/ flip-+
Counts
4 → 105
Calls
4 calls:
621.0ms
(* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n)
500.0ms
(* 100.0 (* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n))
732.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
37.0ms
(* (* 0.5 (log 1.0)) (* i i))

series1.1s

Counts
4 → 12
Calls
4 calls:
222.0ms
(* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n)
541.0ms
(* 100.0 (* (/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i) n))
181.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
203.0ms
(* (* 0.5 (log 1.0)) (* i i))

simplify2.5s

Counts
117 → 117
Iterations

Useful iterations: 2 (1.1s)

IterNodesCost
019964325
155561382
2301360741
done500060741

prune618.0ms

Pruning

15 alts after pruning (14 fresh and 1 done)

Merged error: 10.8b

localize51.0ms

Local error

Found 4 expressions with local error:

0.6b
(cbrt n)
0.6b
(cbrt n)
7.7b
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
8.2b
(* (* 0.5 (log 1.0)) (* i i))

rewrite729.0ms

Algorithm
rewrite-expression-head
Rules
18×add-cbrt-cube add-exp-log
16×pow1
14×add-sqr-sqrt *-un-lft-identity add-cube-cbrt
times-frac
pow-prod-down prod-exp cbrt-unprod
cbrt-prod
add-log-exp
associate-/r* associate-/l*
pow1/3 associate-/l/
cbrt-undiv clear-num associate-+r- frac-2neg flip3-+ div-sub div-exp associate-*r* associate-*l* *-commutative flip-+ div-inv
Counts
4 → 74
Calls
4 calls:
1.0ms
(cbrt n)
1.0ms
(cbrt n)
697.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
25.0ms
(* (* 0.5 (log 1.0)) (* i i))

series880.0ms

Counts
4 → 12
Calls
4 calls:
274.0ms
(cbrt n)
237.0ms
(cbrt n)
165.0ms
(/ (+ (* (log 1.0) n) (- (+ (* (* i i) 0.5) (* 1.0 i)) (* (* 0.5 (log 1.0)) (* i i)))) i)
203.0ms
(* (* 0.5 (log 1.0)) (* i i))

simplify1.7s

Counts
86 → 86
Iterations

Useful iterations: done (1.7s)

IterNodesCost
013733382
134831452
2186831174
done500030455

prune434.0ms

Pruning

15 alts after pruning (14 fresh and 1 done)

Merged error: 10.8b

regimes581.0ms

Accuracy

53.1% (10.7b remaining)

Error of 21.7b against oracle of 11.0b and baseline of 33.8b

bsearch299.0ms

Steps
ItersRangePoint
9
3.0812599035097804e-09
7.830610238325062
4.039962480132393
9
-69051.06592837533
-4.7512835972832904e-05
-0.008529206764181105

simplify13.0ms

Iterations

Useful iterations: 0 (4.0ms)

IterNodesCost
0331308
1491308
done491308

end0.0ms

sample6.7s

Algorithm
intervals
Results
2.7s962×body2560valid
2.3s2469×body1280valid
686.0ms1584×body640valid
270.0ms3111×body80valid
229.0ms878×body320valid
197.0ms2251×body80nan
63.0ms451×body160valid
42.0ms11×body5120valid