Details

Time bar (total: 24.6s)

sample208.0ms

Algorithm
intervals
Results
94.0ms38×body2560valid
57.0ms66×body1280valid
18.0ms47×body640valid
8.0ms34×body320valid
6.0ms100×body80valid
3.0ms77×body80nan
1.0msbody160valid

simplify3.6s

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01015
12515
25915
313915
433815
598615
6405915
done500015

prune4.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 39.1b

localize18.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
0.2b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
6.8b
(pow (+ 1.0 (/ i n)) n)
12.1b
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

rewrite1.4s

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 sub-neg pow-pow frac-2neg diff-log div-sub associate-*r/ pow-prod-down pow-exp clear-num *-commutative distribute-lft-out
Counts
4 → 281
Calls
4 calls:
574.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
259.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
33.0ms
(pow (+ 1.0 (/ i n)) n)
523.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

series1.6s

Counts
4 → 12
Calls
4 calls:
483.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
312.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
329.0ms
(pow (+ 1.0 (/ i n)) n)
509.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

simplify2.1s

Counts
293 → 293
Iterations

Useful iterations: done (2.1s)

IterNodesCost
04376469
111836125
237645875
done50015867

prune826.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 22.1b

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0))
0.2b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
6.8b
(pow (+ 1.0 (/ i n)) n)
12.1b
(/ (* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0)) (/ i n))

rewrite724.0ms

Algorithm
rewrite-expression-head
Rules
34×add-sqr-sqrt
31×times-frac
28×*-un-lft-identity
22×add-cube-cbrt
19×add-exp-log
18×add-cbrt-cube
13×associate-/r*
pow1 associate-*r*
cbrt-undiv unpow-prod-down div-exp add-log-exp difference-of-squares
associate-*r/
sub-neg pow-unpow flip3-- associate-*l* prod-exp flip-- cbrt-unprod div-inv sqr-pow
distribute-rgt-in distribute-lft-in associate-/l/ distribute-lft-out--
pow-to-exp pow-pow frac-2neg diff-log pow-prod-down pow-exp clear-num associate-/r/ *-commutative distribute-lft-out associate-/l* unswap-sqr
Counts
4 → 110
Calls
4 calls:
347.0ms
(* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0))
183.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
20.0ms
(pow (+ 1.0 (/ i n)) n)
170.0ms
(/ (* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0)) (/ i n))

series1.1s

Counts
4 → 12
Calls
4 calls:
266.0ms
(* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0))
251.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
218.0ms
(pow (+ 1.0 (/ i n)) n)
379.0ms
(/ (* 100.0 (- (pow (+ 1.0 (/ i n)) n) 1.0)) (/ i n))

simplify966.0ms

Counts
122 → 122
Iterations

Useful iterations: done (963.0ms)

IterNodesCost
02442124
16352020
219711796
done50001788

prune260.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 22.1b

localize10.0ms

Local error

Found 3 expressions with local error:

0.2b
(+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0)))
6.8b
(pow (+ 1.0 (/ i n)) n)
12.1b
(/ (+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0))) (/ i n))

rewrite140.0ms

Algorithm
rewrite-expression-head
Rules
97×times-frac
56×*-un-lft-identity
54×add-sqr-sqrt add-cube-cbrt
16×distribute-lft-out
13×associate-/r*
add-exp-log
add-cbrt-cube
div-inv
add-log-exp
pow1 unpow-prod-down distribute-rgt-neg-out associate-/l*
cbrt-undiv pow-unpow div-exp
flip3-+ div-sub unsub-neg flip-+ associate-/l/
+-commutative pow-to-exp pow-pow frac-2neg pow-exp clear-num sum-log associate-/r/ sqr-pow
Counts
3 → 120
Calls
3 calls:
28.0ms
(+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0)))
20.0ms
(pow (+ 1.0 (/ i n)) n)
87.0ms
(/ (+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0))) (/ i n))

series867.0ms

Counts
3 → 9
Calls
3 calls:
270.0ms
(+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0)))
216.0ms
(pow (+ 1.0 (/ i n)) n)
380.0ms
(/ (+ (* 100.0 (pow (+ 1.0 (/ i n)) n)) (* 100.0 (- 1.0))) (/ i n))

simplify1.2s

Counts
129 → 129
Iterations

Useful iterations: done (1.2s)

IterNodesCost
02733420
16562891
222442740
done50002720

prune350.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 22.1b

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)
0.0b
(/ 100.0 (/ i (* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)))
0.2b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
6.8b
(pow (+ 1.0 (/ i n)) n)

rewrite980.0ms

Algorithm
rewrite-expression-head
Rules
39×times-frac
38×add-sqr-sqrt
32×*-un-lft-identity
26×add-cube-cbrt
16×add-exp-log
15×add-cbrt-cube
10×associate-*l/
associate-/r* associate-/r/
pow1 associate-*l*
unpow-prod-down flip3-- flip-- add-log-exp difference-of-squares
cbrt-undiv div-exp div-inv
pow-unpow associate-*r* associate-/l* sqr-pow
prod-exp cbrt-unprod distribute-lft-out--
pow-to-exp sub-neg pow-pow frac-2neg diff-log pow-prod-down pow-exp clear-num *-commutative distribute-lft-out unswap-sqr
Counts
4 → 114
Calls
4 calls:
533.0ms
(* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)
237.0ms
(/ 100.0 (/ i (* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)))
182.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
23.0ms
(pow (+ 1.0 (/ i n)) n)

series1.2s

Counts
4 → 12
Calls
4 calls:
323.0ms
(* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)
397.0ms
(/ 100.0 (/ i (* (- (pow (+ 1.0 (/ i n)) n) 1.0) n)))
255.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
216.0ms
(pow (+ 1.0 (/ i n)) n)

simplify1.2s

Counts
126 → 126
Iterations

Useful iterations: done (1.2s)

IterNodesCost
02492477
15602343
218332153
done50012132

prune301.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 9.3b

regimes132.0ms

Accuracy

58.7% (10.2b remaining)

Error of 18.5b against oracle of 8.3b and baseline of 33.0b

bsearch166.0ms

Steps
ItersRangePoint
6
110.15968793260775
701.025784686831
116.77955258703142
9
-79465067.8176491
-0.35018159126246495
-0.4112290909641322

simplify5.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03258
14258
done4258

end0.0ms

sample5.2s

Algorithm
intervals
Results
1.9s988×body2560valid
1.9s2507×body1280valid
496.0ms1564×body640valid
162.0ms891×body320valid
137.0ms3043×body80valid
78.0ms2285×body80nan
47.0ms433×body160valid
28.0msbody5120valid