Details

Time bar (total: 2.5min)

sample36.5s

Algorithm
intervals
Results
77.0ms94×body1280valid
63.0ms30×body2560valid
24.0ms61×body640valid
7.0ms32×body320valid
5.0ms72×body80valid
3.0ms73×body80nan
1.0ms11×body160valid

simplify43.0ms

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
0257
1597
21417
33467
411717
550017

prune3.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 48.1b

Counts
2 → 1

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
1.0b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
5.1b
(pow (+ 1.0 (/ i n)) n)
9.2b
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

rewrite86.0ms

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:
32.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
10.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
9.0ms
(pow (+ 1.0 (/ i n)) n)
17.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

series185.0ms

Counts
4 → 12
Calls
4 calls:
63.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
35.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
25.0ms
(pow (+ 1.0 (/ i n)) n)
61.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

simplify61.0ms

Algorithm
egg-herbie
Counts
293 → 293
Iterations

Useful iterations: 1 (30.0ms)

IterNodesCost
012263285
150023166

prune568.0ms

Filtered
223 candidates to 293 candidates (-31.4%)
Pruning

5 alts after pruning (5 fresh and 0 done)

PrunedKeptTotal
New2885293
Fresh000
Picked101
Done000
Total2895294

Merged error: 21.5b

Counts
294 → 5

localize17.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 0.5 (pow i 2))
0.1b
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n)))
9.4b
(* (pow i 2) (log 1.0))
16.1b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

rewrite55.0ms

Algorithm
rewrite-expression-head
Rules
144×times-frac
111×add-sqr-sqrt
90×add-cube-cbrt *-un-lft-identity
56×associate-*r*
28×add-exp-log
22×add-cbrt-cube
14×associate-*l*
13×associate-/r*
11×unswap-sqr
prod-exp div-inv
unpow-prod-down
pow1
cbrt-undiv log-prod div-exp
cbrt-unprod
unpow2 add-log-exp sqr-pow
distribute-rgt-in distribute-lft-in *-commutative associate-/l*
pow-to-exp pow-exp associate-/r/ associate-/l/
flip3-- frac-2neg div-sub associate-*r/ pow-prod-down clear-num log-pow flip--
Counts
4 → 200
Calls
4 calls:
5.0ms
(* 0.5 (pow i 2))
19.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n)))
6.0ms
(* (pow i 2) (log 1.0))
14.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

series54.0ms

Counts
4 → 12
Calls
4 calls:
3.0ms
(* 0.5 (pow i 2))
20.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n)))
12.0ms
(* (pow i 2) (log 1.0))
19.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

simplify147.0ms

Algorithm
egg-herbie
Counts
212 → 212
Iterations

Useful iterations: 1 (25.0ms)

IterNodesCost
09073537
148563275
250013275

prune762.0ms

Filtered
157 candidates to 212 candidates (-35.0%)
Pruning

14 alts after pruning (14 fresh and 0 done)

PrunedKeptTotal
New20210212
Fresh044
Picked101
Done000
Total20314217

Merged error: 12.0b

Counts
217 → 14

localize17.0ms

Local error

Found 4 expressions with local error:

0.0b
(* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n)
0.1b
(* 100.0 (* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n))
8.9b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
9.4b
(* (pow i 2) (log 1.0))

rewrite46.0ms

Algorithm
rewrite-expression-head
Rules
37×add-sqr-sqrt
26×add-cube-cbrt *-un-lft-identity
25×add-exp-log
24×associate-*l*
22×add-cbrt-cube
19×times-frac
12×pow1
10×prod-exp
associate-*r* cbrt-unprod
log-prod unswap-sqr
unpow-prod-down pow-prod-down add-log-exp
cbrt-undiv distribute-rgt-in distribute-lft-in div-exp associate-/r* *-commutative associate-/l*
associate-*l/ div-inv associate-/l/ unpow2 sqr-pow
pow-to-exp flip3-- frac-2neg div-sub associate-*r/ pow-exp clear-num log-pow flip--
Counts
4 → 117
Calls
4 calls:
13.0ms
(* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n)
11.0ms
(* 100.0 (* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n))
11.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
6.0ms
(* (pow i 2) (log 1.0))

series66.0ms

Counts
4 → 12
Calls
4 calls:
18.0ms
(* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n)
20.0ms
(* 100.0 (* (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i) n))
15.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
12.0ms
(* (pow i 2) (log 1.0))

simplify82.0ms

Algorithm
egg-herbie
Counts
129 → 129
Iterations

Useful iterations: 2 (61.0ms)

IterNodesCost
05291979
124351684
250011679

prune370.0ms

Filtered
87 candidates to 129 candidates (-48.3%)
Pruning

14 alts after pruning (14 fresh and 0 done)

PrunedKeptTotal
New1272129
Fresh11213
Picked101
Done000
Total12914143

Merged error: 12.0b

Counts
143 → 14

localize22.0ms

Local error

Found 4 expressions with local error:

8.9b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
9.4b
(* (pow i 2) (log 1.0))
9.4b
(* (pow i 2) (log 1.0))
9.4b
(* (pow i 2) (log 1.0))

rewrite34.0ms

Algorithm
rewrite-expression-head
Rules
45×add-sqr-sqrt
27×add-cube-cbrt *-un-lft-identity
24×associate-*l*
21×add-exp-log
18×log-prod
12×unpow-prod-down associate-*r* add-cbrt-cube unswap-sqr
distribute-rgt-in distribute-lft-in times-frac prod-exp
pow1
unpow2 sqr-pow
add-log-exp
pow-to-exp pow-exp associate-/r* log-pow *-commutative cbrt-unprod associate-/l*
associate-/l/
cbrt-undiv flip3-- frac-2neg div-sub div-exp clear-num flip-- div-inv
Counts
4 → 132
Calls
4 calls:
11.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
6.0ms
(* (pow i 2) (log 1.0))
6.0ms
(* (pow i 2) (log 1.0))
6.0ms
(* (pow i 2) (log 1.0))

series53.0ms

Counts
4 → 12
Calls
4 calls:
14.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
12.0ms
(* (pow i 2) (log 1.0))
12.0ms
(* (pow i 2) (log 1.0))
15.0ms
(* (pow i 2) (log 1.0))

simplify53.0ms

Algorithm
egg-herbie
Counts
144 → 144
Iterations

Useful iterations: 2 (39.0ms)

IterNodesCost
02991229
113591100
250021086

prune823.0ms

Filtered
93 candidates to 144 candidates (-54.8%)
Pruning

14 alts after pruning (13 fresh and 1 done)

PrunedKeptTotal
New1440144
Fresh01313
Picked011
Done000
Total14414158

Merged error: 12.0b

Counts
158 → 14

regimes238.0ms

bsearch1.8min

Steps
ItersRangePoint
2
-1.3842874789493627e-55
-1.2682083669452866e-55
-1.3697775899488533e-55
8
-2.318802276254284e-31
-4.142044256199816e-35
-4.200608487693905e-35
4
-1.10633546830749e-09
-6.027505595534932e-10
-1.0803305644382406e-09

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