Details

Time bar (total: 33.8s)

sample235.0ms

Algorithm
intervals
Results
84.0ms80×body1280valid
71.0ms29×body2560valid
27.0ms55×body640valid
23.0ms105×body80valid
7.0ms23×body320valid
6.0ms71×body80nan
4.0ms20×body160valid

simplify3.5s

Counts
1 → 1
Iterations
IterNodes
66722
51463
4420
3150
258
128
010

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 42.1b

localize20.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
1.3b
(- (pow (+ 1 (/ i n)) n) 1)
7.5b
(pow (+ 1 (/ i n)) n)
9.7b
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

rewrite451.0ms

Algorithm
rewrite-expression-head
Rules
584×times-frac
485×add-sqr-sqrt
366×*-un-lft-identity
224×add-cube-cbrt
174×associate-*r*
168×difference-of-squares
88×unpow-prod-down
85×sqr-pow
84×difference-of-sqr-1
29×div-inv
28×distribute-lft-out--
19×add-exp-log
18×add-cbrt-cube
13×associate-/r* associate-/l*
pow1
cbrt-undiv div-exp add-log-exp
insert-posit16
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 → 453
Calls
4 calls:
184.0ms
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
75.0ms
(- (pow (+ 1 (/ i n)) n) 1)
17.0ms
(pow (+ 1 (/ i n)) n)
164.0ms
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

series1.2s

Counts
4 → 12
Calls
4 calls:
334.0ms
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
267.0ms
(- (pow (+ 1 (/ i n)) n) 1)
261.0ms
(pow (+ 1 (/ i n)) n)
341.0ms
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

simplify1.3s

Counts
465 → 465
Iterations
IterNodes
25084
11658
0542

prune3.5s

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 20.9b

localize21.0ms

Local error

Found 4 expressions with local error:

0.4b
(/ (pow (+ 1 (/ i n)) n) (/ i n))
0.4b
(/ 1 (/ i n))
7.5b
(pow (+ 1 (/ i n)) n)
11.9b
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

rewrite142.0ms

Algorithm
rewrite-expression-head
Rules
395×times-frac
286×add-sqr-sqrt
233×*-un-lft-identity
153×add-cube-cbrt
70×unpow-prod-down
35×difference-of-squares
29×add-exp-log
26×associate-/r*
25×sqr-pow
24×div-inv
16×div-exp distribute-lft-out--
15×distribute-lft-out
14×add-cbrt-cube
11×associate-/l*
pow1 cbrt-undiv add-log-exp
distribute-rgt-out-- associate-/r/
insert-posit16
pow-to-exp pow-unpow pow-exp
rec-exp clear-num frac-2neg 1-exp
sub-neg pow-pow flip3-- diff-log frac-sub pow-flip flip-- inv-pow sub-div
Counts
4 → 312
Calls
4 calls:
27.0ms
(/ (pow (+ 1 (/ i n)) n) (/ i n))
6.0ms
(/ 1 (/ i n))
9.0ms
(pow (+ 1 (/ i n)) n)
94.0ms
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

series783.0ms

Counts
4 → 12
Calls
4 calls:
269.0ms
(/ (pow (+ 1 (/ i n)) n) (/ i n))
10.0ms
(/ 1 (/ i n))
212.0ms
(pow (+ 1 (/ i n)) n)
292.0ms
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

simplify835.0ms

Counts
324 → 324
Iterations
IterNodes
23214
11200
0487

prune2.4s

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 6.5b

localize29.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100 (+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2))))
0.2b
(* 1/6 (* n (* i i)))
3.0b
(+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2)))
7.9b
(* n (* i i))

rewrite421.0ms

Algorithm
rewrite-expression-head
Rules
20×pow1 add-cbrt-cube add-exp-log
11×add-sqr-sqrt
10×pow-prod-down prod-exp cbrt-unprod
associate-*l* add-log-exp
*-un-lft-identity add-cube-cbrt
associate-*r*
insert-posit16
sum-log *-commutative
flip3-+ associate-*r/ flip-+ unswap-sqr
distribute-rgt-in +-commutative associate-+l+ distribute-lft-in
Counts
4 → 79
Calls
4 calls:
44.0ms
(* 100 (+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2))))
324.0ms
(* 1/6 (* n (* i i)))
27.0ms
(+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2)))
26.0ms
(* n (* i i))

series182.0ms

Counts
4 → 12
Calls
4 calls:
60.0ms
(* 100 (+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2))))
36.0ms
(* 1/6 (* n (* i i)))
56.0ms
(+ (+ n (* 1/6 (* n (* i i)))) (* i (* n 1/2)))
29.0ms
(* n (* i i))

simplify3.5s

Counts
91 → 91
Iterations
IterNodes
39098
21508
1376
0132

prune843.0ms

Pruning

19 alts after pruning (19 fresh and 0 done)

Merged error: 6.5b

localize19.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ n (* (* n i) (+ (* i 1/6) 1/2)))
0.0b
(* 100 (+ n (* (* n i) (+ (* i 1/6) 1/2))))
0.1b
(* (* n i) (+ (* i 1/6) 1/2))
0.3b
(* i 1/6)

rewrite64.0ms

Algorithm
rewrite-expression-head
Rules
13×add-sqr-sqrt pow1 add-cbrt-cube add-exp-log
*-un-lft-identity associate-*r* add-cube-cbrt
associate-*l*
add-log-exp
pow-prod-down prod-exp cbrt-unprod
associate-*r/ insert-posit16
distribute-rgt-in distribute-lft-in flip3-+ *-commutative flip-+
associate-+r+ unswap-sqr
+-commutative sum-log
Counts
4 → 79
Calls
4 calls:
10.0ms
(+ n (* (* n i) (+ (* i 1/6) 1/2)))
17.0ms
(* 100 (+ n (* (* n i) (+ (* i 1/6) 1/2))))
31.0ms
(* (* n i) (+ (* i 1/6) 1/2))
5.0ms
(* i 1/6)

series245.0ms

Counts
4 → 12
Calls
4 calls:
65.0ms
(+ n (* (* n i) (+ (* i 1/6) 1/2)))
86.0ms
(* 100 (+ n (* (* n i) (+ (* i 1/6) 1/2))))
68.0ms
(* (* n i) (+ (* i 1/6) 1/2))
26.0ms
(* i 1/6)

simplify4.3s

Counts
91 → 91
Iterations
IterNodes
39427
21531
1414
0144

prune569.0ms

Pruning

19 alts after pruning (18 fresh and 1 done)

Merged error: 6.4b

regimes339.0ms

Accuracy

56.6% (11.8b remaining)

Error of 17.9b against oracle of 6.1b and baseline of 33.4b

bsearch365.0ms

Steps
ItersRangePoint
9
3.272698020116576
446233850.42817044
10.814933530045678
10
-141305917583818.8
-305.5104975057943
-310.361827324758

simplify6.0ms

Iterations
IterNodes
244
144
032

end0.0ms

sample8.6s

Algorithm
intervals
Results
3.5s2525×body1280valid
2.8s945×body2560valid
980.0ms1614×body640valid
363.0ms3032×body80valid
337.0ms871×body320valid
268.0ms2195×body80nan
128.0ms447×body160valid
51.0ms11×body5120valid