Details

Time bar (total: 38.9s)

sample243.0ms

Algorithm
intervals
Results
93.0ms37×body2560valid
84.0ms77×body1280valid
25.0ms46×body640valid
10.0ms93×body80valid
10.0ms25×body320valid
6.0ms60×body80nan
4.0ms14×body160valid

simplify4.1s

Counts
1 → 1
Iterations
IterNodes
67318
51480
4419
3148
256
126
010

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 40.9b

localize17.0ms

Local error

Found 4 expressions with local error:

0.1b
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
1.1b
(- (pow (+ 1 (/ i n)) n) 1)
6.2b
(pow (+ 1 (/ i n)) n)
11.9b
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

rewrite482.0ms

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:
176.0ms
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
115.0ms
(- (pow (+ 1 (/ i n)) n) 1)
10.0ms
(pow (+ 1 (/ i n)) n)
164.0ms
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

series1.3s

Counts
4 → 12
Calls
4 calls:
367.0ms
(* 100 (/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n)))
266.0ms
(- (pow (+ 1 (/ i n)) n) 1)
289.0ms
(pow (+ 1 (/ i n)) n)
342.0ms
(/ (- (pow (+ 1 (/ i n)) n) 1) (/ i n))

simplify9.2s

Counts
465 → 465
Iterations
IterNodes
25274
11671
0542

prune3.4s

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 22.5b

localize20.0ms

Local error

Found 4 expressions with local error:

0.3b
(/ (pow (+ 1 (/ i n)) n) (/ i n))
0.3b
(/ 1 (/ i n))
6.2b
(pow (+ 1 (/ i n)) n)
13.9b
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

rewrite151.0ms

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:
30.0ms
(/ (pow (+ 1 (/ i n)) n) (/ i n))
6.0ms
(/ 1 (/ i n))
9.0ms
(pow (+ 1 (/ i n)) n)
99.0ms
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

series786.0ms

Counts
4 → 12
Calls
4 calls:
267.0ms
(/ (pow (+ 1 (/ i n)) n) (/ i n))
9.0ms
(/ 1 (/ i n))
218.0ms
(pow (+ 1 (/ i n)) n)
291.0ms
(- (/ (pow (+ 1 (/ i n)) n) (/ i n)) (/ 1 (/ i n)))

simplify2.5s

Counts
324 → 324
Iterations
IterNodes
23035
11199
0487

prune2.2s

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 5.2b

localize25.0ms

Local error

Found 4 expressions with local error:

0.1b
(* 100 (+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6)))))
0.2b
(* (* i i) 1/6)
4.0b
(+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6))))
7.2b
(* n (* (* i i) 1/6))

rewrite130.0ms

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
add-log-exp
*-un-lft-identity add-cube-cbrt
associate-*r* associate-*l*
insert-posit16
sum-log *-commutative
flip3-+ associate-*r/ flip-+ unswap-sqr
distribute-rgt-in +-commutative associate-+r+ distribute-lft-in
Counts
4 → 79
Calls
4 calls:
59.0ms
(* 100 (+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6)))))
14.0ms
(* (* i i) 1/6)
22.0ms
(+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6))))
34.0ms
(* n (* (* i i) 1/6))

series122.0ms

Counts
4 → 12
Calls
4 calls:
32.0ms
(* 100 (+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6)))))
26.0ms
(* (* i i) 1/6)
34.0ms
(+ (* (* 1/2 i) n) (+ n (* n (* (* i i) 1/6))))
29.0ms
(* n (* (* i i) 1/6))

simplify2.9s

Counts
91 → 91
Iterations
IterNodes
39084
21663
1383
0135

prune559.0ms

Pruning

16 alts after pruning (16 fresh and 0 done)

Merged error: 5.2b

localize20.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (* 50 i) n)
0.3b
(* (* i i) 50/3)
2.9b
(* (+ 100 (* (* i i) 50/3)) n)
4.0b
(+ (* (* 50 i) n) (* (+ 100 (* (* i i) 50/3)) n))

rewrite56.0ms

Algorithm
rewrite-expression-head
Rules
16×pow1 add-cbrt-cube add-exp-log
11×add-sqr-sqrt
associate-*r*
*-un-lft-identity add-cube-cbrt
pow-prod-down prod-exp cbrt-unprod
add-log-exp
associate-*l*
insert-posit16
*-commutative
flip3-+ associate-*l/ flip-+ unswap-sqr
+-commutative sum-log distribute-rgt-out
Counts
4 → 73
Calls
4 calls:
15.0ms
(* (* 50 i) n)
14.0ms
(* (* i i) 50/3)
11.0ms
(* (+ 100 (* (* i i) 50/3)) n)
15.0ms
(+ (* (* 50 i) n) (* (+ 100 (* (* i i) 50/3)) n))

series127.0ms

Counts
4 → 12
Calls
4 calls:
20.0ms
(* (* 50 i) n)
26.0ms
(* (* i i) 50/3)
46.0ms
(* (+ 100 (* (* i i) 50/3)) n)
35.0ms
(+ (* (* 50 i) n) (* (+ 100 (* (* i i) 50/3)) n))

simplify3.0s

Counts
85 → 85
Iterations
IterNodes
35349
21355
1373
0130

prune457.0ms

Pruning

18 alts after pruning (17 fresh and 1 done)

Merged error: 5.2b

regimes200.0ms

Accuracy

55.9% (11.9b remaining)

Error of 18.1b against oracle of 6.2b and baseline of 33.3b

bsearch212.0ms

Steps
ItersRangePoint
10
9.569100293735598e-08
43862.50504651285
1.4921312295942013
5
-737653.907965734
-246175.07200187352
-249306.0470798354

simplify6.0ms

Iterations
IterNodes
245
145
035

end0.0ms

sample6.7s

Algorithm
intervals
Results
2.6s2514×body1280valid
2.1s994×body2560valid
862.0ms1614×body640valid
340.0ms3079×body80valid
290.0ms836×body320valid
162.0ms2265×body80nan
76.0ms416×body160valid
32.0msbody5120valid