Details

Time bar (total: 20.8s)

sample176.0ms

Algorithm
intervals
Results
64.0ms88×body1280valid
63.0ms31×body2560valid
16.0ms52×body640valid
5.0msbody5120valid
4.0ms30×body320valid
4.0ms86×body80valid
3.0ms80×body80nan
2.0ms17×body160valid

simplify2.6s

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01015
12515
25915
313915
433815
598615
6405915
done500015

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 43.7b

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
1.5b
(- (pow (+ 1.0 (/ i n)) n) 1.0)
6.2b
(pow (+ 1.0 (/ i n)) n)
10.7b
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

rewrite814.0ms

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:
328.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
155.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
18.0ms
(pow (+ 1.0 (/ i n)) n)
295.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

series1.2s

Counts
4 → 12
Calls
4 calls:
369.0ms
(* 100.0 (/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n)))
244.0ms
(- (pow (+ 1.0 (/ i n)) n) 1.0)
213.0ms
(pow (+ 1.0 (/ i n)) n)
350.0ms
(/ (- (pow (+ 1.0 (/ i n)) n) 1.0) (/ i n))

simplify1.6s

Counts
293 → 293
Iterations

Useful iterations: done (1.6s)

IterNodesCost
04376469
111836125
237645875
done50015867

prune814.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 18.2b

localize16.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) 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)))
9.4b
(* (pow i 2) (log 1.0))
18.6b
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

rewrite567.0ms

Algorithm
rewrite-expression-head
Rules
144×times-frac
102×add-sqr-sqrt
87×add-cube-cbrt *-un-lft-identity
48×associate-*r*
23×add-exp-log
20×add-cbrt-cube
13×associate-/r*
11×associate-*l*
div-inv add-log-exp
pow1 unswap-sqr
cbrt-undiv log-prod div-exp prod-exp
unpow-prod-down cbrt-unprod
distribute-rgt-in distribute-lft-in sum-log associate-/l*
associate-/r/ *-commutative associate-/l/ unpow2 sqr-pow
+-commutative pow-to-exp associate-+r+ flip3-- frac-2neg flip3-+ div-sub associate-*r/ pow-prod-down pow-exp clear-num log-pow flip-- flip-+
Counts
4 → 186
Calls
4 calls:
19.0ms
(+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n)))
261.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n)))
14.0ms
(* (pow i 2) (log 1.0))
261.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

series586.0ms

Counts
4 → 12
Calls
4 calls:
40.0ms
(+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n)))
213.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n)))
140.0ms
(* (pow i 2) (log 1.0))
192.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) (/ i n))

simplify1.2s

Counts
198 → 198
Iterations

Useful iterations: 2 (504.0ms)

IterNodesCost
03386829
19026613
233866123
done50006123

prune687.0ms

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 7.4b

localize16.0ms

Local error

Found 4 expressions with local error:

0.0b
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i))
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)
9.0b
(/ (- (+ (* 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))

rewrite805.0ms

Algorithm
rewrite-expression-head
Rules
37×add-sqr-sqrt
26×add-cube-cbrt *-un-lft-identity
25×add-exp-log
22×add-cbrt-cube
20×associate-*r*
19×times-frac
12×pow1 associate-*l*
10×prod-exp
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-*r/ div-inv associate-/l/ unpow2 sqr-pow
pow-to-exp flip3-- frac-2neg div-sub associate-*l/ pow-exp clear-num log-pow flip--
Counts
4 → 117
Calls
4 calls:
244.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i))
285.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
258.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
13.0ms
(* (pow i 2) (log 1.0))

series636.0ms

Counts
4 → 12
Calls
4 calls:
153.0ms
(* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i))
205.0ms
(* (* 100.0 (/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)) n)
132.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
146.0ms
(* (pow i 2) (log 1.0))

simplify921.0ms

Counts
129 → 129
Iterations

Useful iterations: 2 (307.0ms)

IterNodesCost
02183765
15323686
218913143
done50013143

prune580.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 7.4b

localize24.0ms

Local error

Found 4 expressions with local error:

9.0b
(/ (- (+ (* 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))

rewrite303.0ms

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:
258.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
13.0ms
(* (pow i 2) (log 1.0))
13.0ms
(* (pow i 2) (log 1.0))
14.0ms
(* (pow i 2) (log 1.0))

series560.0ms

Counts
4 → 12
Calls
4 calls:
137.0ms
(/ (- (+ (* 1.0 i) (+ (* 0.5 (pow i 2)) (* (log 1.0) n))) (* 0.5 (* (pow i 2) (log 1.0)))) i)
142.0ms
(* (pow i 2) (log 1.0))
143.0ms
(* (pow i 2) (log 1.0))
138.0ms
(* (pow i 2) (log 1.0))

simplify727.0ms

Counts
144 → 144
Iterations

Useful iterations: done (723.0ms)

IterNodesCost
01362322
13002231
210311984
done50011774

prune624.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 7.4b

regimes154.0ms

Accuracy

48.6% (12.8b remaining)

Error of 21.0b against oracle of 8.2b and baseline of 33.1b

bsearch221.0ms

Steps
ItersRangePoint
10
1.4247645541724984e-187
3.537376337853017e-175
3.089742171439268e-181
6
5.2254629500859e-285
6.442889750848156e-284
5.321174585513156e-285
7
-344.8786496099632
-2.176521556311946
-2.3466525277232653

simplify5.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
040103
156103
done56103

end0.0ms

sample4.9s

Algorithm
intervals
Results
1.9s1043×body2560valid
1.8s2494×body1280valid
448.0ms1569×body640valid
136.0ms3021×body80valid
132.0ms793×body320valid
73.0ms2273×body80nan
47.0ms470×body160valid
21.0msbody5120valid