Details

Time bar (total: 6.0s)

sample27.0ms

Algorithm
intervals
Results
11.0ms256×body80valid
3.0ms256×pre80true

simplify460.0ms

Counts
1 → 1

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.1b

localize9.0ms

Local error

Found 1 expressions with local error:

15.6b
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

rewrite84.0ms

Algorithm
rewrite-expression-head
Rules
22×add-exp-log add-cbrt-cube
prod-exp cbrt-unprod
cbrt-undiv div-exp
associate-*l/ associate-/r/
pow1 add-sqr-sqrt add-cube-cbrt flip3-- frac-2neg *-un-lft-identity times-frac clear-num associate-/r* flip-- div-inv associate-/l* add-log-exp
Counts
1 → 27
Calls
1 calls:
81.0ms
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

series124.0ms

Counts
1 → 3
Calls
1 calls:
124.0ms
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

simplify615.0ms

Counts
30 → 30

prune48.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize25.0ms

Local error

Found 3 expressions with local error:

0.0b
(+ (* (/ 1.0 256.0) (/ 1 (pow i 4))) (+ (* (/ 1.0 64.0) (/ 1 (pow i 2))) (/ 1.0 16.0)))
0.1b
(/ 1 (pow i 4))
0.4b
(/ 1 (pow i 2))

rewrite122.0ms

Algorithm
rewrite-expression-head
Rules
45×times-frac
40×frac-add
36×add-sqr-sqrt add-cube-cbrt *-un-lft-identity
24×unpow-prod-down
21×add-exp-log
15×associate-/r*
12×div-exp
10×frac-times associate-*r/ associate-*l/ un-div-inv
add-log-exp sqr-pow
add-cbrt-cube
pow-to-exp rec-exp 1-exp pow-exp associate-/l*
flip3-+ flip-+
unpow2
pow1 sum-log
cbrt-undiv pow-flip frac-2neg clear-num div-inv inv-pow
+-commutative associate-+r+
Counts
3 → 147
Calls
3 calls:
87.0ms
(+ (* (/ 1.0 256.0) (/ 1 (pow i 4))) (+ (* (/ 1.0 64.0) (/ 1 (pow i 2))) (/ 1.0 16.0)))
16.0ms
(/ 1 (pow i 4))
8.0ms
(/ 1 (pow i 2))

series101.0ms

Counts
3 → 9
Calls
3 calls:
47.0ms
(+ (* (/ 1.0 256.0) (/ 1 (pow i 4))) (+ (* (/ 1.0 64.0) (/ 1 (pow i 2))) (/ 1.0 16.0)))
30.0ms
(/ 1 (pow i 4))
24.0ms
(/ 1 (pow i 2))

simplify1.7s

Counts
156 → 156

prune428.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes16.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 16.1b

bsearch47.0ms

Steps
ItersRangePoint
6
4778.341270437867
50213.17273266738
5532.2798426880145

simplify1.2s

end0.0ms

sample994.0ms

Algorithm
intervals
Results
577.0ms8000×body80valid
202.0ms8000×pre80true