Details

Time bar (total: 12.7s)

sample44.0ms

Algorithm
intervals
Results
18.0ms88×body1280valid
6.0ms45×body640valid
4.0ms169×body80valid
2.0ms23×body320valid
1.0ms13×body160valid

simplify2.5s

Counts
1 → 1
Iterations
IterNodes
done5002
73255
6440
5113
449
326
218
111
06

prune19.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 28.5b

localize13.0ms

Local error

Found 2 expressions with local error:

0.0b
(exp (* a x))
3.1b
(- (exp (* a x)) 1.0)

rewrite13.0ms

Algorithm
rewrite-expression-head
Rules
add-log-exp
add-sqr-sqrt *-un-lft-identity
pow1 add-cbrt-cube add-exp-log add-cube-cbrt
exp-prod sub-neg flip3-- exp-to-pow diff-log flip-- distribute-lft-out-- difference-of-squares rem-exp-log
Counts
2 → 24
Calls
2 calls:
3.0ms
(exp (* a x))
9.0ms
(- (exp (* a x)) 1.0)

series69.0ms

Counts
2 → 6
Calls
2 calls:
28.0ms
(exp (* a x))
41.0ms
(- (exp (* a x)) 1.0)

simplify1.3s

Counts
30 → 30
Iterations
IterNodes
done5000
32000
2389
1116
053

prune151.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 8.2b

localize42.0ms

Local error

Found 4 expressions with local error:

2.4b
(* x (+ (* (* a a) (* 1/2 x)) a))
7.0b
(* (* a a) (* 1/2 x))
10.1b
(+ (* (* 1/6 (pow a 3)) (pow x 3)) (* x (+ (* (* a a) (* 1/2 x)) a)))
18.2b
(* (* 1/6 (pow a 3)) (pow x 3))

rewrite172.0ms

Algorithm
rewrite-expression-head
Rules
44×add-exp-log
30×prod-exp
23×add-cbrt-cube
18×pow1
16×associate-*r*
12×cbrt-unprod
11×add-sqr-sqrt
*-un-lft-identity pow-prod-down add-cube-cbrt
pow-to-exp pow-exp
add-log-exp
associate-*l*
unpow-prod-down cube-prod *-commutative
distribute-rgt-in associate-+r+ distribute-lft-in flip3-+ associate-*r/ flip-+
cube-mult +-commutative sum-log unpow3 unswap-sqr sqr-pow
Counts
4 → 92
Calls
4 calls:
83.0ms
(* x (+ (* (* a a) (* 1/2 x)) a))
37.0ms
(* (* a a) (* 1/2 x))
26.0ms
(+ (* (* 1/6 (pow a 3)) (pow x 3)) (* x (+ (* (* a a) (* 1/2 x)) a)))
22.0ms
(* (* 1/6 (pow a 3)) (pow x 3))

series383.0ms

Counts
4 → 12
Calls
4 calls:
106.0ms
(* x (+ (* (* a a) (* 1/2 x)) a))
45.0ms
(* (* a a) (* 1/2 x))
155.0ms
(+ (* (* 1/6 (pow a 3)) (pow x 3)) (* x (+ (* (* a a) (* 1/2 x)) a)))
77.0ms
(* (* 1/6 (pow a 3)) (pow x 3))

simplify2.4s

Counts
104 → 104
Iterations
IterNodes
done5000
23555
1536
0163

prune526.0ms

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 3.7b

localize26.0ms

Local error

Found 3 expressions with local error:

0.2b
(* (* x x) 1/2)
4.0b
(+ (* (* a a) (* (* x x) 1/2)) (* x a))
16.5b
(* (* a a) (* (* x x) 1/2))

rewrite171.0ms

Algorithm
rewrite-expression-head
Rules
29×pow1 add-cbrt-cube add-exp-log
18×pow-prod-down prod-exp cbrt-unprod
add-sqr-sqrt add-log-exp
*-un-lft-identity associate-*r* add-cube-cbrt
associate-*l* *-commutative
+-commutative sum-log flip3-+ flip-+ unswap-sqr
Counts
3 → 58
Calls
3 calls:
22.0ms
(* (* x x) 1/2)
82.0ms
(+ (* (* a a) (* (* x x) 1/2)) (* x a))
64.0ms
(* (* a a) (* (* x x) 1/2))

series182.0ms

Counts
3 → 9
Calls
3 calls:
53.0ms
(* (* x x) 1/2)
78.0ms
(+ (* (* a a) (* (* x x) 1/2)) (* x a))
51.0ms
(* (* a a) (* (* x x) 1/2))

simplify1.8s

Counts
67 → 67
Iterations
IterNodes
done5001
22424
1315
094

prune228.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.1b

localize3.0ms

rewrite0.0ms

Algorithm
rewrite-expression-head
Rules
Counts
0 → 0

series0.0ms

Counts
0 → 0

simplify0.0ms

Counts
0 → 0
Iterations
IterNodes
done0
00

prune0.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.1b

regimes266.0ms

Accuracy

97.5% (0.5b remaining)

Error of 0.8b against oracle of 0.3b and baseline of 21.9b

bsearch1.0ms

simplify1.0ms

Iterations
IterNodes
done10
110
09

end0.0ms

sample2.4s

Algorithm
intervals
Results
898.0ms2681×body1280valid
681.0ms5474×body80valid
277.0ms1318×body640valid
85.0ms731×body320valid
31.0ms385×body160valid