Details

Time bar (total: 7.4s)

sample38.0ms

Algorithm
intervals
Results
8.0ms40×body2560valid
7.0ms187×body80valid
4.0ms23×body1280valid
3.0ms86×body80nan
2.0ms16×body640valid
1.0msbody320valid
0.0msbody5120valid
0.0msbody160valid

simplify45.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (5.0ms)

IterNodesCost
01217
12117
24116
37616
49016
59816
done9816

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 34.4b

localize9.0ms

Local error

Found 4 expressions with local error:

0.5b
(/ (- (sqrt (- (* b b) (* (* 3.0 a) c))) b) (* 3.0 a))
0.8b
(- (* b b) (* (* 3.0 a) c))
1.3b
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
21.1b
(sqrt (- (* b b) (* (* 3.0 a) c)))

rewrite64.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
13×*-un-lft-identity
add-exp-log add-cbrt-cube
add-log-exp
add-cube-cbrt
times-frac sqrt-prod associate-/l* difference-of-squares
pow1
flip3-- flip--
distribute-lft-out--
cbrt-undiv sub-neg sqrt-div diff-log div-exp associate-/l/
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 div-sub prod-exp clear-num associate-/r* cbrt-unprod div-inv
Counts
4 → 72
Calls
4 calls:
36.0ms
(/ (- (sqrt (- (* b b) (* (* 3.0 a) c))) b) (* 3.0 a))
3.0ms
(- (* b b) (* (* 3.0 a) c))
20.0ms
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
4.0ms
(sqrt (- (* b b) (* (* 3.0 a) c)))

series298.0ms

Counts
4 → 12
Calls
4 calls:
105.0ms
(/ (- (sqrt (- (* b b) (* (* 3.0 a) c))) b) (* 3.0 a))
43.0ms
(- (* b b) (* (* 3.0 a) c))
79.0ms
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
70.0ms
(sqrt (- (* b b) (* (* 3.0 a) c)))

simplify469.0ms

Counts
84 → 84
Iterations

Useful iterations: done (466.0ms)

IterNodesCost
01541592
13871490
213171334
done50001326

prune232.0ms

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 5.7b

localize11.0ms

Local error

Found 4 expressions with local error:

0.5b
(/ (- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b) (* 3.0 a))
0.8b
(- (pow b 2) (* 3.0 (* a c)))
1.3b
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
21.1b
(sqrt (- (pow b 2) (* 3.0 (* a c))))

rewrite129.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
13×*-un-lft-identity
add-exp-log add-cbrt-cube
add-log-exp
add-cube-cbrt
times-frac sqrt-prod associate-/l* difference-of-squares
pow1
flip3-- flip--
distribute-lft-out--
cbrt-undiv sub-neg sqrt-div diff-log div-exp associate-/l/
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 div-sub prod-exp clear-num associate-/r* cbrt-unprod div-inv
Counts
4 → 72
Calls
4 calls:
72.0ms
(/ (- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b) (* 3.0 a))
7.0ms
(- (pow b 2) (* 3.0 (* a c)))
40.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
7.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))

series294.0ms

Counts
4 → 12
Calls
4 calls:
104.0ms
(/ (- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b) (* 3.0 a))
47.0ms
(- (pow b 2) (* 3.0 (* a c)))
77.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
66.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))

simplify1.7s

Counts
84 → 84
Iterations

Useful iterations: 3 (433.0ms)

IterNodesCost
01521592
13811482
212411338
348461326
done50001326

prune207.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 5.4b

localize18.0ms

Local error

Found 4 expressions with local error:

1.3b
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
1.3b
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
21.1b
(sqrt (- (pow b 2) (* 3.0 (* a c))))
21.1b
(sqrt (- (pow b 2) (* 3.0 (* a c))))

rewrite93.0ms

Algorithm
rewrite-expression-head
Rules
16×add-sqr-sqrt
10×*-un-lft-identity
sqrt-prod add-log-exp
pow1 add-cube-cbrt
add-exp-log flip3-- sqrt-div add-cbrt-cube flip-- difference-of-squares
sub-neg rem-sqrt-square sqrt-pow1 pow1/2 diff-log distribute-lft-out--
Counts
4 → 60
Calls
4 calls:
39.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
37.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
7.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))
7.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))

series294.0ms

Counts
4 → 12
Calls
4 calls:
79.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
78.0ms
(- (sqrt (- (pow b 2) (* 3.0 (* a c)))) b)
65.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))
70.0ms
(sqrt (- (pow b 2) (* 3.0 (* a c))))

simplify893.0ms

Counts
72 → 72
Iterations

Useful iterations: 3 (212.0ms)

IterNodesCost
0801248
11891096
25931040
321681028
done50001028

prune255.0ms

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 5.4b

localize10.0ms

Local error

Found 4 expressions with local error:

0.4b
(* (* 3.0 a) c)
0.8b
(- (* b b) (* (* 3.0 a) c))
1.3b
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
21.1b
(sqrt (- (* b b) (* (* 3.0 a) c)))

rewrite35.0ms

Algorithm
rewrite-expression-head
Rules
11×add-sqr-sqrt
10×pow1
add-exp-log add-cbrt-cube
*-un-lft-identity add-log-exp
add-cube-cbrt
sqrt-prod
flip3-- associate-*r* pow-prod-down prod-exp flip-- cbrt-unprod
sub-neg sqrt-div diff-log difference-of-squares
rem-sqrt-square sqrt-pow1 pow1/2 associate-*l* *-commutative distribute-lft-out--
Counts
4 → 60
Calls
4 calls:
6.0ms
(* (* 3.0 a) c)
2.0ms
(- (* b b) (* (* 3.0 a) c))
18.0ms
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
7.0ms
(sqrt (- (* b b) (* (* 3.0 a) c)))

series209.0ms

Counts
4 → 12
Calls
4 calls:
19.0ms
(* (* 3.0 a) c)
43.0ms
(- (* b b) (* (* 3.0 a) c))
78.0ms
(- (sqrt (- (* b b) (* (* 3.0 a) c))) b)
69.0ms
(sqrt (- (* b b) (* (* 3.0 a) c)))

simplify472.0ms

Counts
72 → 72
Iterations

Useful iterations: done (470.0ms)

IterNodesCost
01201001
1283903
21077825
done5000821

prune161.0ms

Pruning

10 alts after pruning (8 fresh and 2 done)

Merged error: 5.4b

regimes311.0ms

Accuracy

83% (4.9b remaining)

Error of 10.3b against oracle of 5.5b and baseline of 34.1b

bsearch91.0ms

Steps
ItersRangePoint
8
1.3679096689958957e-81
5.608239720335765e-77
3.84613441880261e-81
7
-3.550313394724354e+57
-2.3888623512096697e+55
-3.124283374205192e+57

simplify3.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03055
13655
done3655

end0.0ms

sample1.1s

Algorithm
intervals
Results
223.0ms1075×body2560valid
212.0ms5843×body80valid
154.0ms906×body1280valid
97.0ms2890×body80nan
61.0ms453×body640valid
27.0ms101×body5120valid
23.0ms234×body320valid
8.0ms119×body160valid