Details

Time bar (total: 11.2s)

sample23.0ms

Algorithm
intervals
Results
13.0ms304×body80valid

simplify1.7s

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
01521
13021
28621
335221
4141621
done500021

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 14.1b

localize13.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a))))
0.4b
(/ 1.0 (- (* b b) (* a a)))
3.8b
(- (* b b) (* a a))
9.8b
(* (* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a)))) (- (/ 1.0 a) (/ 1.0 b)))

rewrite102.0ms

Algorithm
rewrite-expression-head
Rules
55×add-sqr-sqrt
47×times-frac
39×*-un-lft-identity
36×add-exp-log add-cbrt-cube
31×add-cube-cbrt
30×associate-*r*
14×frac-times associate-*l*
13×prod-exp cbrt-unprod
12×difference-of-squares
11×pow1
cbrt-undiv div-exp
associate-*r/ associate-*l/
flip3-- flip--
add-log-exp
div-inv distribute-lft-out--
pow-prod-down associate-/r* associate-/r/ frac-sub unswap-sqr
sub-neg associate-/l*
distribute-rgt-in distribute-lft-in *-commutative
frac-2neg diff-log clear-num
Counts
4 → 153
Calls
4 calls:
21.0ms
(* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a))))
5.0ms
(/ 1.0 (- (* b b) (* a a)))
3.0ms
(- (* b b) (* a a))
68.0ms
(* (* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a)))) (- (/ 1.0 a) (/ 1.0 b)))

series218.0ms

Counts
4 → 12
Calls
4 calls:
58.0ms
(* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a))))
40.0ms
(/ 1.0 (- (* b b) (* a a)))
30.0ms
(- (* b b) (* a a))
90.0ms
(* (* (/ PI 2.0) (/ 1.0 (- (* b b) (* a a)))) (- (/ 1.0 a) (/ 1.0 b)))

simplify1.3s

Counts
165 → 165
Iterations

Useful iterations: 2 (617.0ms)

IterNodesCost
02583239
18023164
235182682
done50012682

prune438.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 9.6b

localize12.0ms

Local error

Found 4 expressions with local error:

0.0b
(- (/ 1.0 a) (/ 1.0 b))
0.1b
(/ (/ 1.0 (+ b a)) (- b a))
0.2b
(* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a)))
9.8b
(* (* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a))) (- (/ 1.0 a) (/ 1.0 b)))

rewrite212.0ms

Algorithm
rewrite-expression-head
Rules
350×times-frac
298×*-un-lft-identity
261×add-sqr-sqrt
142×add-cube-cbrt
108×associate-*r*
59×add-exp-log add-cbrt-cube
47×distribute-lft-out--
45×difference-of-squares
33×distribute-lft-out
26×associate-/r/
21×cbrt-undiv div-exp
19×prod-exp cbrt-unprod
18×div-inv associate-/l*
14×frac-times associate-*l*
11×pow1 flip3-+ flip-+
associate-*r/ associate-*l/
flip3-- flip--
add-log-exp unswap-sqr
associate-/r* frac-sub
pow-prod-down
sub-neg
distribute-rgt-in distribute-lft-in *-commutative
frac-2neg diff-log clear-num associate-/l/
Counts
4 → 347
Calls
4 calls:
16.0ms
(- (/ 1.0 a) (/ 1.0 b))
15.0ms
(/ (/ 1.0 (+ b a)) (- b a))
60.0ms
(* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a)))
97.0ms
(* (* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a))) (- (/ 1.0 a) (/ 1.0 b)))

series238.0ms

Counts
4 → 12
Calls
4 calls:
31.0ms
(- (/ 1.0 a) (/ 1.0 b))
51.0ms
(/ (/ 1.0 (+ b a)) (- b a))
59.0ms
(* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a)))
95.0ms
(* (* (/ PI 2.0) (/ (/ 1.0 (+ b a)) (- b a))) (- (/ 1.0 a) (/ 1.0 b)))

simplify524.0ms

Counts
359 → 359
Iterations

Useful iterations: done (508.0ms)

IterNodesCost
04637064
115026659
done50006639

prune845.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.1b

localize17.0ms

Local error

Found 4 expressions with local error:

0.0b
(- (/ 1.0 a) (/ 1.0 b))
0.2b
(/ (* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
0.3b
(* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b)))
0.4b
(* (/ PI 2.0) (/ 1.0 (+ b a)))

rewrite356.0ms

Algorithm
rewrite-expression-head
Rules
66×add-sqr-sqrt
59×add-exp-log add-cbrt-cube
52×*-un-lft-identity
50×times-frac
30×associate-*r*
27×frac-times
26×add-cube-cbrt
22×prod-exp cbrt-unprod
18×cbrt-undiv div-exp
15×associate-*r/ associate-*l/ associate-/l/
14×associate-*l*
12×distribute-lft-out--
11×pow1
10×flip3-- flip-- difference-of-squares
frac-sub
div-inv
add-log-exp
associate-/r*
pow-prod-down associate-/r/ unswap-sqr
sub-neg distribute-lft-out
distribute-rgt-in distribute-lft-in *-commutative
frac-2neg flip3-+ diff-log clear-num flip-+ associate-/l*
Counts
4 → 179
Calls
4 calls:
16.0ms
(- (/ 1.0 a) (/ 1.0 b))
50.0ms
(/ (* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
260.0ms
(* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b)))
21.0ms
(* (/ PI 2.0) (/ 1.0 (+ b a)))

series276.0ms

Counts
4 → 12
Calls
4 calls:
31.0ms
(- (/ 1.0 a) (/ 1.0 b))
91.0ms
(/ (* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
99.0ms
(* (* (/ PI 2.0) (/ 1.0 (+ b a))) (- (/ 1.0 a) (/ 1.0 b)))
54.0ms
(* (/ PI 2.0) (/ 1.0 (+ b a)))

simplify1.8s

Counts
191 → 191
Iterations

Useful iterations: 2 (945.0ms)

IterNodesCost
03043703
19873582
245482962
done50002962

prune455.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0b

localize13.0ms

Local error

Found 4 expressions with local error:

0.0b
(- (/ 1.0 a) (/ 1.0 b))
0.2b
(/ (* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
0.3b
(* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b)))
0.3b
(/ (* (/ PI 2.0) 1.0) (+ b a))

rewrite146.0ms

Algorithm
rewrite-expression-head
Rules
47×add-exp-log add-cbrt-cube
45×add-sqr-sqrt
41×*-un-lft-identity
33×times-frac
17×cbrt-undiv div-exp
15×add-cube-cbrt
14×prod-exp cbrt-unprod
12×associate-*r* distribute-lft-out--
10×associate-*l* difference-of-squares
associate-/r*
associate-/l/
div-inv
pow1 frac-times flip3-- associate-*r/ associate-/r/ flip-- add-log-exp
frac-sub
sub-neg associate-*l/ distribute-lft-out
distribute-rgt-in frac-2neg distribute-lft-in flip3-+ clear-num flip-+ associate-/l*
diff-log pow-prod-down *-commutative unswap-sqr
Counts
4 → 141
Calls
4 calls:
17.0ms
(- (/ 1.0 a) (/ 1.0 b))
36.0ms
(/ (* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
77.0ms
(* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b)))
8.0ms
(/ (* (/ PI 2.0) 1.0) (+ b a))

series287.0ms

Counts
4 → 12
Calls
4 calls:
32.0ms
(- (/ 1.0 a) (/ 1.0 b))
101.0ms
(/ (* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b))) (- b a))
101.0ms
(* (/ (* (/ PI 2.0) 1.0) (+ b a)) (- (/ 1.0 a) (/ 1.0 b)))
53.0ms
(/ (* (/ PI 2.0) 1.0) (+ b a))

simplify1.3s

Counts
153 → 153
Iterations

Useful iterations: 2 (683.0ms)

IterNodesCost
02473005
17522921
234912399
done50002399

prune322.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 0b

regimes80.0ms

Accuracy

0% (0.2b remaining)

Error of 0.3b against oracle of 0.0b and baseline of 0.3b

bsearch0.0ms

simplify1.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01521
11821
done1821

end0.0ms

sample560.0ms

Algorithm
intervals
Results
412.0ms9589×body80valid