Details

Time bar (total: 17.8s)

sample271.0ms

Algorithm
intervals
Results
153.0ms129×body1280valid
51.0ms29×body2560valid
39.0ms62×body640valid
12.0ms28×body320valid
2.0msbody160valid
0.0msbody80valid

simplify8.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 42.3b

localize14.0ms

Local error

Found 2 expressions with local error:

0.9b
(- (cos (+ x eps)) (cos x))
4.1b
(cos (+ x eps))

rewrite19.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 cos-sum add-cbrt-cube add-exp-log add-cube-cbrt insert-posit16
associate--l- sub-neg flip3-- diff-log diff-cos flip-- distribute-lft-out-- difference-of-squares
Counts
2 → 26
Calls
2 calls:
12.0ms
(- (cos (+ x eps)) (cos x))
7.0ms
(cos (+ x eps))

series113.0ms

Counts
2 → 6
Calls
2 calls:
70.0ms
(- (cos (+ x eps)) (cos x))
43.0ms
(cos (+ x eps))

simplify1.3s

Counts
32 → 32
Iterations
IterNodes
done2044
52044
41424
3658
2282
1137
067

prune283.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 0.4b

localize23.0ms

Local error

Found 4 expressions with local error:

0.0b
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
0.0b
(+ x (+ x eps))
0.3b
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
4.2b
(sin (/ (+ x (+ x eps)) 2))

rewrite219.0ms

Algorithm
rewrite-expression-head
Rules
12×*-un-lft-identity
11×pow1 add-cbrt-cube add-exp-log
add-sqr-sqrt add-log-exp
add-cube-cbrt
associate-*l*
associate-*r* pow-prod-down prod-exp cbrt-unprod insert-posit16
sum-log distribute-lft-out
*-commutative sin-mult
+-commutative associate-+r+ flip3-+ associate-*r/ flip-+ unswap-sqr
Counts
4 → 64
Calls
4 calls:
71.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
22.0ms
(+ x (+ x eps))
96.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
29.0ms
(sin (/ (+ x (+ x eps)) 2))

series244.0ms

Counts
4 → 12
Calls
4 calls:
88.0ms
(* -2 (* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2))))
31.0ms
(+ x (+ x eps))
83.0ms
(* (sin (/ eps 2)) (sin (/ (+ x (+ x eps)) 2)))
42.0ms
(sin (/ (+ x (+ x eps)) 2))

simplify1.0s

Counts
76 → 76
Iterations
IterNodes
done2008
32008
2826
1291
0123

prune896.0ms

Pruning

13 alts after pruning (13 fresh and 0 done)

Merged error: 0.4b

localize30.0ms

Local error

Found 2 expressions with local error:

0.3b
(* (sin (* eps 1/2)) (* -2 (sin (* 1/2 (+ eps (+ x x))))))
4.2b
(sin (* 1/2 (+ eps (+ x x))))

rewrite76.0ms

Algorithm
rewrite-expression-head
Rules
13×distribute-rgt-in distribute-lft-in
10×sin-sum
pow1 add-cbrt-cube add-exp-log
add-sqr-sqrt *-un-lft-identity associate-*l* pow-prod-down prod-exp add-cube-cbrt cbrt-unprod
insert-posit16 add-log-exp
associate-*r* *-commutative
Counts
2 → 37
Calls
2 calls:
59.0ms
(* (sin (* eps 1/2)) (* -2 (sin (* 1/2 (+ eps (+ x x))))))
16.0ms
(sin (* 1/2 (+ eps (+ x x))))

series169.0ms

Counts
2 → 6
Calls
2 calls:
121.0ms
(* (sin (* eps 1/2)) (* -2 (sin (* 1/2 (+ eps (+ x x))))))
48.0ms
(sin (* 1/2 (+ eps (+ x x))))

simplify957.0ms

Counts
43 → 43
Iterations
IterNodes
done2001
32001
2666
1248
0108

prune523.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 0.1b

localize41.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (sin (* eps 1/2)) (cos (* (+ x x) 1/2)))
0.2b
(* (cos (* eps 1/2)) (sin (* (+ x x) 1/2)))
0.2b
(+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))
0.3b
(* (sin (* eps 1/2)) (* -2 (+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))))

rewrite359.0ms

Algorithm
rewrite-expression-head
Rules
13×add-sqr-sqrt pow1 add-cbrt-cube add-exp-log
*-un-lft-identity associate-*l* add-cube-cbrt
associate-*r*
add-log-exp
pow-prod-down prod-exp cbrt-unprod
distribute-rgt-in distribute-lft-in associate-*r/ insert-posit16
*-commutative
flip3-+ flip-+ unswap-sqr
+-commutative sum-log sin-cos-mult
Counts
4 → 76
Calls
4 calls:
26.0ms
(* (sin (* eps 1/2)) (cos (* (+ x x) 1/2)))
28.0ms
(* (cos (* eps 1/2)) (sin (* (+ x x) 1/2)))
50.0ms
(+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))
255.0ms
(* (sin (* eps 1/2)) (* -2 (+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))))

series460.0ms

Counts
4 → 12
Calls
4 calls:
73.0ms
(* (sin (* eps 1/2)) (cos (* (+ x x) 1/2)))
63.0ms
(* (cos (* eps 1/2)) (sin (* (+ x x) 1/2)))
127.0ms
(+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))
198.0ms
(* (sin (* eps 1/2)) (* -2 (+ (* (sin (* eps 1/2)) (cos (* (+ x x) 1/2))) (* (cos (* eps 1/2)) (sin (* (+ x x) 1/2))))))

simplify1.3s

Counts
88 → 88
Iterations
IterNodes
done2003
32003
21597
1455
0174

prune1.1s

Pruning

15 alts after pruning (15 fresh and 0 done)

Merged error: 0.1b

regimes262.0ms

Accuracy

0% (0.3b remaining)

Error of 0.4b against oracle of 0.1b and baseline of 0.4b

bsearch0.0ms

simplify4.0ms

Iterations
IterNodes
done27
127
018

end0.0ms

sample8.1s

Algorithm
intervals
Results
4.2s4377×body1280valid
2.1s1903×body640valid
1.1s640×body2560valid
356.0ms714×body320valid
73.0ms280×body160valid
11.0ms86×body80valid