Details

Time bar (total: 18.0s)

sample231.0ms

Algorithm
intervals
Results
123.0ms109×body1280valid
45.0ms62×body640valid
32.0ms16×body2560valid
10.0ms23×body320valid
5.0ms36×body80valid
3.0ms10×body160valid

simplify10.0ms

Calls
1 calls:
Slowest
10.0ms
(- (sin (+ x eps)) (sin x))

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 35.2b

localize13.0ms

Local error

Found 2 expressions with local error:

2.5b
(sin (+ x eps))
1.2b
(- (sin (+ x eps)) (sin x))

rewrite45.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-log-exp
pow1 add-cbrt-cube sin-sum add-exp-log add-cube-cbrt insert-posit16
sub-neg flip3-- diff-log diff-sin associate--l+ flip-- distribute-lft-out-- difference-of-squares
Calls
2 calls:
Slowest
42.0ms
(- (sin (+ x eps)) (sin x))
2.0ms
(sin (+ x eps))

series57.0ms

Calls
2 calls:
Slowest
39.0ms
(- (sin (+ x eps)) (sin x))
18.0ms
(sin (+ x eps))

simplify667.0ms

Calls
13 calls:
Slowest
423.0ms
(- eps (+ (* 1/2 (* x (pow eps 2))) (* 1/2 (* (pow x 2) eps))))
73.0ms
(* (sin (/ (- (+ x eps) x) 2)) (cos (/ (+ (+ x eps) x) 2)))
70.0ms
(- (+ x eps) (* 1/6 (pow x 3)))
30.0ms
(/ (exp (sin (+ x eps))) (exp (sin x)))
20.0ms
(- (sqrt (sin (+ x eps))) (sqrt (sin x)))

prune345.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.4b

localize26.0ms

Local error

Found 4 expressions with local error:

2.5b
(cos (/ (+ x (+ eps x)) 2))
0.2b
(* (cos (/ (+ x (+ eps x)) 2)) (sin (/ eps 2)))
0.2b
(/ (+ x (+ eps x)) 2)
0.0b
(+ x (+ eps x))

rewrite30.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube add-exp-log
insert-posit16 add-log-exp
associate-*r* associate-*l* associate-/l*
flip3-+ flip-+ associate-/l/
+-commutative associate-+r+ clear-num frac-2neg pow-prod-down prod-exp *-commutative cbrt-unprod div-inv
Calls
4 calls:
Slowest
12.0ms
(* (cos (/ (+ x (+ eps x)) 2)) (sin (/ eps 2)))
12.0ms
(/ (+ x (+ eps x)) 2)
4.0ms
(cos (/ (+ x (+ eps x)) 2))
2.0ms
(+ x (+ eps x))

series159.0ms

Calls
4 calls:
Slowest
84.0ms
(* (cos (/ (+ x (+ eps x)) 2)) (sin (/ eps 2)))
27.0ms
(cos (/ (+ x (+ eps x)) 2))
27.0ms
(/ (+ x (+ eps x)) 2)
22.0ms
(+ x (+ eps x))

simplify2.0s

Calls
24 calls:
Slowest
523.0ms
(- (* x x) (* (+ eps x) (+ eps x)))
462.0ms
(+ (pow x 3) (pow (+ eps x) 3))
314.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
156.0ms
(* (* (* (cos (/ (+ x (+ eps x)) 2)) (cos (/ (+ x (+ eps x)) 2))) (cos (/ (+ x (+ eps x)) 2))) (* (* (sin (/ eps 2)) (sin (/ eps 2))) (sin (/ eps 2))))
148.0ms
(- (* 1/2 eps) (+ (* 1/4 (* x (pow eps 2))) (* 1/4 (* (pow x 2) eps))))

prune697.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0.3b

localize17.0ms

Local error

Found 4 expressions with local error:

2.5b
(cos (/ (+ x (+ eps x)) 2))
2.5b
(cos (/ (+ x (+ eps x)) 2))
2.5b
(cos (/ (+ x (+ eps x)) 2))
0.5b
(cbrt (cos (/ (+ x (+ eps x)) 2)))

rewrite10.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube add-exp-log insert-posit16 add-log-exp
cbrt-prod
pow1/3
Calls
4 calls:
Slowest
3.0ms
(cos (/ (+ x (+ eps x)) 2))
3.0ms
(cos (/ (+ x (+ eps x)) 2))
3.0ms
(cos (/ (+ x (+ eps x)) 2))
1.0ms
(cbrt (cos (/ (+ x (+ eps x)) 2)))

series163.0ms

Calls
4 calls:
Slowest
102.0ms
(cbrt (cos (/ (+ x (+ eps x)) 2)))
23.0ms
(cos (/ (+ x (+ eps x)) 2))
21.0ms
(cos (/ (+ x (+ eps x)) 2))
16.0ms
(cos (/ (+ x (+ eps x)) 2))

simplify1.6s

Calls
15 calls:
Slowest
300.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
299.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
283.0ms
(- 1 (+ (* 1/6 (* x eps)) (* 1/6 (pow x 2))))
252.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
70.0ms
(pow (cos (* 1/2 (+ (* 2 x) eps))) 1/3)

prune718.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0.3b

localize31.0ms

Local error

Found 4 expressions with local error:

2.5b
(cos (/ (+ x (+ eps x)) 2))
2.5b
(cos (/ (+ x (+ eps x)) 2))
2.5b
(cos (/ (+ x (+ eps x)) 2))
0.5b
(cbrt (cos (/ (+ x (+ eps x)) 2)))

rewrite16.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt *-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube add-exp-log insert-posit16 add-log-exp
cbrt-prod
pow1/3
Calls
4 calls:
Slowest
6.0ms
(cos (/ (+ x (+ eps x)) 2))
6.0ms
(cos (/ (+ x (+ eps x)) 2))
3.0ms
(cos (/ (+ x (+ eps x)) 2))
1.0ms
(cbrt (cos (/ (+ x (+ eps x)) 2)))

series125.0ms

Calls
4 calls:
Slowest
74.0ms
(cbrt (cos (/ (+ x (+ eps x)) 2)))
19.0ms
(cos (/ (+ x (+ eps x)) 2))
16.0ms
(cos (/ (+ x (+ eps x)) 2))
16.0ms
(cos (/ (+ x (+ eps x)) 2))

simplify1.5s

Calls
15 calls:
Slowest
280.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
269.0ms
(- 1 (+ (* 1/6 (* x eps)) (* 1/6 (pow x 2))))
255.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
225.0ms
(- 1 (+ (* 1/2 (* x eps)) (* 1/2 (pow x 2))))
59.0ms
(cos (* 1/2 (+ (* 2 x) eps)))

prune699.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 0.3b

regimes169.0ms

Accuracy

98.1% (0.3b remaining)

Error of 0.7b against oracle of 0.4b and baseline of 15.3b

bsearch278.0ms

end0.0ms

sample8.4s

Algorithm
intervals
Results
4.5s3275×body1280valid
1.7s617×body2560valid
1.4s1826×body640valid
357.0ms764×body320valid
199.0ms1117×body80valid
113.0ms401×body160valid