Details

sample53.0ms

Algorithm

intervals

Results

25.0ms	57×	body	2560	valid
9.0ms	41×	body	1280	valid
8.0ms	59×	body	640	valid
2.0ms	23×	body	320	valid
2.0ms	63×	body	80	valid
1.0ms	13×	body	160	valid

simplify7.0ms

Algorithm

egg-herbie

Counts

1 → 1

Iterations

Useful iterations: 0 (1.0ms)

Iter	Nodes	Cost
0	13	4
1	21	4
2	26	4
3	28	4
4	28	4

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 32.9b

localize6.0ms

Local error

Found 2 expressions with local error:

1.2b	(- 1.0 (cos x))
17.7b	(/ (- 1.0 (cos x)) (* x x))

rewrite14.0ms

Algorithm

rewrite-expression-head

Rules

17×	`add-sqr-sqrt` `*-un-lft-identity`
11×	`add-cube-cbrt`
9×	`prod-diff`
7×	`add-exp-log` `add-cbrt-cube`
5×	`times-frac` `associate-/l*`
4×	`add-log-exp`
3×	`fma-neg` `distribute-lft-out--` `difference-of-squares`
2×	`pow1` `cbrt-undiv` `expm1-log1p-u` `flip3--` `div-exp` `flip--` `log1p-expm1-u` `associate-/l/`
1×	`sub-neg` `frac-2neg` `diff-log` `div-sub` `prod-exp` `clear-num` `associate-/r*` `cbrt-unprod` `div-inv`

Counts

2 → 58

Calls

2 calls:

3.0ms	(- 1.0 (cos x))
9.0ms	(/ (- 1.0 (cos x)) (* x x))

series64.0ms

Counts

2 → 6

Calls

2 calls:

17.0ms	(- 1.0 (cos x))
47.0ms	(/ (- 1.0 (cos x)) (* x x))

simplify31.0ms

Algorithm

egg-herbie

Counts

64 → 64

Iterations

Useful iterations: 2 (26.0ms)

Iter	Nodes	Cost
0	279	446
1	1006	326
2	5001	317

prune124.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 0.1b

localize9.0ms

Local error

Found 2 expressions with local error:

0.4b	(* 1/24 (pow x 2))
11.6b	(fma (pow x 4) 1/720 (- 1/2 (* 1/24 (pow x 2))))

rewrite7.0ms

Algorithm

rewrite-expression-head

Rules

11×	`add-sqr-sqrt`
8×	`associate-r`
7×	`add-exp-log`
5×	`add-cube-cbrt` `*-un-lft-identity`
4×	`unpow-prod-down` `add-cbrt-cube` `unswap-sqr`
3×	`associate-l` `prod-exp`
2×	`pow1` `expm1-log1p-u` `log1p-expm1-u` `unpow2` `add-log-exp` `sqr-pow`
1×	`pow-to-exp` `pow-exp` `*-commutative` `cbrt-unprod` `fma-udef`

Counts

2 → 39

Calls

2 calls:

5.0ms	(* 1/24 (pow x 2))
0.0ms	(fma (pow x 4) 1/720 (- 1/2 (* 1/24 (pow x 2))))

series67.0ms

Counts

2 → 6

Calls

2 calls:

27.0ms	(* 1/24 (pow x 2))
40.0ms	(fma (pow x 4) 1/720 (- 1/2 (* 1/24 (pow x 2))))

simplify103.0ms

Algorithm

egg-herbie

Counts

45 → 45

Iterations

Useful iterations: 3 (99.0ms)

Iter	Nodes	Cost
0	139	194
1	532	171
2	2601	171
3	5001	170

prune100.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 0.1b

localize7.0ms

Local error

Found 3 expressions with local error:

0.1b	(/ (- 1.0 (cos x)) x)
0.1b	(* (/ 1 x) (/ (- 1.0 (cos x)) x))
1.2b	(- 1.0 (cos x))

rewrite37.0ms

Algorithm

rewrite-expression-head

Rules

69×	`add-sqr-sqrt`
54×	`*-un-lft-identity`
46×	`times-frac`
36×	`add-cube-cbrt`
27×	`add-exp-log`
19×	`associate-r`
17×	`add-cbrt-cube`
13×	`associate-l`
9×	`div-exp` `prod-diff`
8×	`prod-exp` `distribute-lft-out--` `difference-of-squares`
6×	`unswap-sqr`
5×	`pow1` `cbrt-undiv` `associate-/l*` `add-log-exp`
4×	`cbrt-unprod`
3×	`expm1-log1p-u` `fma-neg` `associate-/r*` `log1p-expm1-u` `div-inv`
2×	`rec-exp` `flip3--` `1-exp` `flip--` `associate-/l/`
1×	`frac-times` `sub-neg` `frac-2neg` `diff-log` `div-sub` `associate-r/` `pow-prod-down` `associate-l/` `clear-num` `*-commutative`

Counts

3 → 132

Calls

3 calls:

8.0ms	(/ (- 1.0 (cos x)) x)
21.0ms	(* (/ 1 x) (/ (- 1.0 (cos x)) x))
3.0ms	(- 1.0 (cos x))

series101.0ms

Counts

3 → 9

Calls

3 calls:

40.0ms	(/ (- 1.0 (cos x)) x)
44.0ms	(* (/ 1 x) (/ (- 1.0 (cos x)) x))
17.0ms	(- 1.0 (cos x))

simplify72.0ms

Algorithm

egg-herbie

Counts

141 → 141

Iterations

Useful iterations: 2 (58.0ms)

Iter	Nodes	Cost
0	582	999
1	2640	823
2	5001	787

prune229.0ms

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 0.1b

localize11.0ms

Local error

Found 4 expressions with local error:

0.1b	(log1p (expm1 (- 1.0 (cos x))))
0.1b	(* (/ 1 x) (/ (log1p (expm1 (- 1.0 (cos x)))) x))
0.2b	(expm1 (- 1.0 (cos x)))
1.2b	(- 1.0 (cos x))

rewrite21.0ms

Algorithm

rewrite-expression-head

Rules

44×	`add-sqr-sqrt`
29×	`*-un-lft-identity`
26×	`add-exp-log`
25×	`add-cube-cbrt` `times-frac`
16×	`add-cbrt-cube`
13×	`associate-r` `associate-l`
9×	`prod-diff`
8×	`div-exp` `prod-exp`
6×	`pow1` `add-log-exp` `unswap-sqr`
5×	`log1p-expm1-u`
4×	`cbrt-undiv` `expm1-log1p-u` `cbrt-unprod`
3×	`fma-neg`
2×	`rec-exp` `1-exp` `div-inv`
1×	`frac-times` `sub-neg` `log1p-udef` `expm1-log1p` `flip3--` `diff-log` `log1p-expm1` `associate-r/` `pow-prod-down` `associate-l/` `*-commutative` `flip--` `distribute-lft-out--` `expm1-udef` `difference-of-squares`

Counts

4 → 108

Calls

4 calls:

0.0ms	(log1p (expm1 (- 1.0 (cos x))))
13.0ms	(* (/ 1 x) (/ (log1p (expm1 (- 1.0 (cos x)))) x))
0.0ms	(expm1 (- 1.0 (cos x)))
3.0ms	(- 1.0 (cos x))

series407.0ms

Counts

4 → 12

Calls

4 calls:

140.0ms	(log1p (expm1 (- 1.0 (cos x))))
187.0ms	(* (/ 1 x) (/ (log1p (expm1 (- 1.0 (cos x)))) x))
59.0ms	(expm1 (- 1.0 (cos x)))
21.0ms	(- 1.0 (cos x))

simplify64.0ms

Algorithm

egg-herbie

Counts

120 → 120

Iterations

Useful iterations: 2 (50.0ms)

Iter	Nodes	Cost
0	500	928
1	2205	692
2	5001	635

prune210.0ms

Pruning

10 alts after pruning (8 fresh and 2 done)

Merged error: 0.1b

regimes47.0ms

Accuracy

99.6% (0.1b remaining)

Error of 0.2b against oracle of 0.1b and baseline of 31.5b

bsearch70.0ms

Steps

Iters	Range		Point
10	5.968040026638966e-05	117627206.70733242	0.024083451253618247
10	-64880754058.88788	-2.651420353119469e-05	-0.02660967226737158

simplify2.0ms

Algorithm

egg-herbie

Iterations

Useful iterations: 0 (1.0ms)

Iter	Nodes	Cost
0	32	16
1	32	16

end0.0ms

sample1.5s

Algorithm

intervals

Results

757.0ms	1660×	body	2560	valid
277.0ms	1248×	body	1280	valid
197.0ms	1448×	body	640	valid
96.0ms	918×	body	320	valid
69.0ms	2275×	body	80	valid
31.0ms	451×	body	160	valid