Average Error: 0.1 → 0.1
Time: 5.5s
Precision: 64
Internal Precision: 128
\[0.954929658551372 \cdot x - 0.12900613773279798 \cdot \left(\left(x \cdot x\right) \cdot x\right)\]
↓
\[\left(0.954929658551372 - \left(x \cdot 0.12900613773279798\right) \cdot x\right) \cdot x\]

Error

Bits error versus x

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.1

    \[0.954929658551372 \cdot x - 0.12900613773279798 \cdot \left(\left(x \cdot x\right) \cdot x\right)\]
  2. Using strategy rm

  3. Applied associate-*r*0.1

    \[\leadsto 0.954929658551372 \cdot x - \color{blue}{\left(0.12900613773279798 \cdot \left(x \cdot x\right)\right) \cdot x}\]
  4. Using strategy rm

  5. Applied distribute-rgt-out--0.1

    \[\leadsto \color{blue}{x \cdot \left(0.954929658551372 - 0.12900613773279798 \cdot \left(x \cdot x\right)\right)}\]
  6. Using strategy rm

  7. Applied associate-*r*0.1

    \[\leadsto x \cdot \left(0.954929658551372 - \color{blue}{\left(0.12900613773279798 \cdot x\right) \cdot x}\right)\]

  8. Final simplification0.1

    \[\leadsto \left(0.954929658551372 - \left(x \cdot 0.12900613773279798\right) \cdot x\right) \cdot x\]

Reproduce

herbie shell --seed 2019008 
(FPCore (x)
  :name "Rosa's Benchmark"
  (- (* 0.954929658551372 x) (* 0.12900613773279798 (* (* x x) x))))

Details

Time bar (total: 5.1s)Debug log

sample172.0ms

Algorithm
intervals

simplify75.0ms

Counts
1 → 1
Calls

1 calls. Slowest were:

74.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (* (* x x) x)))

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 0.3b

localize44.0ms

Local error

Found 3 expressions with local error:

0.3b
(* 0.12900613773279798 (* (* x x) x))
0.1b
(* (* x x) x)
0.0b
(- (* 0.954929658551372 x) (* 0.12900613773279798 (* (* x x) x)))

rewrite21.0ms

Algorithm
rewrite-expression-head
Counts
3 → 32
Calls

3 calls. Slowest were:

9.0ms
(* 0.12900613773279798 (* (* x x) x))
5.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (* (* x x) x)))
5.0ms
(* (* x x) x)

series114.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

45.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (* (* x x) x)))
38.0ms
(* 0.12900613773279798 (* (* x x) x))
24.0ms
(* (* x x) x)

simplify271.0ms

Counts
10 → 41
Calls

10 calls. Slowest were:

125.0ms
(/ (exp (* 0.954929658551372 x)) (exp (* 0.12900613773279798 (* (* x x) x))))
61.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))
33.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))

prune241.0ms

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 0.0b

localize8.0ms

Local error

Found 3 expressions with local error:

0.2b
(* 0.12900613773279798 (* x x))
0.1b
(* (* 0.12900613773279798 (* x x)) x)
0.0b
(- (* 0.954929658551372 x) (* (* 0.12900613773279798 (* x x)) x))

rewrite9.0ms

Algorithm
rewrite-expression-head
Counts
3 → 31
Calls

3 calls. Slowest were:

4.0ms
(- (* 0.954929658551372 x) (* (* 0.12900613773279798 (* x x)) x))
4.0ms
(* (* 0.12900613773279798 (* x x)) x)
1.0ms
(* 0.12900613773279798 (* x x))

series111.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

63.0ms
(- (* 0.954929658551372 x) (* (* 0.12900613773279798 (* x x)) x))
27.0ms
(* (* 0.12900613773279798 (* x x)) x)
20.0ms
(* 0.12900613773279798 (* x x))

simplify259.0ms

Counts
11 → 40
Calls

11 calls. Slowest were:

66.0ms
(/ (exp (* 0.954929658551372 x)) (exp (* (* 0.12900613773279798 (* x x)) x)))
44.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))
43.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))

prune303.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize12.0ms

Local error

Found 3 expressions with local error:

0.2b
(* 0.12900613773279798 (* x x))
0.1b
(* x (- 0.954929658551372 (* 0.12900613773279798 (* x x))))
0.0b
(- 0.954929658551372 (* 0.12900613773279798 (* x x)))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
3 → 37
Calls

3 calls. Slowest were:

3.0ms
(* x (- 0.954929658551372 (* 0.12900613773279798 (* x x))))
2.0ms
(* 0.12900613773279798 (* x x))
1.0ms
(- 0.954929658551372 (* 0.12900613773279798 (* x x)))

series115.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

55.0ms
(* x (- 0.954929658551372 (* 0.12900613773279798 (* x x))))
40.0ms
(- 0.954929658551372 (* 0.12900613773279798 (* x x)))
20.0ms
(* 0.12900613773279798 (* x x))

simplify653.0ms

Counts
18 → 46
Calls

18 calls. Slowest were:

168.0ms
(+ (* 0.954929658551372 0.954929658551372) (+ (* (* 0.12900613773279798 (* x x)) (* 0.12900613773279798 (* x x))) (* 0.954929658551372 (* 0.12900613773279798 (* x x)))))
58.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))
57.0ms
(* x (- (* 0.12900613773279798 (* x x))))

prune284.0ms

Pruning

5 alts after pruning (3 fresh and 2 done)

Merged error: 0.0b

localize10.0ms

Local error

Found 3 expressions with local error:

0.1b
(* (* 0.12900613773279798 x) x)
0.1b
(* x (- 0.954929658551372 (* (* 0.12900613773279798 x) x)))
0.0b
(- 0.954929658551372 (* (* 0.12900613773279798 x) x))

rewrite9.0ms

Algorithm
rewrite-expression-head
Counts
3 → 37
Calls

3 calls. Slowest were:

4.0ms
(* (* 0.12900613773279798 x) x)
3.0ms
(* x (- 0.954929658551372 (* (* 0.12900613773279798 x) x)))
1.0ms
(- 0.954929658551372 (* (* 0.12900613773279798 x) x))

series100.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

49.0ms
(* x (- 0.954929658551372 (* (* 0.12900613773279798 x) x)))
32.0ms
(- 0.954929658551372 (* (* 0.12900613773279798 x) x))
19.0ms
(* (* 0.12900613773279798 x) x)

simplify565.0ms

Counts
18 → 46
Calls

18 calls. Slowest were:

145.0ms
(+ (* 0.954929658551372 0.954929658551372) (+ (* (* (* 0.12900613773279798 x) x) (* (* 0.12900613773279798 x) x)) (* 0.954929658551372 (* (* 0.12900613773279798 x) x))))
43.0ms
(* x (- (* (* 0.12900613773279798 x) x)))
41.0ms
(- (* 0.954929658551372 x) (* 0.12900613773279798 (pow x 3)))

prune298.0ms

Pruning

5 alts after pruning (2 fresh and 3 done)

Merged error: 0.0b

regimes98.0ms

Accuracy

0% (0.1b remaining)

Error of 0.1b against oracle of 0.0b and baseline of 0.1b

bsearch1.0ms

end0.0ms

sample1.3s

Algorithm
intervals