Average Error: 0 → 0
Time: 977.0ms
Precision: 64
\[\left(x \cdot 2\right) \cdot x\]
↓
\[x \cdot \left(x \cdot 2\right)\]
\left(x \cdot 2\right) \cdot x
↓
x \cdot \left(x \cdot 2\right)
double f(double x) {
        double r16837415 = x;
        double r16837416 = 2.0;
        double r16837417 = r16837415 * r16837416;
        double r16837418 = r16837417 * r16837415;
        return r16837418;
}
↓
double f(double x) {
        double r16837419 = x;
        double r16837420 = 2.0;
        double r16837421 = r16837419 * r16837420;
        double r16837422 = r16837419 * r16837421;
        return r16837422;
}

Error

Bits error versus x

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0
Target0
Herbie0
\[\left(2 \cdot x\right) \cdot x\]

Derivation

  1. Initial program 0

    \[\left(x \cdot 2\right) \cdot x\]

  2. Final simplification0

    \[\leadsto x \cdot \left(x \cdot 2\right)\]

Reproduce

herbie shell --seed 2019172 +o rules:numerics
(FPCore (x)
  :name "Numeric.Log:$cexpm1 from log-domain-0.10.2.1, A"

  :herbie-target
  (* (* 2.0 x) x)

  (* (* x 2.0) x))