Average Error: 0 → 0
Time: 809.0ms
Precision: 64
\[\left(x \cdot 2.0\right) \cdot x\]
↓
\[x \cdot \left(x \cdot 2.0\right)\]
\left(x \cdot 2.0\right) \cdot x
↓
x \cdot \left(x \cdot 2.0\right)
double f(double x) {
        double r21524239 = x;
        double r21524240 = 2.0;
        double r21524241 = r21524239 * r21524240;
        double r21524242 = r21524241 * r21524239;
        return r21524242;
}
↓
double f(double x) {
        double r21524243 = x;
        double r21524244 = 2.0;
        double r21524245 = r21524243 * r21524244;
        double r21524246 = r21524243 * r21524245;
        return r21524246;
}

Error

Bits error versus x

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Results

Enter valid numbers for all inputs

Target

Original0
Target0
Herbie0
\[\left(2.0 \cdot x\right) \cdot x\]

Derivation

  1. Initial program 0

    \[\left(x \cdot 2.0\right) \cdot x\]

  2. Final simplification0

    \[\leadsto x \cdot \left(x \cdot 2.0\right)\]

Reproduce

herbie shell --seed 2019163 
(FPCore (x)
  :name "Numeric.Log:$cexpm1 from log-domain-0.10.2.1, A"

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

  (* (* x 2.0) x))