Average Error: 0 → 0
Time: 769.0ms
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 r279209 = x;
        double r279210 = 2.0;
        double r279211 = r279209 * r279210;
        double r279212 = r279211 * r279209;
        return r279212;
}
↓
double f(double x) {
        double r279213 = x;
        double r279214 = 2.0;
        double r279215 = r279213 * r279214;
        double r279216 = r279213 * r279215;
        return r279216;
}

Error

Bits error versus x

Try it out

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. Simplified0

    \[\leadsto \color{blue}{x \cdot \left(x \cdot 2\right)}\]

  3. Final simplification0

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

Reproduce

herbie shell --seed 2019174 +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))