Average Error: 0 → 0
Time: 628.0ms
Precision: 64
\[x \cdot 2 - y\]
↓
\[x \cdot 2 - y\]
x \cdot 2 - y
↓
x \cdot 2 - y
double f(double x, double y) {
        double r128768 = x;
        double r128769 = 2.0;
        double r128770 = r128768 * r128769;
        double r128771 = y;
        double r128772 = r128770 - r128771;
        return r128772;
}
↓
double f(double x, double y) {
        double r128773 = x;
        double r128774 = 2.0;
        double r128775 = r128773 * r128774;
        double r128776 = y;
        double r128777 = r128775 - r128776;
        return r128777;
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0

    \[x \cdot 2 - y\]

  2. Final simplification0

    \[\leadsto x \cdot 2 - y\]

Reproduce

herbie shell --seed 2019325 +o rules:numerics
(FPCore (x y)
  :name "Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, C"
  :precision binary64
  (- (* x 2) y))