Average Error: 0 → 0
Time: 334.0ms
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 r199868 = x;
        double r199869 = 2.0;
        double r199870 = r199868 * r199869;
        double r199871 = y;
        double r199872 = r199870 - r199871;
        return r199872;
}
↓
double f(double x, double y) {
        double r199873 = x;
        double r199874 = 2.0;
        double r199875 = r199873 * r199874;
        double r199876 = y;
        double r199877 = r199875 - r199876;
        return r199877;
}

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 2020047 +o rules:numerics
(FPCore (x y)
  :name "Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, C"
  :precision binary64
  (- (* x 2) y))