Average Error: 0 → 0
Time: 307.0ms
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 r209139 = x;
        double r209140 = 2.0;
        double r209141 = r209139 * r209140;
        double r209142 = y;
        double r209143 = r209141 - r209142;
        return r209143;
}
↓
double f(double x, double y) {
        double r209144 = x;
        double r209145 = 2.0;
        double r209146 = r209144 * r209145;
        double r209147 = y;
        double r209148 = r209146 - r209147;
        return r209148;
}

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 2020045 +o rules:numerics
(FPCore (x y)
  :name "Data.Colour.RGBSpace.HSL:hsl from colour-2.3.3, C"
  :precision binary64
  (- (* x 2) y))