Average Error: 0.0 → 0.0
Time: 12.4s
Precision: 64
\[\frac{x - y}{1 - y}\]
↓
\[\frac{x}{1 - y} - \frac{y}{1 - y}\]
\frac{x - y}{1 - y}
↓
\frac{x}{1 - y} - \frac{y}{1 - y}
double f(double x, double y) {
        double r11994820 = x;
        double r11994821 = y;
        double r11994822 = r11994820 - r11994821;
        double r11994823 = 1.0;
        double r11994824 = r11994823 - r11994821;
        double r11994825 = r11994822 / r11994824;
        return r11994825;
}
↓
double f(double x, double y) {
        double r11994826 = x;
        double r11994827 = 1.0;
        double r11994828 = y;
        double r11994829 = r11994827 - r11994828;
        double r11994830 = r11994826 / r11994829;
        double r11994831 = r11994828 / r11994829;
        double r11994832 = r11994830 - r11994831;
        return r11994832;
}

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 0.0

    \[\frac{x - y}{1 - y}\]
  2. Using strategy rm

  3. Applied div-sub0.0

    \[\leadsto \color{blue}{\frac{x}{1 - y} - \frac{y}{1 - y}}\]

  4. Final simplification0.0

    \[\leadsto \frac{x}{1 - y} - \frac{y}{1 - y}\]

Reproduce

herbie shell --seed 2019172 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  (/ (- x y) (- 1.0 y)))