Average Error: 0.0 → 0.0
Time: 17.8s
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 r797847 = x;
        double r797848 = y;
        double r797849 = r797847 - r797848;
        double r797850 = 1.0;
        double r797851 = r797850 - r797848;
        double r797852 = r797849 / r797851;
        return r797852;
}
↓
double f(double x, double y) {
        double r797853 = x;
        double r797854 = 1.0;
        double r797855 = y;
        double r797856 = r797854 - r797855;
        double r797857 = r797853 / r797856;
        double r797858 = r797855 / r797856;
        double r797859 = r797857 - r797858;
        return r797859;
}

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 2019303 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))