Average Error: 0.0 → 0.0
Time: 2.9s
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 r922 = x;
        double r923 = y;
        double r924 = r922 - r923;
        double r925 = 1.0;
        double r926 = r925 - r923;
        double r927 = r924 / r926;
        return r927;
}
↓
double f(double x, double y) {
        double r928 = x;
        double r929 = 1.0;
        double r930 = y;
        double r931 = r929 - r930;
        double r932 = r928 / r931;
        double r933 = r930 / r931;
        double r934 = r932 - r933;
        return r934;
}

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 2020025 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))