Average Error: 0.0 → 0.0
Time: 5.2s
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 r153094 = x;
        double r153095 = y;
        double r153096 = r153094 - r153095;
        double r153097 = 1.0;
        double r153098 = r153097 - r153095;
        double r153099 = r153096 / r153098;
        return r153099;
}
↓
double f(double x, double y) {
        double r153100 = x;
        double r153101 = 1.0;
        double r153102 = y;
        double r153103 = r153101 - r153102;
        double r153104 = r153100 / r153103;
        double r153105 = r153102 / r153103;
        double r153106 = r153104 - r153105;
        return r153106;
}

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 2019235 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))