Average Error: 0.0 → 0.0
Time: 8.9s
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 r240754 = x;
        double r240755 = y;
        double r240756 = r240754 - r240755;
        double r240757 = 1.0;
        double r240758 = r240757 - r240755;
        double r240759 = r240756 / r240758;
        return r240759;
}
↓
double f(double x, double y) {
        double r240760 = x;
        double r240761 = 1.0;
        double r240762 = y;
        double r240763 = r240761 - r240762;
        double r240764 = r240760 / r240763;
        double r240765 = r240762 / r240763;
        double r240766 = r240764 - r240765;
        return r240766;
}

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 2020042 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))