Average Error: 0.0 → 0.0
Time: 2.5s
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 r199879 = x;
        double r199880 = y;
        double r199881 = r199879 - r199880;
        double r199882 = 1.0;
        double r199883 = r199882 - r199880;
        double r199884 = r199881 / r199883;
        return r199884;
}
↓
double f(double x, double y) {
        double r199885 = x;
        double r199886 = 1.0;
        double r199887 = y;
        double r199888 = r199886 - r199887;
        double r199889 = r199885 / r199888;
        double r199890 = r199887 / r199888;
        double r199891 = r199889 - r199890;
        return r199891;
}

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 2020018 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))