Average Error: 0.0 → 0.0
Time: 826.0ms
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 r216884 = x;
        double r216885 = y;
        double r216886 = r216884 - r216885;
        double r216887 = 1.0;
        double r216888 = r216887 - r216885;
        double r216889 = r216886 / r216888;
        return r216889;
}
↓
double f(double x, double y) {
        double r216890 = x;
        double r216891 = 1.0;
        double r216892 = y;
        double r216893 = r216891 - r216892;
        double r216894 = r216890 / r216893;
        double r216895 = r216892 / r216893;
        double r216896 = r216894 - r216895;
        return r216896;
}

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 2020002 +o rules:numerics
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))