Average Error: 0.0 → 0.0
Time: 9.2s
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 r136731 = x;
        double r136732 = y;
        double r136733 = r136731 - r136732;
        double r136734 = 1.0;
        double r136735 = r136734 - r136732;
        double r136736 = r136733 / r136735;
        return r136736;
}
↓
double f(double x, double y) {
        double r136737 = x;
        double r136738 = 1.0;
        double r136739 = y;
        double r136740 = r136738 - r136739;
        double r136741 = r136737 / r136740;
        double r136742 = r136739 / r136740;
        double r136743 = r136741 - r136742;
        return r136743;
}

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 2019199 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  (/ (- x y) (- 1.0 y)))