Average Error: 0.0 → 0.0
Time: 10.3s
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 r134692 = x;
        double r134693 = y;
        double r134694 = r134692 - r134693;
        double r134695 = 1.0;
        double r134696 = r134695 - r134693;
        double r134697 = r134694 / r134696;
        return r134697;
}
↓
double f(double x, double y) {
        double r134698 = x;
        double r134699 = 1.0;
        double r134700 = y;
        double r134701 = r134699 - r134700;
        double r134702 = r134698 / r134701;
        double r134703 = r134700 / r134701;
        double r134704 = r134702 - r134703;
        return r134704;
}

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 2019323 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))