Average Error: 0.0 → 0.0
Time: 1.8s
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 r181643 = x;
        double r181644 = y;
        double r181645 = r181643 - r181644;
        double r181646 = 1.0;
        double r181647 = r181646 - r181644;
        double r181648 = r181645 / r181647;
        return r181648;
}
↓
double f(double x, double y) {
        double r181649 = x;
        double r181650 = 1.0;
        double r181651 = y;
        double r181652 = r181650 - r181651;
        double r181653 = r181649 / r181652;
        double r181654 = r181651 / r181652;
        double r181655 = r181653 - r181654;
        return r181655;
}

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 2020060 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))