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 r231597 = x;
        double r231598 = y;
        double r231599 = r231597 - r231598;
        double r231600 = 1.0;
        double r231601 = r231600 - r231598;
        double r231602 = r231599 / r231601;
        return r231602;
}
↓
double f(double x, double y) {
        double r231603 = x;
        double r231604 = 1.0;
        double r231605 = y;
        double r231606 = r231604 - r231605;
        double r231607 = r231603 / r231606;
        double r231608 = r231605 / r231606;
        double r231609 = r231607 - r231608;
        return r231609;
}

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 2020047 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))