Average Error: 0.0 → 0.0
Time: 18.2s
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 r192247 = x;
        double r192248 = y;
        double r192249 = r192247 - r192248;
        double r192250 = 1.0;
        double r192251 = r192250 - r192248;
        double r192252 = r192249 / r192251;
        return r192252;
}
↓
double f(double x, double y) {
        double r192253 = x;
        double r192254 = 1.0;
        double r192255 = y;
        double r192256 = r192254 - r192255;
        double r192257 = r192253 / r192256;
        double r192258 = r192255 / r192256;
        double r192259 = r192257 - r192258;
        return r192259;
}

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 2019303 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))