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 r252385 = x;
        double r252386 = y;
        double r252387 = r252385 - r252386;
        double r252388 = 1.0;
        double r252389 = r252388 - r252386;
        double r252390 = r252387 / r252389;
        return r252390;
}
↓
double f(double x, double y) {
        double r252391 = x;
        double r252392 = 1.0;
        double r252393 = y;
        double r252394 = r252392 - r252393;
        double r252395 = r252391 / r252394;
        double r252396 = r252393 / r252394;
        double r252397 = r252395 - r252396;
        return r252397;
}

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 2020036 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))