Average Error: 0.0 → 0.0
Time: 13.5s
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 r4326338 = x;
        double r4326339 = y;
        double r4326340 = r4326338 - r4326339;
        double r4326341 = 1.0;
        double r4326342 = r4326341 - r4326339;
        double r4326343 = r4326340 / r4326342;
        return r4326343;
}
↓
double f(double x, double y) {
        double r4326344 = x;
        double r4326345 = 1.0;
        double r4326346 = y;
        double r4326347 = r4326345 - r4326346;
        double r4326348 = r4326344 / r4326347;
        double r4326349 = r4326346 / r4326347;
        double r4326350 = r4326348 - r4326349;
        return r4326350;
}

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 2019172 +o rules:numerics
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  (/ (- x y) (- 1.0 y)))