Average Error: 0.0 → 0.0
Time: 8.9s
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 r149197 = x;
        double r149198 = y;
        double r149199 = r149197 - r149198;
        double r149200 = 1.0;
        double r149201 = r149200 - r149198;
        double r149202 = r149199 / r149201;
        return r149202;
}
↓
double f(double x, double y) {
        double r149203 = x;
        double r149204 = 1.0;
        double r149205 = y;
        double r149206 = r149204 - r149205;
        double r149207 = r149203 / r149206;
        double r149208 = r149205 / r149206;
        double r149209 = r149207 - r149208;
        return r149209;
}

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 2019326 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))