Average Error: 0.0 → 0.0
Time: 9.1s
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 r232133 = x;
        double r232134 = y;
        double r232135 = r232133 - r232134;
        double r232136 = 1.0;
        double r232137 = r232136 - r232134;
        double r232138 = r232135 / r232137;
        return r232138;
}
↓
double f(double x, double y) {
        double r232139 = x;
        double r232140 = 1.0;
        double r232141 = y;
        double r232142 = r232140 - r232141;
        double r232143 = r232139 / r232142;
        double r232144 = r232141 / r232142;
        double r232145 = r232143 - r232144;
        return r232145;
}

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 2020046 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))