Average Error: 0.0 → 0.0
Time: 13.3s
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 r5939928 = x;
        double r5939929 = y;
        double r5939930 = r5939928 - r5939929;
        double r5939931 = 1.0;
        double r5939932 = r5939931 - r5939929;
        double r5939933 = r5939930 / r5939932;
        return r5939933;
}
↓
double f(double x, double y) {
        double r5939934 = x;
        double r5939935 = 1.0;
        double r5939936 = y;
        double r5939937 = r5939935 - r5939936;
        double r5939938 = r5939934 / r5939937;
        double r5939939 = r5939936 / r5939937;
        double r5939940 = r5939938 - r5939939;
        return r5939940;
}

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)))