Average Error: 0.0 → 0.0
Time: 968.0ms
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 r207081 = x;
        double r207082 = y;
        double r207083 = r207081 - r207082;
        double r207084 = 1.0;
        double r207085 = r207084 - r207082;
        double r207086 = r207083 / r207085;
        return r207086;
}
↓
double f(double x, double y) {
        double r207087 = x;
        double r207088 = 1.0;
        double r207089 = y;
        double r207090 = r207088 - r207089;
        double r207091 = r207087 / r207090;
        double r207092 = r207089 / r207090;
        double r207093 = r207091 - r207092;
        return r207093;
}

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 2020039 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))