Average Error: 0.0 → 0.0
Time: 10.1s
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 r165168 = x;
        double r165169 = y;
        double r165170 = r165168 - r165169;
        double r165171 = 1.0;
        double r165172 = r165171 - r165169;
        double r165173 = r165170 / r165172;
        return r165173;
}
↓
double f(double x, double y) {
        double r165174 = x;
        double r165175 = 1.0;
        double r165176 = y;
        double r165177 = r165175 - r165176;
        double r165178 = r165174 / r165177;
        double r165179 = r165176 / r165177;
        double r165180 = r165178 - r165179;
        return r165180;
}

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 2019323 
(FPCore (x y)
  :name "Diagrams.Trail:splitAtParam  from diagrams-lib-1.3.0.3, C"
  :precision binary64
  (/ (- x y) (- 1 y)))