Average Error: 0.1 → 0.0
Time: 9.9s
Precision: 64
\[\frac{x + y}{y + y}\]
↓
\[\frac{1}{2} \cdot \frac{x}{y} + \frac{1}{2}\]
\frac{x + y}{y + y}
↓
\frac{1}{2} \cdot \frac{x}{y} + \frac{1}{2}
double f(double x, double y) {
        double r53034503 = x;
        double r53034504 = y;
        double r53034505 = r53034503 + r53034504;
        double r53034506 = r53034504 + r53034504;
        double r53034507 = r53034505 / r53034506;
        return r53034507;
}
↓
double f(double x, double y) {
        double r53034508 = 0.5;
        double r53034509 = x;
        double r53034510 = y;
        double r53034511 = r53034509 / r53034510;
        double r53034512 = r53034508 * r53034511;
        double r53034513 = r53034512 + r53034508;
        return r53034513;
}

Error

Bits error versus x

Bits error versus y

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original0.1
Target0.0
Herbie0.0
\[0.5 \cdot \frac{x}{y} + 0.5\]

Derivation

  1. Initial program 0.1

    \[\frac{x + y}{y + y}\]

  2. Taylor expanded around 0 0.0

    \[\leadsto \color{blue}{\frac{1}{2} \cdot \frac{x}{y} + \frac{1}{2}}\]

  3. Final simplification0.0

    \[\leadsto \frac{1}{2} \cdot \frac{x}{y} + \frac{1}{2}\]

Reproduce

herbie shell --seed 2019174 
(FPCore (x y)
  :name "Data.Random.Distribution.T:$ccdf from random-fu-0.2.6.2"

  :herbie-target
  (+ (* 0.5 (/ x y)) 0.5)

  (/ (+ x y) (+ y y)))