Average Error: 0.0 → 0.0
Time: 11.1s
Precision: 64
\[\frac{x + y}{x - y}\]
↓
\[\frac{y + x}{x - y}\]
\frac{x + y}{x - y}
↓
\frac{y + x}{x - y}
double f(double x, double y) {
        double r19400893 = x;
        double r19400894 = y;
        double r19400895 = r19400893 + r19400894;
        double r19400896 = r19400893 - r19400894;
        double r19400897 = r19400895 / r19400896;
        return r19400897;
}
↓
double f(double x, double y) {
        double r19400898 = y;
        double r19400899 = x;
        double r19400900 = r19400898 + r19400899;
        double r19400901 = r19400899 - r19400898;
        double r19400902 = r19400900 / r19400901;
        return r19400902;
}

Error

Bits error versus x

Bits error versus y

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

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

Derivation

  1. Initial program 0.0

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

  2. Final simplification0.0

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

Reproduce

herbie shell --seed 2019172 
(FPCore (x y)
  :name "Linear.Projection:perspective from linear-1.19.1.3, A"

  :herbie-target
  (/ 1.0 (- (/ x (+ x y)) (/ y (+ x y))))

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