Average Error: 0.0 → 0.0
Time: 9.9s
Precision: 64
\[\frac{-\left(f + n\right)}{f - n}\]
↓
\[\frac{-\left(n + f\right)}{f - n}\]
\frac{-\left(f + n\right)}{f - n}
↓
\frac{-\left(n + f\right)}{f - n}
double f(double f, double n) {
        double r627542 = f;
        double r627543 = n;
        double r627544 = r627542 + r627543;
        double r627545 = -r627544;
        double r627546 = r627542 - r627543;
        double r627547 = r627545 / r627546;
        return r627547;
}
↓
double f(double f, double n) {
        double r627548 = n;
        double r627549 = f;
        double r627550 = r627548 + r627549;
        double r627551 = -r627550;
        double r627552 = r627549 - r627548;
        double r627553 = r627551 / r627552;
        return r627553;
}

Error

Bits error versus f

Bits error versus n

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.0

    \[\frac{-\left(f + n\right)}{f - n}\]

  2. Final simplification0.0

    \[\leadsto \frac{-\left(n + f\right)}{f - n}\]

Reproduce

herbie shell --seed 2019162 +o rules:numerics
(FPCore (f n)
  :name "subtraction fraction"
  (/ (- (+ f n)) (- f n)))