Average Error: 0.0 → 0.0
Time: 15.7s
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 r508360 = f;
        double r508361 = n;
        double r508362 = r508360 + r508361;
        double r508363 = -r508362;
        double r508364 = r508360 - r508361;
        double r508365 = r508363 / r508364;
        return r508365;
}
↓
double f(double f, double n) {
        double r508366 = n;
        double r508367 = f;
        double r508368 = r508366 + r508367;
        double r508369 = -r508368;
        double r508370 = r508367 - r508366;
        double r508371 = r508369 / r508370;
        return r508371;
}

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 2019128 
(FPCore (f n)
  :name "subtraction fraction"
  (/ (- (+ f n)) (- f n)))