Average Error: 0.0 → 0.0
Time: 2.2s
Precision: 64
\[\frac{-\left(f + n\right)}{f - n}\]
↓
\[\frac{-\left(f + n\right)}{f - n}\]
\frac{-\left(f + n\right)}{f - n}
↓
\frac{-\left(f + n\right)}{f - n}
double f(double f, double n) {
        double r9451 = f;
        double r9452 = n;
        double r9453 = r9451 + r9452;
        double r9454 = -r9453;
        double r9455 = r9451 - r9452;
        double r9456 = r9454 / r9455;
        return r9456;
}
↓
double f(double f, double n) {
        double r9457 = f;
        double r9458 = n;
        double r9459 = r9457 + r9458;
        double r9460 = -r9459;
        double r9461 = r9457 - r9458;
        double r9462 = r9460 / r9461;
        return r9462;
}

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

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

Reproduce

herbie shell --seed 2019208 
(FPCore (f n)
  :name "subtraction fraction"
  :precision binary64
  (/ (- (+ f n)) (- f n)))