Average Error: 0.0 → 0.0
Time: 4.4s
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 r17815 = f;
        double r17816 = n;
        double r17817 = r17815 + r17816;
        double r17818 = -r17817;
        double r17819 = r17815 - r17816;
        double r17820 = r17818 / r17819;
        return r17820;
}
↓
double f(double f, double n) {
        double r17821 = f;
        double r17822 = n;
        double r17823 = r17821 + r17822;
        double r17824 = -r17823;
        double r17825 = r17821 - r17822;
        double r17826 = r17824 / r17825;
        return r17826;
}

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 2020021 
(FPCore (f n)
  :name "subtraction fraction"
  :precision binary64
  (/ (- (+ f n)) (- f n)))