Average Error: 0.0 → 0.0
Time: 11.2s
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 r591736 = f;
        double r591737 = n;
        double r591738 = r591736 + r591737;
        double r591739 = -r591738;
        double r591740 = r591736 - r591737;
        double r591741 = r591739 / r591740;
        return r591741;
}
↓
double f(double f, double n) {
        double r591742 = n;
        double r591743 = f;
        double r591744 = r591742 + r591743;
        double r591745 = -r591744;
        double r591746 = r591743 - r591742;
        double r591747 = r591745 / r591746;
        return r591747;
}

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)))