Average Error: 0.0 → 0.0
Time: 28.7s
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 r1004479 = f;
        double r1004480 = n;
        double r1004481 = r1004479 + r1004480;
        double r1004482 = -r1004481;
        double r1004483 = r1004479 - r1004480;
        double r1004484 = r1004482 / r1004483;
        return r1004484;
}
↓
double f(double f, double n) {
        double r1004485 = n;
        double r1004486 = f;
        double r1004487 = r1004485 + r1004486;
        double r1004488 = -r1004487;
        double r1004489 = r1004486 - r1004485;
        double r1004490 = r1004488 / r1004489;
        return r1004490;
}

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