Average Error: 0.0 → 0.0
Time: 9.8s
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 r688427 = f;
        double r688428 = n;
        double r688429 = r688427 + r688428;
        double r688430 = -r688429;
        double r688431 = r688427 - r688428;
        double r688432 = r688430 / r688431;
        return r688432;
}
↓
double f(double f, double n) {
        double r688433 = n;
        double r688434 = f;
        double r688435 = r688433 + r688434;
        double r688436 = -r688435;
        double r688437 = r688434 - r688433;
        double r688438 = r688436 / r688437;
        return r688438;
}

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