Average Error: 0.2 → 0.2
Time: 2.5s
Precision: 64
\[\frac{a}{-\cos^{-1} a}\]
↓
\[\frac{a}{-\cos^{-1} a}\]
\frac{a}{-\cos^{-1} a}
↓
\frac{a}{-\cos^{-1} a}
double f(double a) {
        double r132429 = a;
        double r132430 = acos(r132429);
        double r132431 = -r132430;
        double r132432 = r132429 / r132431;
        return r132432;
}
↓
double f(double a) {
        double r132433 = a;
        double r132434 = acos(r132433);
        double r132435 = -r132434;
        double r132436 = r132433 / r132435;
        return r132436;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.2

    \[\frac{a}{-\cos^{-1} a}\]

  2. Final simplification0.2

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2020049 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))