Average Error: 0.2 → 0.2
Time: 5.3s
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 r123898 = a;
        double r123899 = acos(r123898);
        double r123900 = -r123899;
        double r123901 = r123898 / r123900;
        return r123901;
}
↓
double f(double a) {
        double r123902 = a;
        double r123903 = acos(r123902);
        double r123904 = -r123903;
        double r123905 = r123902 / r123904;
        return r123905;
}

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 2019304 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))