Average Error: 0.2 → 0.2
Time: 2.0s
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 r153891 = a;
        double r153892 = acos(r153891);
        double r153893 = -r153892;
        double r153894 = r153891 / r153893;
        return r153894;
}
↓
double f(double a) {
        double r153895 = a;
        double r153896 = acos(r153895);
        double r153897 = -r153896;
        double r153898 = r153895 / r153897;
        return r153898;
}

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 2020033 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))