Average Error: 0.3 → 0.3
Time: 16.4s
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 r132874 = a;
        double r132875 = acos(r132874);
        double r132876 = -r132875;
        double r132877 = r132874 / r132876;
        return r132877;
}
↓
double f(double a) {
        double r132878 = a;
        double r132879 = acos(r132878);
        double r132880 = -r132879;
        double r132881 = r132878 / r132880;
        return r132881;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.3

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

  2. Final simplification0.3

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

Reproduce

herbie shell --seed 2019326 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))