Average Error: 0.2 → 0.2
Time: 8.9s
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 r2461894 = a;
        double r2461895 = acos(r2461894);
        double r2461896 = -r2461895;
        double r2461897 = r2461894 / r2461896;
        return r2461897;
}
↓
double f(double a) {
        double r2461898 = a;
        double r2461899 = acos(r2461898);
        double r2461900 = -r2461899;
        double r2461901 = r2461898 / r2461900;
        return r2461901;
}

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 2019153 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))