Average Error: 0.3 → 0.3
Time: 27.4s
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 r4805155 = a;
        double r4805156 = acos(r4805155);
        double r4805157 = -r4805156;
        double r4805158 = r4805155 / r4805157;
        return r4805158;
}
↓
double f(double a) {
        double r4805159 = a;
        double r4805160 = acos(r4805159);
        double r4805161 = -r4805160;
        double r4805162 = r4805159 / r4805161;
        return r4805162;
}

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 2019146 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))