Average Error: 0.2 → 0.2
Time: 7.4s
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 r96131 = a;
        double r96132 = acos(r96131);
        double r96133 = -r96132;
        double r96134 = r96131 / r96133;
        return r96134;
}
↓
double f(double a) {
        double r96135 = a;
        double r96136 = acos(r96135);
        double r96137 = -r96136;
        double r96138 = r96135 / r96137;
        return r96138;
}

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 2019297 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))