Average Error: 0.3 → 0.3
Time: 16.7s
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 r136605 = a;
        double r136606 = acos(r136605);
        double r136607 = -r136606;
        double r136608 = r136605 / r136607;
        return r136608;
}
↓
double f(double a) {
        double r136609 = a;
        double r136610 = acos(r136609);
        double r136611 = -r136610;
        double r136612 = r136609 / r136611;
        return r136612;
}

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))))