Average Error: 0.2 → 0.2
Time: 21.5s
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 r106922 = a;
        double r106923 = acos(r106922);
        double r106924 = -r106923;
        double r106925 = r106922 / r106924;
        return r106925;
}
↓
double f(double a) {
        double r106926 = a;
        double r106927 = acos(r106926);
        double r106928 = -r106927;
        double r106929 = r106926 / r106928;
        return r106929;
}

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 2019325 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))