Average Error: 0.2 → 0.2
Time: 13.8s
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 r111578 = a;
        double r111579 = acos(r111578);
        double r111580 = -r111579;
        double r111581 = r111578 / r111580;
        return r111581;
}
↓
double f(double a) {
        double r111582 = a;
        double r111583 = acos(r111582);
        double r111584 = -r111583;
        double r111585 = r111582 / r111584;
        return r111585;
}

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 2019350 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))