Average Error: 0.2 → 0.2
Time: 3.2s
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 r132744 = a;
        double r132745 = acos(r132744);
        double r132746 = -r132745;
        double r132747 = r132744 / r132746;
        return r132747;
}
↓
double f(double a) {
        double r132748 = a;
        double r132749 = acos(r132748);
        double r132750 = -r132749;
        double r132751 = r132748 / r132750;
        return r132751;
}

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 2020062 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))