Average Error: 0.2 → 0.2
Time: 22.9s
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 r107717 = a;
        double r107718 = acos(r107717);
        double r107719 = -r107718;
        double r107720 = r107717 / r107719;
        return r107720;
}
↓
double f(double a) {
        double r107721 = a;
        double r107722 = acos(r107721);
        double r107723 = -r107722;
        double r107724 = r107721 / r107723;
        return r107724;
}

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))))