Average Error: 0.3 → 0.3
Time: 2.8s
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 r247721 = a;
        double r247722 = acos(r247721);
        double r247723 = -r247722;
        double r247724 = r247721 / r247723;
        return r247724;
}
↓
double f(double a) {
        double r247725 = a;
        double r247726 = acos(r247725);
        double r247727 = -r247726;
        double r247728 = r247725 / r247727;
        return r247728;
}

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 2020036 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))