Average Error: 0.2 → 0.2
Time: 2.4m
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 r23171707 = a;
        double r23171708 = acos(r23171707);
        double r23171709 = -r23171708;
        double r23171710 = r23171707 / r23171709;
        return r23171710;
}
↓
double f(double a) {
        double r23171711 = a;
        double r23171712 = acos(r23171711);
        double r23171713 = -r23171712;
        double r23171714 = r23171711 / r23171713;
        return r23171714;
}

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 2019119 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))