Average Error: 0.2 → 0.2
Time: 2.5s
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 r149990 = a;
        double r149991 = acos(r149990);
        double r149992 = -r149991;
        double r149993 = r149990 / r149992;
        return r149993;
}
↓
double f(double a) {
        double r149994 = a;
        double r149995 = acos(r149994);
        double r149996 = -r149995;
        double r149997 = r149994 / r149996;
        return r149997;
}

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 2020059 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))