Average Error: 0.2 → 0.2
Time: 6.6s
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 r150968 = a;
        double r150969 = acos(r150968);
        double r150970 = -r150969;
        double r150971 = r150968 / r150970;
        return r150971;
}
↓
double f(double a) {
        double r150972 = a;
        double r150973 = acos(r150972);
        double r150974 = -r150973;
        double r150975 = r150972 / r150974;
        return r150975;
}

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 2019291 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))