Average Error: 0.2 → 0.2
Time: 20.5s
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 r63947 = a;
        double r63948 = acos(r63947);
        double r63949 = -r63948;
        double r63950 = r63947 / r63949;
        return r63950;
}
↓
double f(double a) {
        double r63951 = a;
        double r63952 = acos(r63951);
        double r63953 = -r63952;
        double r63954 = r63951 / r63953;
        return r63954;
}

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 2019323 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))