Average Error: 0.3 → 0.3
Time: 2.4s
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 r205409 = a;
        double r205410 = acos(r205409);
        double r205411 = -r205410;
        double r205412 = r205409 / r205411;
        return r205412;
}
↓
double f(double a) {
        double r205413 = a;
        double r205414 = acos(r205413);
        double r205415 = -r205414;
        double r205416 = r205413 / r205415;
        return r205416;
}

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 2020035 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))