Average Error: 0.2 → 0.2
Time: 2.7s
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 r136907 = a;
        double r136908 = acos(r136907);
        double r136909 = -r136908;
        double r136910 = r136907 / r136909;
        return r136910;
}
↓
double f(double a) {
        double r136911 = a;
        double r136912 = acos(r136911);
        double r136913 = -r136912;
        double r136914 = r136911 / r136913;
        return r136914;
}

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 2020018 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))