Average Error: 0.2 → 0.2
Time: 16.4s
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 r3072683 = a;
        double r3072684 = acos(r3072683);
        double r3072685 = -r3072684;
        double r3072686 = r3072683 / r3072685;
        return r3072686;
}
↓
double f(double a) {
        double r3072687 = a;
        double r3072688 = acos(r3072687);
        double r3072689 = -r3072688;
        double r3072690 = r3072687 / r3072689;
        return r3072690;
}

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 2019163 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))