Average Error: 0.2 → 0.2
Time: 17.6s
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 r4805008 = a;
        double r4805009 = acos(r4805008);
        double r4805010 = -r4805009;
        double r4805011 = r4805008 / r4805010;
        return r4805011;
}
↓
double f(double a) {
        double r4805012 = a;
        double r4805013 = acos(r4805012);
        double r4805014 = -r4805013;
        double r4805015 = r4805012 / r4805014;
        return r4805015;
}

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 2019170 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))