Average Error: 0.3 → 0.3
Time: 10.6s
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 r1459823 = a;
        double r1459824 = acos(r1459823);
        double r1459825 = -r1459824;
        double r1459826 = r1459823 / r1459825;
        return r1459826;
}
↓
double f(double a) {
        double r1459827 = a;
        double r1459828 = acos(r1459827);
        double r1459829 = -r1459828;
        double r1459830 = r1459827 / r1459829;
        return r1459830;
}

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 2019154 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))