Average Error: 0.3 → 0.3
Time: 25.4s
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 r4624695 = a;
        double r4624696 = acos(r4624695);
        double r4624697 = -r4624696;
        double r4624698 = r4624695 / r4624697;
        return r4624698;
}
↓
double f(double a) {
        double r4624699 = a;
        double r4624700 = acos(r4624699);
        double r4624701 = -r4624700;
        double r4624702 = r4624699 / r4624701;
        return r4624702;
}

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 2019200 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))