Average Error: 0.2 → 0.2
Time: 34.9s
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 r2986131 = a;
        double r2986132 = acos(r2986131);
        double r2986133 = -r2986132;
        double r2986134 = r2986131 / r2986133;
        return r2986134;
}
↓
double f(double a) {
        double r2986135 = a;
        double r2986136 = acos(r2986135);
        double r2986137 = -r2986136;
        double r2986138 = r2986135 / r2986137;
        return r2986138;
}

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 2019165 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))