Average Error: 0.2 → 0.2
Time: 11.4s
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 r1388268 = a;
        double r1388269 = acos(r1388268);
        double r1388270 = -r1388269;
        double r1388271 = r1388268 / r1388270;
        return r1388271;
}
↓
double f(double a) {
        double r1388272 = a;
        double r1388273 = acos(r1388272);
        double r1388274 = -r1388273;
        double r1388275 = r1388272 / r1388274;
        return r1388275;
}

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 2019156 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))