Average Error: 0.2 → 0.2
Time: 2.4m
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 r34198241 = a;
        double r34198242 = acos(r34198241);
        double r34198243 = -r34198242;
        double r34198244 = r34198241 / r34198243;
        return r34198244;
}
↓
double f(double a) {
        double r34198245 = a;
        double r34198246 = acos(r34198245);
        double r34198247 = -r34198246;
        double r34198248 = r34198245 / r34198247;
        return r34198248;
}

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 2019128 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))