Average Error: 0.3 → 0.3
Time: 7.1s
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 r77433 = a;
        double r77434 = acos(r77433);
        double r77435 = -r77434;
        double r77436 = r77433 / r77435;
        return r77436;
}
↓
double f(double a) {
        double r77437 = a;
        double r77438 = acos(r77437);
        double r77439 = -r77438;
        double r77440 = r77437 / r77439;
        return r77440;
}

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 2019294 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))