Average Error: 0.2 → 0.2
Time: 13.5s
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 r111492 = a;
        double r111493 = acos(r111492);
        double r111494 = -r111493;
        double r111495 = r111492 / r111494;
        return r111495;
}
↓
double f(double a) {
        double r111496 = a;
        double r111497 = acos(r111496);
        double r111498 = -r111497;
        double r111499 = r111496 / r111498;
        return r111499;
}

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 2020042 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))