Average Error: 0.3 → 0.3
Time: 15.5s
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 r82385 = a;
        double r82386 = acos(r82385);
        double r82387 = -r82386;
        double r82388 = r82385 / r82387;
        return r82388;
}
↓
double f(double a) {
        double r82389 = a;
        double r82390 = acos(r82389);
        double r82391 = -r82390;
        double r82392 = r82389 / r82391;
        return r82392;
}

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 2019209 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))