Average Error: 0.2 → 0.2
Time: 22.9s
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 r93452 = a;
        double r93453 = acos(r93452);
        double r93454 = -r93453;
        double r93455 = r93452 / r93454;
        return r93455;
}
↓
double f(double a) {
        double r93456 = a;
        double r93457 = acos(r93456);
        double r93458 = -r93457;
        double r93459 = r93456 / r93458;
        return r93459;
}

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 2019303 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))