Average Error: 0.3 → 0.3
Time: 2.7s
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 r139826 = a;
        double r139827 = acos(r139826);
        double r139828 = -r139827;
        double r139829 = r139826 / r139828;
        return r139829;
}
↓
double f(double a) {
        double r139830 = a;
        double r139831 = acos(r139830);
        double r139832 = -r139831;
        double r139833 = r139830 / r139832;
        return r139833;
}

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 2020036 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))