Average Error: 0.3 → 0.3
Time: 22.2s
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 r56810 = a;
        double r56811 = acos(r56810);
        double r56812 = -r56811;
        double r56813 = r56810 / r56812;
        return r56813;
}
↓
double f(double a) {
        double r56814 = a;
        double r56815 = acos(r56814);
        double r56816 = -r56815;
        double r56817 = r56814 / r56816;
        return r56817;
}

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 2019326 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))