Average Error: 0.3 → 0.3
Time: 21.5s
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 r56809 = a;
        double r56810 = acos(r56809);
        double r56811 = -r56810;
        double r56812 = r56809 / r56811;
        return r56812;
}
↓
double f(double a) {
        double r56813 = a;
        double r56814 = acos(r56813);
        double r56815 = -r56814;
        double r56816 = r56813 / r56815;
        return r56816;
}

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))))