Average Error: 0.2 → 0.2
Time: 1.9m
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 r3440743 = a;
        double r3440744 = acos(r3440743);
        double r3440745 = -r3440744;
        double r3440746 = r3440743 / r3440745;
        return r3440746;
}
↓
double f(double a) {
        double r3440747 = a;
        double r3440748 = acos(r3440747);
        double r3440749 = -r3440748;
        double r3440750 = r3440747 / r3440749;
        return r3440750;
}

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 2019139 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))