Average Error: 0.2 → 0.2
Time: 27.3s
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 r3695219 = a;
        double r3695220 = acos(r3695219);
        double r3695221 = -r3695220;
        double r3695222 = r3695219 / r3695221;
        return r3695222;
}
↓
double f(double a) {
        double r3695223 = a;
        double r3695224 = acos(r3695223);
        double r3695225 = -r3695224;
        double r3695226 = r3695223 / r3695225;
        return r3695226;
}

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 2019142 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))