Average Error: 0.2 → 0.2
Time: 15.4s
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 r2914710 = a;
        double r2914711 = acos(r2914710);
        double r2914712 = -r2914711;
        double r2914713 = r2914710 / r2914712;
        return r2914713;
}
↓
double f(double a) {
        double r2914714 = a;
        double r2914715 = acos(r2914714);
        double r2914716 = -r2914715;
        double r2914717 = r2914714 / r2914716;
        return r2914717;
}

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 2019132 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))