Average Error: 0.2 → 0.2
Time: 14.2s
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 r131215 = a;
        double r131216 = acos(r131215);
        double r131217 = -r131216;
        double r131218 = r131215 / r131217;
        return r131218;
}
↓
double f(double a) {
        double r131219 = a;
        double r131220 = acos(r131219);
        double r131221 = -r131220;
        double r131222 = r131219 / r131221;
        return r131222;
}

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 2019196 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))