Average Error: 0.2 → 0.2
Time: 13.9s
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 r3282468 = a;
        double r3282469 = acos(r3282468);
        double r3282470 = -r3282469;
        double r3282471 = r3282468 / r3282470;
        return r3282471;
}
↓
double f(double a) {
        double r3282472 = a;
        double r3282473 = acos(r3282472);
        double r3282474 = -r3282473;
        double r3282475 = r3282472 / r3282474;
        return r3282475;
}

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 2019162 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))