Average Error: 0.2 → 0.2
Time: 35.9s
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 r4204671 = a;
        double r4204672 = acos(r4204671);
        double r4204673 = -r4204672;
        double r4204674 = r4204671 / r4204673;
        return r4204674;
}
↓
double f(double a) {
        double r4204675 = a;
        double r4204676 = acos(r4204675);
        double r4204677 = -r4204676;
        double r4204678 = r4204675 / r4204677;
        return r4204678;
}

Error

Bits error versus a

Try it out

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 2019165 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))