Average Error: 0.2 → 0.2
Time: 2.2m
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 r14369540 = a;
        double r14369541 = acos(r14369540);
        double r14369542 = -r14369541;
        double r14369543 = r14369540 / r14369542;
        return r14369543;
}
↓
double f(double a) {
        double r14369544 = a;
        double r14369545 = acos(r14369544);
        double r14369546 = -r14369545;
        double r14369547 = r14369544 / r14369546;
        return r14369547;
}

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 2019121 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))