Average Error: 0.3 → 0.3
Time: 15.3s
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 r3645540 = a;
        double r3645541 = acos(r3645540);
        double r3645542 = -r3645541;
        double r3645543 = r3645540 / r3645542;
        return r3645543;
}
↓
double f(double a) {
        double r3645544 = a;
        double r3645545 = acos(r3645544);
        double r3645546 = -r3645545;
        double r3645547 = r3645544 / r3645546;
        return r3645547;
}

Error

Bits error versus a

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.3

    \[\frac{a}{-\cos^{-1} a}\]

  2. Final simplification0.3

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2019169 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))