Average Error: 0.2 → 0.2
Time: 13.1s
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 r1893515 = a;
        double r1893516 = acos(r1893515);
        double r1893517 = -r1893516;
        double r1893518 = r1893515 / r1893517;
        return r1893518;
}
↓
double f(double a) {
        double r1893519 = a;
        double r1893520 = acos(r1893519);
        double r1893521 = -r1893520;
        double r1893522 = r1893519 / r1893521;
        return r1893522;
}

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 2019128 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))