Average Error: 0.2 → 0.2
Time: 18.8s
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 r4853454 = a;
        double r4853455 = acos(r4853454);
        double r4853456 = -r4853455;
        double r4853457 = r4853454 / r4853456;
        return r4853457;
}
↓
double f(double a) {
        double r4853458 = a;
        double r4853459 = acos(r4853458);
        double r4853460 = -r4853459;
        double r4853461 = r4853458 / r4853460;
        return r4853461;
}

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 2019141 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))