Average Error: 0.2 → 0.2
Time: 13.5s
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 r122281 = a;
        double r122282 = acos(r122281);
        double r122283 = -r122282;
        double r122284 = r122281 / r122283;
        return r122284;
}
↓
double f(double a) {
        double r122285 = a;
        double r122286 = acos(r122285);
        double r122287 = -r122286;
        double r122288 = r122285 / r122287;
        return r122288;
}

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 2020045 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))