Average Error: 0.2 → 0.2
Time: 20.7s
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 r59536 = a;
        double r59537 = acos(r59536);
        double r59538 = -r59537;
        double r59539 = r59536 / r59538;
        return r59539;
}
↓
double f(double a) {
        double r59540 = a;
        double r59541 = acos(r59540);
        double r59542 = -r59541;
        double r59543 = r59540 / r59542;
        return r59543;
}

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 2019323 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))