Average Error: 0.3 → 0.3
Time: 3.1m
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 r19072609 = a;
        double r19072610 = acos(r19072609);
        double r19072611 = -r19072610;
        double r19072612 = r19072609 / r19072611;
        return r19072612;
}
↓
double f(double a) {
        double r19072613 = a;
        double r19072614 = acos(r19072613);
        double r19072615 = -r19072614;
        double r19072616 = r19072613 / r19072615;
        return r19072616;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.3

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

  2. Final simplification0.3

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

Reproduce

herbie shell --seed 2019120 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))