Average Error: 0.3 → 0.3
Time: 3.6s
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 r163042 = a;
        double r163043 = acos(r163042);
        double r163044 = -r163043;
        double r163045 = r163042 / r163044;
        return r163045;
}
↓
double f(double a) {
        double r163046 = a;
        double r163047 = acos(r163046);
        double r163048 = -r163047;
        double r163049 = r163046 / r163048;
        return r163049;
}

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 2020034 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))