Average Error: 0.2 → 0.3
Time: 15.9s
Precision: 64
\[\frac{a}{-\cos^{-1} a}\]
↓
\[\frac{1}{\frac{-\cos^{-1} a}{a}}\]
\frac{a}{-\cos^{-1} a}
↓
\frac{1}{\frac{-\cos^{-1} a}{a}}
double f(double a) {
        double r10724985 = a;
        double r10724986 = acos(r10724985);
        double r10724987 = -r10724986;
        double r10724988 = r10724985 / r10724987;
        return r10724988;
}
↓
double f(double a) {
        double r10724989 = 1.0;
        double r10724990 = a;
        double r10724991 = acos(r10724990);
        double r10724992 = -r10724991;
        double r10724993 = r10724992 / r10724990;
        double r10724994 = r10724989 / r10724993;
        return r10724994;
}

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. Using strategy rm

  3. Applied clear-num0.3

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

  4. Final simplification0.3

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

Reproduce

herbie shell --seed 2019158 
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))