Average Error: 0.3 → 0.3
Time: 14.6s
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 r7218083 = a;
        double r7218084 = acos(r7218083);
        double r7218085 = -r7218084;
        double r7218086 = r7218083 / r7218085;
        return r7218086;
}
↓
double f(double a) {
        double r7218087 = a;
        double r7218088 = acos(r7218087);
        double r7218089 = -r7218088;
        double r7218090 = r7218087 / r7218089;
        return r7218090;
}

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 2019174 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))