Average Error: 0.2 → 0.2
Time: 17.5s
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 r72153 = a;
        double r72154 = acos(r72153);
        double r72155 = -r72154;
        double r72156 = r72153 / r72155;
        return r72156;
}
↓
double f(double a) {
        double r72157 = a;
        double r72158 = acos(r72157);
        double r72159 = -r72158;
        double r72160 = r72157 / r72159;
        return r72160;
}

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 2019199 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))