Average Error: 0.2 → 0.2
Time: 14.2s
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 r114152 = a;
        double r114153 = acos(r114152);
        double r114154 = -r114153;
        double r114155 = r114152 / r114154;
        return r114155;
}
↓
double f(double a) {
        double r114156 = a;
        double r114157 = acos(r114156);
        double r114158 = -r114157;
        double r114159 = r114156 / r114158;
        return r114159;
}

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 2019179 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))