Average Error: 0.2 → 0.2
Time: 1.4m
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 r6083241 = a;
        double r6083242 = acos(r6083241);
        double r6083243 = -r6083242;
        double r6083244 = r6083241 / r6083243;
        return r6083244;
}
↓
double f(double a) {
        double r6083245 = a;
        double r6083246 = acos(r6083245);
        double r6083247 = -r6083246;
        double r6083248 = r6083245 / r6083247;
        return r6083248;
}

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 2019151 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))