Average Error: 0.2 → 0.2
Time: 11.4s
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 r1437062 = a;
        double r1437063 = acos(r1437062);
        double r1437064 = -r1437063;
        double r1437065 = r1437062 / r1437064;
        return r1437065;
}
↓
double f(double a) {
        double r1437066 = a;
        double r1437067 = acos(r1437066);
        double r1437068 = -r1437067;
        double r1437069 = r1437066 / r1437068;
        return r1437069;
}

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 2019153 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))