Average Error: 0.2 → 0.2
Time: 15.1s
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 r76074 = a;
        double r76075 = acos(r76074);
        double r76076 = -r76075;
        double r76077 = r76074 / r76076;
        return r76077;
}
↓
double f(double a) {
        double r76078 = a;
        double r76079 = acos(r76078);
        double r76080 = -r76079;
        double r76081 = r76078 / r76080;
        return r76081;
}

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 2019198 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))