Average Error: 0.3 → 0.3
Time: 15.0s
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 r4402307 = a;
        double r4402308 = acos(r4402307);
        double r4402309 = -r4402308;
        double r4402310 = r4402307 / r4402309;
        return r4402310;
}
↓
double f(double a) {
        double r4402311 = a;
        double r4402312 = acos(r4402311);
        double r4402313 = -r4402312;
        double r4402314 = r4402311 / r4402313;
        return r4402314;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.3

    \[\frac{a}{-\cos^{-1} a}\]

  2. Final simplification0.3

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2019192 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))