Average Error: 0.2 → 0.2
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 r3921431 = a;
        double r3921432 = acos(r3921431);
        double r3921433 = -r3921432;
        double r3921434 = r3921431 / r3921433;
        return r3921434;
}
↓
double f(double a) {
        double r3921435 = a;
        double r3921436 = acos(r3921435);
        double r3921437 = -r3921436;
        double r3921438 = r3921435 / r3921437;
        return r3921438;
}

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))))