Average Error: 0.2 → 0.2
Time: 17.2s
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 r3747202 = a;
        double r3747203 = acos(r3747202);
        double r3747204 = -r3747203;
        double r3747205 = r3747202 / r3747204;
        return r3747205;
}
↓
double f(double a) {
        double r3747206 = a;
        double r3747207 = acos(r3747206);
        double r3747208 = -r3747207;
        double r3747209 = r3747206 / r3747208;
        return r3747209;
}

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 2019134 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))