Average Error: 0.2 → 0.2
Time: 15.5s
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 r1982509 = a;
        double r1982510 = acos(r1982509);
        double r1982511 = -r1982510;
        double r1982512 = r1982509 / r1982511;
        return r1982512;
}
↓
double f(double a) {
        double r1982513 = a;
        double r1982514 = acos(r1982513);
        double r1982515 = -r1982514;
        double r1982516 = r1982513 / r1982515;
        return r1982516;
}

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 2019152 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))