Average Error: 0.2 → 0.2
Time: 23.1s
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 r106449 = a;
        double r106450 = acos(r106449);
        double r106451 = -r106450;
        double r106452 = r106449 / r106451;
        return r106452;
}
↓
double f(double a) {
        double r106453 = a;
        double r106454 = acos(r106453);
        double r106455 = -r106454;
        double r106456 = r106453 / r106455;
        return r106456;
}

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 2019306 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (- (acos a))))