Average Error: 0.3 → 0.3
Time: 3.2m
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 r35196487 = a;
        double r35196488 = acos(r35196487);
        double r35196489 = -r35196488;
        double r35196490 = r35196487 / r35196489;
        return r35196490;
}
↓
double f(double a) {
        double r35196491 = a;
        double r35196492 = acos(r35196491);
        double r35196493 = -r35196492;
        double r35196494 = r35196491 / r35196493;
        return r35196494;
}

Error

Bits error versus a

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Your Program's Arguments

Results

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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 2019120 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))