Average Error: 0.3 → 0.3
Time: 11.6s
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 r93210 = a;
        double r93211 = acos(r93210);
        double r93212 = -r93211;
        double r93213 = r93210 / r93212;
        return r93213;
}
↓
double f(double a) {
        double r93214 = a;
        double r93215 = acos(r93214);
        double r93216 = -r93215;
        double r93217 = r93214 / r93216;
        return r93217;
}

Error

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.3

    \[\frac{a}{-\cos^{-1} a}\]

  2. Final simplification0.3

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2019195 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))