Average Error: 0.3 → 0.3
Time: 42.9s
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 r3635948 = a;
        double r3635949 = acos(r3635948);
        double r3635950 = -r3635949;
        double r3635951 = r3635948 / r3635950;
        return r3635951;
}
↓
double f(double a) {
        double r3635952 = a;
        double r3635953 = acos(r3635952);
        double r3635954 = -r3635953;
        double r3635955 = r3635952 / r3635954;
        return r3635955;
}

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 2019168 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))