Average Error: 0.3 → 0.3
Time: 2.3m
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 r25785150 = a;
        double r25785151 = acos(r25785150);
        double r25785152 = -r25785151;
        double r25785153 = r25785150 / r25785152;
        return r25785153;
}
↓
double f(double a) {
        double r25785154 = a;
        double r25785155 = acos(r25785154);
        double r25785156 = -r25785155;
        double r25785157 = r25785154 / r25785156;
        return r25785157;
}

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 2019124 +o rules:numerics
(FPCore (a)
  :name "Fuzzer 001"
  (/ a (- (acos a))))