Average Error: 0.0 → 0.0
Time: 16.3s
Precision: 64
\[{x}^{4} - {y}^{4}\]
↓
\[{x}^{4} - {y}^{4}\]
{x}^{4} - {y}^{4}
↓
{x}^{4} - {y}^{4}
double f(double x, double y) {
        double r1625885 = x;
        double r1625886 = 4.0;
        double r1625887 = pow(r1625885, r1625886);
        double r1625888 = y;
        double r1625889 = pow(r1625888, r1625886);
        double r1625890 = r1625887 - r1625889;
        return r1625890;
}
↓
double f(double x, double y) {
        double r1625891 = x;
        double r1625892 = 4.0;
        double r1625893 = pow(r1625891, r1625892);
        double r1625894 = y;
        double r1625895 = pow(r1625894, r1625892);
        double r1625896 = r1625893 - r1625895;
        return r1625896;
}

Error

Bits error versus x

Bits error versus y

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Results

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Derivation

  1. Initial program 0.0

    \[{x}^{4} - {y}^{4}\]

  2. Final simplification0.0

    \[\leadsto {x}^{4} - {y}^{4}\]

Reproduce

herbie shell --seed 2019171 
(FPCore (x y)
  :name "Radioactive exchange between two surfaces"
  (- (pow x 4.0) (pow y 4.0)))