////////////////////////////
// XDemo.h Header File
//
class Xclass {
private:
int XLength;

public:
int GetXLength();
double *XVec;
Xclass(double *InputVec, int LengthInput); // Constructor
~Xclass(); // Destructor;
double *AutoCor();
};
double *XDemo(double *InputVec, int LengthInput);