double returnLyap(Matrix& po, double T);
double returnLyap(char *dir, int n);
void saveLyap(char *dir, int m, int n);
double returnDist(char *dir1, int indx1, char *dir2, int indx2);
double returnMinDist(Matrix& po1, Matrix& po2);
double returnMinDist(Matrix& po, Vector& v);
double returnMin(Vector& v, int& indx, double& shft);
void findMinDist(Matrix& po, Vector& v, 
		     int& iindx, double& sshft, double& mindist);