摘要
两个整点间存在T路的充分必要条件被确定 ,满足一定条件的T路长度的计数公式被给出 ,特别 ,给出了通过一条直线y =l或不通过该直线的T路的条数 ,以及从一个固定始点出发所引的长度为n的T路的条数 .
It is determined in this paper that the necessary and sufficient condition existing T-routes between two integral points,and several counting formulas are given,which are related to length of T-routes satisfying certain conditions.In particular,we give the numbers of T-routes passing or not the straight line y=l,and the number of T-routes having a fixed point as the starting point with length n.
基金
SupportedbyHunanProvincialDepartmentofEducation( 0 2C5 12 )
