Example11(June 9,2015)

 %--------------sort-------------------------------
 >> A=[ ; ; ]
 A =

 >> B=sort(A,)%A(:,)<=A(:,)
 B =

 %---------------END-----------------------------------
 %--------------reshape-------------------------------
 >> j=:;
 >> NT=;
 >> A=reshape(j,NT,)或者A=reshape(j',NT,3)
 %讲一个行(列)向量转化为一个指定规模的矩阵(NT*)
  A =

 %---------------END-----------------------------------
 %--------------unique---------------------------------
 >> node=[ ; ; ; ];
 >> elem=[  ;  ];
 >> totalEdge=sort([elem(:,[,]);elem(:,[,]);elem(:,[,])],);
 >> totalEdge=sort([elem(:,[,]);elem(:,[,]);elem(:,[,])],)
 totalEdge =

 >> [edge,i2,j]=unique(totalEdge,'rows')
 edge = %去掉totalEdge中重复的边,edge(:,)由小到大向下排

 i2 =

 j =

 %--------------END------------------------------------

June 10,2015