常用矩阵元 mxn)=(-)y2(√m+1nn+√n+16mm) e )2(√m+16n √n+1nn1) 0 20 0√20√3 2 0√30常用矩阵元                         = = + − + = + + + + + + + . . . . . 0 0 3 0 . 0 2 0 3 . 1 0 2 0 . 0 1 0 0 . 2 ( ) ( 1 1 ) 1 ( ) ( 1 1 ) 1/ 2 1, , 1 1/ 2 1, , 1 1/ 2           x m n i m p n m x n m n m n m n m n m n