Km is a parameter that is directly related with morphology of the matrice .

参数公里，是与此有直接关系的形态矩阵。

Then these matrice are transformed to arbitrary triangular element by the concept of subparameter.

应用亚参元的概念将这些矩阵推广应用于任意三角形单元。

And a practical method for the splitting such that the iterative matrice is less than one is presented.

提供了一种实用的分裂使的迭代矩阵的谱半径小于一。