But when the condition number of the matrix is very large , the round error will be accumulated to collapse the true solution , that is , the method is unstable 同时，当系数矩阵的非零元结构不规则或带宽较大时，其计算量与存储量十分大。
At the same time , it shows that studying and designing the vertical - cavity surface - emitting lasers optical properties using the fresnel matrix method is a simple and fast way 同时也说明菲涅耳系数矩阵法设计垂直腔面发射激光器是一种快速准确的方法。
A novel reversible coordinate transform method , need not calculating the transform coefficient matrix , based on vector operation is proposed in this paper 摘要提出了一种基于矢量运算的新的坐标变换方法，该方法具有不需要计算转换系数矩阵、可逆的特点。
The example in the end of the article shows that , to the matrices that meet some special conditions , the three methods presented in this article are effective 数值例子表明，对于系数矩阵a , b满足一定条件的sylvester方程，本文所给出的三种迭代方法是有效的。
A method is set forth to calculate the hydrodynamic pressure influence matrix of elastic dam using series development and linear superposition theorem in this paper 利用级数展开和线性叠加原理，本文给出了一种求取弹性坝面动水压力影响系数矩阵的数值算法。
In this paper , based on integrated solution of differential equation , we derived simple and analytical expression of elements of sentivity matrix and formed imaging equations 本文从微分方程的积分解出发，推导了表达式极为简单的三维雅可比系数矩阵，构造了成像方程。
Abstract : a method is set forth to calculate the hydrodynamic pressure influence matrix of elastic dam using series development and linear superposition theorem in this paper 文摘:利用级数展开和线性叠加原理，本文给出了一种求取弹性坝面动水压力影响系数矩阵的数值算法。
The compressed coefficient matrix is stored and other memory saving methods are involved . ssor is employed to improve the coefficient matrix , as a result , fem solver - bicg is speeded 讨论了有限元方程组系数矩阵的压缩存储技术和其它一些内存紧缩方法，节省了大量的内存消耗。
Good simulation results are obtained by the appropriate choose of the state variance , definition of the external disturbance parameter , and adjustment of the coefficients parameter matrix 通过合理选择状态变量及定义外部扰动参数，以及对各系数矩阵参数的调节方法研究，得到了较好的仿真结果。
In chapter 3 , gauss - seidel iterative method is discussed . if the sylvester equation coefficient matrices a , b are non - singular m - matrix , we use a splitting - up method which has a parameter in chapter 4 在第四章，对于系数矩阵a , b是非奇m阵的情况，本文将一种带参数的分裂算法应用于求解sylvester方程。
