... matrix difference equation 矩阵差分方程 Matrix-equation Method 矩阵方程法 vector matrix differential equation 矢量矩阵微分方程 ...
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The stiffness matrix corrected by the method not only satisfies the characteristic equation, but also is the unique symmetric positive semidefinite matrix.
用这个方法修正的刚度矩阵不仅满足特征方程，而且是唯一的对称半正定矩阵。
The main method is using the properties of the solutions of characteristic matrix equation.
主要的方法是利用矩阵差分方程的特征矩阵方程解的性质。
By elementary rank transformations of matrix, a method has been obtained to solve linear diophantine equation with some variables. The method overcomes the deficiency of traditional method.
利用矩阵的初等列变换，给出了求解多元线性不定方程的一种方法，该方法改进了传统方法计算量大、步骤多的缺点。
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