在对多端口网络参数的等效变换中，得到了几个有趣的分块矩阵求逆公式。
Four interesting formulas for the block matrix inversion are derived from equivalent transformations of multi-port network parameters in this paper.
利用结式矩阵求逆矩阵的多项式快速算法，给出了具有结式矩阵块的分块矩阵逆矩阵的一种快速算法。
A fast algorithm for calculating the inverse and group inverse and MoorePenrose inverse of a resultant matrix is presented by using the fast algorithm for finding polynomials.
利用结式矩阵求逆矩阵的多项式快速算法，给出了具有结式矩阵块的分块矩阵逆矩阵的一种快速算法。
A fast algorithm for calculating the inverse and group inverse and MoorePenrose inverse of a resultant matrix is presented by using the fast algorithm for finding polynomials.
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