求翻译：矩阵分块是高等代数和矩阵论研究的重要内容，是处理阶数较高的矩阵的常用方法和技巧，它往往使得原矩阵的结构更清晰，运算更简便。本文讨论了分块矩阵的有关概念和性质，给出2×2分块矩阵的可逆条件及其运算公式。同时，根据不同分块矩阵的特点，总结出分块矩阵在矩阵求逆、行列式计算等方面的应用，并用一些典型实例加以分析和说明。是什么意思？

Block matrix is ​​the important research of advanced algebra and matrix theory, is commonly used methods and techniques for dealing with higher order matrix, which tends to make the original matrix structure is clearer, easier computing. This article discusses the concept and nature of the block mat

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The matrix piecemeal is the advanced algebra and the theory of matrices research important content, is processes the exponent%2

Matrix block is the important content of study of higher algebra and matrix theory, is a common approach to deal with higher-order matrix and skill, it tends to make the structure more clearly in the original matrix, operation more convenient. This article discusses the concepts and properties of bl