矩阵是高等代数学中的常见工具，也常见于统计分析等应用数学学科中。[2]　在物理学中，矩阵于电路学、力学、光学和量子物理中都有应用；计算机科学中，三维动画制作也需要用到矩阵。(Matrix is a common tool in higher algebra, and it is also common in Applied Mathematics, such as statistical analysis. [2] is applied in physics, including matrix in circuit, mechanics, optics and quantum physics. In computer science, three-dimensional animation is also required to use matrix. The operation of matrix is an important problem in the field of numerical analysis. The decomposition of a matrix into a combination of simple matrices can simplify the operation of a matrix in both theoretical and practical applications. For some widely used and special forms of matrix, such as sparse matrix and quasi diagonal matrix, there are specific fast arithmetic algorithms. For the development and application of matrix related theory)