说明：  矩阵类：可运行矩阵间的加、减、乘以及矩阵与数的点乘；可计算矩阵的转置、秩、行列式、逆；其中求解矩阵逆用到了经典的高斯算法；求解行列式以及秩运用的是消元法。
(Matrix categories: to run between matrix add, subtract, multiply, and matrix and the number of points x computable matrix transpose, rank, determinant, inverse which matrix inverse used for solving the classical Gaussian algorithm solving the determinant as well as the rank is the use of elimination method.)