说明：  关于矩阵运算的各种数值算法，包括实（复）矩阵求逆，对称正定矩阵与托伯利兹矩阵的求逆，线性方程组的常用解法，矩阵的各种分解方法，特征向量与特征值的求解等等。
(Matrix operations on a variety of numerical algorithms, including the real (complex) matrix inversion,托伯利兹symmetric positive definite matrix and matrix inversion, linear equations of the commonly used method, the various matrix decomposition methods, eigenvector and eigenvalue solving and so on.)