线性代数基本实现，各种基础的线性代数计算接口（加减乘除、求逆、求秩、最大线性无关组）以及矩阵的特征值特征向量的计算（QR方法）。含有设计文档。-The basic realization of linear algebra, and linear algebra calculation based interface (addition and subtraction multiplication and division, inverse, and rank, the largest group of linearly independent) and the eigenvalue matrix eigenvector calculation (QR method).