李老师的《矩阵分析与应用》，大作业，不要照搬以免被判挂科。保存此案例以便测试程序、科研创新调用。 完成课堂上讲的关于矩阵分解的LU分解、QR分解（Gram-Schmidt）、Orthogonal Reduction (Householder变换 reduction 和Givens变换 reduction)和 URV程序实现。在此基础上 ...

Breakfast specials that include eggs, meat, potatoes, and toast can still be found for under $12, a price point that feels increasingly rare. Lunch specials offer similar value, with sandwiches and a ...