这是一本经典的工程文档书写教程，提出了金字塔原理，对于书写文档的工程师有极大的意义！-This is a classic document of the works written tutorials proposed pyramid principle, to write documents for the Engineer has a great significance!

用带线性松驰的分支定界算法求解混合整数线性规划问题的软件系统源代码-MINTO is a software system that solves mixed-integer linear programs by a branch-and-bound algorithm with linear programming relaxations.