矩阵运算

使用两个向量的叉积来判断两条线段是否相交-The use of the cross product of two vectors to determine whether two line segments intersect

access转换为execl,方便打印报表-access into execl facilitate print statements, etc.

ODBC API访问数据库的文章却少之又少。虽然用ODBC访问数据库比较麻烦，但却很灵活，效率高，-ODBC API to access the database of the article are few and far between. Although access to the database using ODBC is too much trouble, but it is very flexible, high efficiency,

一个实用的厂矿管理系统。-a practical mining management system.

用迪杰斯特拉算法求解最短路径问题，这个算法是我自己编出来的 ，感觉有很多冗余之处，请大家一起改正-Using Dijkstra shortest path algorithm, this algorithm is out of my own, I feel a lot of redundancy, please everyone together to correct

数据结构 习题-data structure Exercises

数据库远代码，比较好的java实现的，比较清晰好用-The database is far code, java to achieve a better, more clear and easy to use

pb类电子时钟, 数字显示屏的实现源码，非常好-pb electronic clock, digital display achieving source, a very good

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分支限界tsp算法中求下界函数的值。有中文注释。-Tsp branch and bound algorithm for the lower bound of the value function. Chinese Notes.