直角坐标系转换为极坐标系，极坐标系转换为直角坐标系

在局域网内，能通过IP查看计算机的机器名和所在的工作组，可以向查看的计算机放上消息-in LAN, IP View computer through the machine name and location of the working group to check the news via computer

这是一个关于一张年历表的课程设计说明，具体功能自己看去吧，谢谢。-This is a list of courses on the design of a calendar note to look up specific functions go, thank you.

VC 从视频中选择一帧源码-video VC choose from one source

好东东，电驴源码。。vc的。。可惜水平太低还看不懂本人-Good Dongdong, eDonkey source. . vc programming. .

读取DWG、DXF文件,并把DWG、DXF图显示到界面。-Read DWG, DXF files, and to DWG, DXF diagram shows the interface.

基于oem的数据查询系统 对图结构的半结构化数据进行并,差,选择,投影,粘贴及切削的操作-professionals and consumers can Based on the data query system to map the structure of semi-structured data and, worse, selection, projection, cutting and pasting operation

TP7.0常用内置子程序-TP7.0 commonly used built-Subroutine

对给定的大规模汉语文本库，实现全文检索系统。可接受任意查询串，给出所有相关文本集合（显示标题或相关行内容等）。（交源程序、报告。准备演示）

CRC 算法的实现,在通讯使用它可提高通讯的可靠性.-CRC algorithm implementation, the communication can use it to improve communications reliability.

集合运算 求两个集合的交并差、排序、删除相同字符等-Set Operations for the two sets of cross-and worse, sort, delete the same characters, etc.