PQyuanchengxu

类WinXP计算器，不习惯或对Win7计算器功能不满足的用户和适用。(It s a calculate similar to the WinXP system, it s very useful to the user of dissatisfact to the Win7 system.)

三维极坐标绘图函数，将三维直角坐标系下的绘图转变为三维极坐标绘图(Three-dimensional polar coordinate drawing function, the three-dimensional Cartesian coordinates of the system into a three-dimensional polar coordinates)

线性表的创建 删除 查找 插入 输出等功能(linearlist create delete find insert print)

说明：  A hedge ea, return curve for 1min is perfect.

经典的俄罗斯方块游戏，华丽的界面，可以直接运行，各种代码注释。供各位学习使用(Classic Russian square game )

VB 编写的一款矢量图制作工具源代码,非常不错的，真的。你用用就知道了(vb bianxiandeyikuansiliangzhizuogongju)

西门子仿真编程软件S7-PLCSIM V5.4，用于S7-300/400系列PLC程序的仿真(S7-PLCSIM V5.4 offers the following new features with this release: DP, Industrial Ethernet and PC Internal connection types supported in addition to MPI Formerly, S7-PLCSIM used a default connection of MPI, address 2. With S7-PLCSIM V5.4, you can browse STEP 7 projects and select a networked node for establishing a simulation connection. S7-PLCSIM simulates the CPU of the selected node, all nodes that belong to that CPU, and the subnet of the selected node. Increased number of blocks supported for simulation S7-PLCSIM supports a set of OBs, SFBs, and SFCs as described in the electronic manual and online help. Of these, some are NOPs that is, they do not perform any operation. With S7-PLCSIM V5.4, the number of blocks that are not NOPs has increased.)

此demo包含vc操作Access数据库的链接、以及增删改查的基本操作，均提供的有接口，方便用户操作，并且提供了一些模糊查询语句供用户参考~~(This demo contains the Access database, the link vc operations, as well as additions or deletions to change the basic operation of search are provided with interfaces, user-friendly operation, and provides a number of fuzzy query for the user' s reference ~ ~)

电力拖动自动控制系统，对大家很有用，希望多下载，呵呵呵 (Automatic control system for electric drive, useful for all of us, wanting to download,呵呵呵)

分治法思想，求最邻近点对，考虑将所给的n个点的集合S分成2个子集S1和S2，每个子集中约有n/2个点，然后在每个子集中递归地求其最接近的点对(Divide and conquer ideas, find the nearest point to consider given the set S of n points into two subsets S1 and S2, each subset of about n/2 points, and then recursively find its focus in each sub-the closest point)