mathematica

Calcules for integral, in pdf

本课件系统地讲述了几何光学的原理，对入门学者来说很有帮助(The principles of the courseware systematically describes the geometrical optics, for entry scholars helpful)

This code calculates the 3D medial axis skeleton of an arbitrary 3d binary volume

VB编写的计算器-VB prepared by the Calculator

VB6.0+ACCE-VB6.0+ ACCE

digital communication

一个简单的SMS收发程序，可以实现短信收发与拨打电话-A simple SMS sending and receiving process, you can send and receive text messages and phone calls to achieve

VC++.NET 时尚游戏开发编程40例，各种智力游戏

金庸小说人物卜，游戏编程源码，很好的参考资料，有需要的就下载吧。(Characters in the novels of Jin Yong Bu, game programming source code, a good reference, there is a need to download it.)

投票管理系统,投票类型丰富，能够创建多选或单选的普通投票、图片投票、调查问卷、多类型混合等多种类型的投票； -Management system to vote, vote-rich type, to create more than the general election ballot or the radio, pictures, voting, surveys, multi-type mixed, such as various types of voting