4、学员管理系统_面向对象

电池荷电状态检测算法的matlab仿真。(Matlab simulation of battery charging state detection algorithm.)

说明：  采用主成分分析法判断了北京2000-2010年的经济活力。采用遗传算法优化的神经元网络模型评估10个城市的经济活力，马尔可夫灰度预测预测未来5年的发展状况。(The economic vitality of Beijing from 2000 to 2010 was judged by principal component analysis. The neural network model optimized by genetic algorithm is used to evaluate the economic vitality of 10 cities, and Markov grey prediction is used to predict the development of the next 5 years.)

说明：  cplex的实例调用使用例子，可以作参考学习(The example of CPLEX can be used for reference)

fontrouter code, a small hacky program to change the font in nokia symbian devices

说明：  时频变换 能够对一维信号进行分析 变换到频率域(time-frequency transform)

本程序是基于灰色预测理论的灰色预测的算法实现(This procedure is based on the gray gray prediction theory prediction algorithm)

几个小游戏的源码，用C/C++写的。 直接运行exe文件可看，实现见CPP文件。-the source code in C/C writes. Direct exe files can be run, realizing see CPP document.

1、客户数据从Excel或Access中导入 2、数据量比较大，约200多万条记录 3、实现分地区查询 4、实现其他条件查询 （关键字） 5、实现分地区查询的用户权限限制，即特定用户只能查找特定地区的客户信息（显示）(1, the customer data from Excel or Access to import 2, larger than the data, about 10,000 more than 200 records of 3, to achieve sub-region query 4, the realization of other conditions query (keyword) 5, to achieve sub-region query user rights restrictions that particular user can only search a specific area of customer information (show))

说明：  计算非连通多边形的面积和面积，输出其面积和形心坐标(Calculating the area and centroid of unconnected polygon)

说明：  IT WORKS WELL UNDER ALL ENVIROMENTS