无约束优化问题

curve+qt4.8.5，实现实时曲线鼠标坐标显示(current curve display)

车位数由用户输入，车能够进入车场，车场满时车再进来就要进入便道，然后车离开车场时需要根据车在车场停留的时间收费，收费标准是由用户输入的，如果是车场满时出车后，便道上的车就可以进入车场。需要时要显示车场的所有车的信息状况，包括车的到来时间，进入车场的时间，所在车位置或便道位置。(Parking spaces from user input, vehicles can enter the yard, full yard car will be re-entered into the sidewalk, and then leave the car when the car needs to stay under the car in the garage to collect the tolls, charges are entered by the user, in the case of car full turnout, the pavement on the car will be able to enter the yard. Necessary to show all the car parking lots of information, including the arrival of vehicles into the yard of the time, where the location of vehicle location or shortcut.)

渐开线齿轮的齿廓三维建模，渐开线齿轮的齿廓三维建模(Involute tooth profile of the line gear three-dimensional modeling, three-dimensional modeling of involute tooth profile of the line gear)

将IQ数据转换成FFT频谱，点数代表了频率值。(convert the IQ to spectrum by fft.)

说明：  matlab读取nc格式的插件，直接放入matlab的toolbox文件夹下，保存路径可调用函数(Matlab reads the plug-in in NC format and directly puts it into the toolbox folder of MATLAB. The saved path can call the function)

这是纳米金颗粒的散射实例，在comsol环境下的仿真(nano-gold,comsol,mie scattering)

说明：  一个简单的记事本 软件，有待日后完善， 呵呵 (A simple Notepad Software, to be future perfect Ha ha)

好用电子档案管理系统是一款适用于多岗位的电子档案管理软件，好用电子档案管理系统操作简单，软件体积小，功能强大，能够帮助用户轻松管理电子文档，同时好用电子档案管理系统还有着很多特色的功能，是档案管理的有利助手。(Effective use of electronic archives management system is an electronic archives management software suitable for multiple posts. Effective use of electronic archives management system is simple to operate, small software volume, powerful, can help users easily manage electronic documents, while Effective use of electronic archives management system also has many unique functions, is archives management. A helpful assistant.)

通过本程序，我们可以访问局域网内的其他计算机的文件资源。通过学习，应学会如何使用CSocket类来对制定端口进行扫描。-Through this process, we can access other computers on the LAN of file resources. Through the study, should learn how to use the CSocket class to the development of port scan.

说明：  这是孙鑫Visual C++视频的自学笔记，写的很详细，对学习C++编程的初级学者有很大的帮助。(This is Sun Xin Visual c++ video self-taught notes, write very detailed, for learning c++ programming junior scholars have a lot of help.)