trade

做了詞法分析器，不知道怎樣，希望有人給我提提意見(Done a lexical analyzer, I do not know how, I hope someone is going to give me make a suggestion)

Add a button on main window title bar

PMSM的向量控制系统，仿真环境matlab7.55/simulink ，经测试可直接使用。 (PMSM vector control system, simulation environment matlab7.55/simulink, has been tested and can be used directly.)

说明：  matlab 中很实用的源代码2：中值滤波器、用Sobel算子和拉普拉斯对图像锐化，梯度算子检测边缘(Practical source code of matlab)

建立关于分数的类,并进行加减乘除等相关运算的C++代码 (Establishment of the scores of the class, and other related operations of addition, subtraction C++ code)

龙格库塔的matlab和c++的源代码程序，可解四阶常微分方程(Runge-Kutta matlab and c++ source code program, fourth-order ordinary differential equations solvable)

说明：  Viterbi算法源程序,注释简洁,利于使用(Viterbi algorithm source, concise notes, beneficial use)

Web自动文本分类技术研究综述 基于WEB的文本分类技术论文(Web Research on automatic text classification techniques for text classification based on technical papers WEB)

640*480 256 色 .BMP 文件显示程序，可以浏览、同时显示 4 幅图象，也可以 在屏幕上开 一个窗口显示 .BMP 图象，并可以使用上下左右箭头键、PageUp/PageDown、Ctrl+Left、Ctr l+Right键浏览整幅图象，在S3、ATI等VGA卡上 调试通过(640* 480256 color. BMP file display program can browse, also showed four images on the screen can also open a window on the show. BMP images and can be used above and below the arrow keys, and Page/Prompt, Ctrl Left, Right keys Ctr l View the entire images in S3, ATI VGA cards such as debugging through)

说明：  matlab中很实用的源代码1，例图图形转换、非线性变换等等(Practical source code of MATLAB)