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计算不同曲率半径的透镜焦距，用于光学设计及激光器设计(determine of the focal length of the optical lens, used for optical design or laser design. )

清华大学胡广书教授的《现代数字信号处理教程》的源程序。学信号处理或通信专业的都知道，胡广书教授在业界是赫赫有名的，读他的书，再读这些程序，你能深刻理解现代信号处理的精华，并会应用。(Tsinghua University Professor Hu Guangshu the modern digital signal processing tutorial, the source. Learning signal processing or communications professionals are aware, Professor Hu Guangshu is known in the industry, reading his books, read these procedures, you can deeply understand the essence of modern signal processing and application.)

这是一个自适应的遗传算法实例， 是在遗传算法的基础上改进的， 例子是和matlab工具箱与应用书上的相似(This is an example of adaptive genetic algorithm is based on the genetic algorithm improved, for example, is matlab toolbox and application of similar books)

用matlab播放《卡农》的程序，直接在命令窗口输入Canon即可(" Canon" program, directly in the command window enter the Canon can play with matlab)

小世界模型网络构建的MATLAB源码。给出图形和随时演化(small world network by MATLAB，get the prediction of the future)

利用firpmord和firpm函数设计双带通滤波器，其指标为，第一带通指标：f =4kHz,f =5 kHz ,f =3.6 kHz ,f =5.4 kHz 第二带通指标：f =6kHz,f =7 kHz ,f =5.6 kHz ,f =7.4 kHz 通带衰耗A <3dB，阻带衰耗A >40dB，抽样频率f =20kHz。(Double belt pass filter using firpmord and firpm function design, for its indicators, through the first area index: f = 4 kHz, f = 5 kHz, f = 3.6 kHz, f = 5.4 kHz The second bandpass indicators: f = 6 kHz, f = 7 kHz, f = 5.6 kHz, f = 7.4 kHz Pass band attenuation A < 3 db, stop-band attenuation A > 40 db, f = 20 KHZ sampling frequency.)

RLS系统辨识MATLAB程序，程序中有详细的说明。(RLS System Identification)

说明：  Kernel pca基于核方法的特征提取算法(feature selection)

用矩量法计算天线辐射特性的MATLAB演示程序，程序很紧凑，执行效率很高(Moment method antenna radiation characteristics of MATLAB demonstration program, the program is very compact, high efficiency in the implementation)

说明：  使用RELS法辨识电加热炉加热特性,可以较好反应出整个系统的动态特性(use RELS method to identify electric furnace heating characteristics )