chap9

菲涅耳衍射的程序，对于研究物理光学或者应用光学的科技工作者应该有所帮助(Fresnel Diffraction procedures for studying physics of optical or optical technology should help workers)

说明：  Matlab编程指南，是本人在教学过程中，通过大量的实践，自编的一本讲义，内容通俗易懂，每部分后面添加了很多习题，能够激发学生的兴趣。(Matlab Programming Guide is I in the teaching process, through a lot of practice, the self-a lecture, the contents of user-friendly, each part of the back to add a lot of exercises that can stimulate students interest.)

用于计算表面粗糙度功率谱密度，及将二维功率谱密度转换为一维功率谱密度(It is used to calculate the power spectral density of surface roughness and transform the two-dimensional power spectral density into one dimensional power spectral density.)

C语言实现弗洛伊德路径搜索，同时为了提供接口，使用命令行方式给出原始矩阵地址，并且也已txt文本形式将结果保存。测试效果：一个需要在MATLAB中运行8秒的矩阵，在使用该程序时，总共只用了5秒（MATLAB初始化数据+调用该程序+该程序运行+返回至MATALB所用的时间）。而在MATLAB中使用该程序与调用函数相差不大。(C language Freud path search, and in order to provide an interface, use the command line gives the address of the original matrix, and also save results in text form txt. Test Results: A need to run 8 seconds in the MATLAB matrix, in the use of the program, a total of only 5 seconds (MATLAB initializing the program+ data+ call+ back to the program running time spent MATALB). In MATLAB, use the program with little difference between calling a function.)

厦门大学数值分析课件。基于matlab实现。(Courseware for Numerical Analysis of Xiamen University. Matlab-based implementation.)

采用logistic构造的混沌模型，可以产生混沌序列，简单修改参数后可以产生任意区间的混沌序列程序(using logistic structure of chaotic model can produce chaotic sequence, After the simple parameter changes can have arbitrary interval of chaotic sequence procedures)

The brief idea of the algorithm is that every image s pixel is set to black if its brightness is T percent lower than the average brightness of the surrounding pixels in the window of the specified size

Code matlab pour l extraction de la signature de l iris.Nous avons appliquer la méthode de box cuonting et la méthode de box cuonting différenciel.

基于最小均方误差准则的LMS算法对淹没在噪声中的信号进行的有效的提取.(based on the minimum mean square error criteria LMS algorithm drowned in the noise signal the effective extraction.)

now some matlab code for fem is here.pls download it