A-Guide-to-MATLAB-for-Beginners-and-Experienced-U

一个50行的Matlab有限元程序（二维非线性问题），执行fem2d_nonlinear.m即可。(A 50-line Matlab finite element program (two-dimensional nonlinear problems), the Executive fem2d_nonlinear.m can.)

说明：  本程序包括：论文SVM 用于基于块划分特征提取的图像分类，和相应的matlab实现其中图像划分以及特征提取、聚类均利用matlab6.5完成。 (The procedures include: paper by SVM for feature extraction based on block classification, and the corresponding realization of one image into matlab, and feature extraction, clustering were done using matlab6.5.)

计算PSNR。可直接调用，两个输入参数im1,im2为两个图象序列，返回值为PSNR的值。(Calculation of PSNR. Can be called directly, two input parameters im1, im2 two image sequences, the return value is the PSNR.)

现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3) 1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。 (an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)

采用matlab的GUI写的晚会等可用的按座位抽奖的程序，为西安电子科技大学2013届研究生迎新晚会上使用的抽奖程序( Seats by party and other lottery programs available)

飞行力学的相关知识，如坐标系之间的转换，不同高度下压力、密度等的计算，以及一些插值算法的应用(Calculation of the flight mechanics knowledge, such as the conversion between the coordinate system at various altitudes pressure, density, etc., and the application of some interpolation algorithm)

基于数字地球的车载卫星导航定位的设计与实现(Digital Earth s satellite navigation and positioning the vehicle design and implementation)

基于LBG算法的矢量量化码书设计的Matlab程序(LBG algorithm based on vector quantization codebook design procedure of Matlab)

系统辨识中的最小二乘算法程序，希望对大家有用(system identification of least-squares algorithm procedures in the hope that it may be useful to)

小世界优化算法MATLAB源程序，因为保存的问题需要修改一下开头和结尾(Small-world optimization algorithm MATLAB source code, because the preservation of the problem need to change it at the beginning and end of)