firstderivative

说明：  旋转图像，平滑会出现的锯齿，例子和源代码(Rotate the image, smoothing jagged occur, examples and source code)

并行处理J PEG算法的优化(Image compression can be used for graduate thesis work of design)

说明：  光子晶体带隙计算的例子，以前在3.5版本模型库里面有，但是4.2里面么了，希望对大家有所帮助。(Photonic band gap calculation example, the previous 3.5 version of the model library in there, but what a 4.2 inside, we want to help.)

对Lorenze系统进行延迟反馈控制，系统采用Simulik建模仿真(Delay feedback Control for Lorenze Chaos system)

K-Means in Matlab 2011

Demo macro to extract frames and get frame means from an avi movie and save individual frames to separate image files. Also computes the mean gray value of the color channels.

LINEINTRGAL Line Integral in a 2D Vector Field. LINEINTRGAL(X,Y,U,V,C) computes the line integral along the lines given in cell array C. X and Y define the coordinates of a rectangular grid over which U and V are defined. X and Y must be monotonic and 2D plaid as ％ produced by MESHGRID. X, Y, U, and V must all be the same size.(LINEINTRGAL Line Integral in a 2D Vector-Fi eld. LINEINTRGAL (X, Y, U, V, C) computes the line integral along the lines gi ven in cell array C. X and Y coordinate define the s of a rectangular grid over which U and V are defi ned. X and Y must be monotonic and 2D plaid% as pro duced by MESHGRID. X, Y, U, and V must all be the same size.)

在matlab开发平台上，关于gui界面设计的参考资料，包含很多应用案例。(On matlab development platform, about gui interface design reference, contains many application cases.)

转子系统固有频率分析，不平衡激振力下的转子系统固有特性分析中质量矩阵编程(Natural frequency analysis of rotor system, mass matrix programming in analysis of inherent characteristics of rotor system under unbalanced excitation force)

说明：  MATLAB 编写的用matlab 来实现的pde图像增强方法，如果不对的地方，请各位指出。(This is an enhance image example to use pde ways,if there is some problems ,please tell me )