cluster-analysis

专家pid控制仿真程序实例，，matlab，三阶传递函数的阶跃响应(Expert pid control simulation program example,, matlab, third-order transfer function step response)

image enhancement matlab code ,can improve the picture quality ,especially for the image with low quality .(image enhancement Matlab code, can improve the picture quality. especially for the image with low quality.)

此程序为MATLAB环境下编写的用于对图像的平均梯度进行计算 从而对图像的清晰度 图像的质量进行评价的代码。(This program is written in MATLAB environment is used to calculate the average gradient image sharpness of the image and thus to evaluate the image quality of the code.)

采用3D Bresenham算法在两点间划一直线 ％ This program is ported to MATLAB from: ％ B.Pendleton. line3d - 3D Bresenham s (a 3D line drawing algorithm) ％ ftp://ftp.isc.org/pub/usenet/comp.sources.unix/volume26/line3d, 1992 ％ ％ Which is referenced by: ％ Fischer, J., A. del Rio (2004). A Fast Method for Applying Rigid ％ Transformations to Volume Data, WSCG2004 Conference. ％ http://wscg.zcu.cz/wscg2004/Papers_2004_Short/M19.pdf (3D Bresenham algorithm used in a straight line between two points This program is ported to MATLAB from: B. Pendleton. Line3d- 3D Bresenham s (a 3D line drawing algorithm) ftp://ftp.isc.org/pub/usenet/comp.sources.unix/volume26/line3d, 1992 Which is referenced by: Fischer, J., A. del Rio (2004). A Fast Method for Applying Rigid Transformations to Volume Data, WSCG2004 Conference. http :// wscg.zcu.cz/wscg2004/Papers_2004_Short/M19.pdf)

C++ red and black tree implementation

数值积分演示 可以说明数值积分 在课上使用(it is a matlab program about Numerical integration，it would be used in class to show Numerical integration to the classmate)

外国人写的黑白棋游戏，对学习MATLAB有很大帮助，请用MATLAB5以上版本运行( othello.m A simple othello program Author: Subroto Gunawan Date: August 8, 2000)

分类算法，参数分别为G（相似度矩阵），r（邻居门限），lambda（类门限），返回值A，一个cell数组，每个元素是一个向量，包含了一个类的所有元素。(Classification algorithm parameters are G (similarity matrix), r (neighbor threshold), lambda (class threshold), the return value A, a cell array, each element is a vector containing all the elements of a class.)

说明：  文件里边是针对两个非线性、变系数、非齐次偏微分方程的求救方法(The content of the document is for two nonlinear, variable coefficient, inhomogeneous partial differential equation solution method)

simulink model of an innovative sinusoidal pulse width modulation technique. try to verify the performance. it is for study purpose..