四阶Runge-Kutta法解常微分方程组

a simple method of pca. how to find mean and to normalize data

用3中误差扩散滤波器实现误差扩散，分别是floyd stein, sierra, Stenenson滤波器(Error diffusion filter with a 3 to achieve error diffusion, respectively, floyd stein, sierra, Stenenson filter)

说明：  模式识别，算法用于模式分类，采用了matlab自带的接口函数(pattern recognition algorithm for pattern classification, using the Matlab's own interface function)

《MATLAB图像处理实例详解》源代码 第 12章 ( MATLAB image processing example explanation Source Code Chapter)

AFSA_fxy是用人工鱼群算法（artificial fish swarm algorithm）解决二元函数寻优问题。文件打开后运行AFSA_fxy.m文件即可得到结果，代码中有详细注释，方便修改。运行示例已经保存为图片附在压缩包中。(AFSA_fxy is (artificial fish swarm algorithm) to solve the optimization problem with a binary function AFSA. Run AFSA_fxy.m file to get the file to open the result, the code has detailed notes, easy to modify. Run the sample has been saved as a picture attached to the compressed package.)

关于mie散射的程序，可以求出mie散射中的各项参数。(Mie scattering program, you can find the parameters of the Mie scattering.)

无线传感器网络SEP定位算法的matlab源码，比较不错啊(Wireless sensor networks SEP localization algorithm of matlab source, is good)

LDPC编译码仿真。部分迭代编码，不限定H矩阵类型，SPA算法译码。(LDPC codec algorithm in AWGN channel。)

VSharp学习软件源代码WindowsApplication_Example示例程序(VSharp learning software WindowsApplication_Example sample application source code)

说明：  Thue-Morse building algorithm