LSSVMlabv1_8_R2009b_R2011a

this is a algorithm Fast PCA, it is very suitable for beginer who want to understand PCA, it is demo step by step

说明：  语音处理中谱相减MATLAB程序，可以作为函数或单独的程序使用(voice processing spectral subtraction MATLAB procedures, or can function as a separate procedure using)

《MATLAB通信仿真及应用实例详解》邓华，所有章节实例的matlab代码和simulink model。( MATLAB simulation and communication application example explanation Deng Hua, all chapters instances matlab code and simulink model.)

本软件可以实现闪络电压在不同环境条件下的分析，并绘制相应的闪络电压图，对实际结果具有指导意义。(The software can analyze the flashover voltage under different environmental conditions, and draw the corresponding flashover voltage graph has a guiding significance for the actual results.)

模糊pid控制及其matlab仿真,书中的例子(Matlab fuzzy pid control and its simulation, the book)

this matlab code is of interpolation of some given points using newton s divided difference method.

基于非线性模型的多公共点二维坐标转换，在测绘工程上适用性很强(Based on the nonlinear model of the public more two-dimensional coordinate transformation, on the surveying and mapping engineering applicability is very strong)

说明：  在matlab2019B中，已经将princomp函数改为了pca函数，功能相同，函数名改变，所以如果要使用，记得将老版本的代码中的princomp改为pca。(In MATLAB 2019b, the principal function has been changed to PCA function. The functions are the same, and the function name changes. So if you want to use it, remember to change the principal function in the old version of the code to PCA.)

foeward featurrselection

本程序实现了对数极坐标的基本变换，可以在图像处理、稳像等领域进行应用(logpolar algorithm)