EO

无约束问题最优化方法的核心问题是选择搜索方向。 以正定二次函数为例，来观察两个方向关于矩阵Ａ共轭的几何意义(Unconstrained optimization problems are most core issue is to choose the search direction. In definite quadratic function, for example, to observe both directions on the matrix A conjugate geometric meaning)

Matlab basics very good

里面包含主元分析PCA的Matlab代码，包括提取主元，求方差贡献率，绘制贡献率直方图等(Which contains the principal component analysis PCA of the Matlab code, including the extraction of the main element, seeking variance contribution rate, contribution rate of histogram mapping, etc.)

有兴趣学系matlab的朋友，不妨下载看看。这个是经典的matlab模型的源码，里面包含了很多模型的源程序(Faculty are interested in matlab friends, may wish to download to see. This is a classic model matlab source, which contains a lot of model source code)

一个实现turbo码的编码和解码，是一个递归卷积码的编解码的程序源码。(A turbo code to achieve the encoding and decoding, is a recursive convolutional encoding and decoding of the program source code.)

《MATLAB智能算法30个案例》分析源代码(" MATLAB intelligent algorithm 30 case" analyze the source code)

基于无刷直流电机的的矢量控制程序，可以在simulink中直接建模，系统为开环系统。(Brushless DC motor based on vector control program, you can direct modeling in simulink, the system is open-loop system.)

多元统计中的对应分析程序，提取因子之后，可对提取的公共因子按最大方差旋转。程序经多组经典数据验证通过。(The corresponding multivariate statistical analysis program, after the extraction of factors, can extract the common factors by maximum variance rotation. Program through multiple data validation through classical.)

说明：  这是用matlab编写的又来绘制KOCH曲线的源代码(This is again written in matlab source code for drawing curves KOCH)

ofdm channel using and measure of PSNR