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本程序提供主成分分析算法，该算法有四个小程序组成，简单，实用。(This program provides the main element analysis of the algorithm, the algorithms are four small and simple, practical. )

similarity measurement ,to get the eigenvalue

Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof - the number of system dofs after constraints applied sid - ID matrix of system dof formatted as nnode*ndof discons - matrix record the node of displacement constrain ndof - number of dofs per node nnode - number of nodes in system(Purpose: build the ID array of system dofs to apply displacement constraints Synopsis: [csdof,sid]=fe_sdofID(discons,ndof,nnode) Variable Description: csdof- the number of system dofs after constraints applied sid- ID matrix of system dof formatted as nnode*ndof discons- matrix record the node of displacement constrain ndof- number of dofs per node nnode- number of nodes in system)

Space Vector Modulation for Three leg Two level inverter

MATLAB实现大气湍流随机相位屏，以傅里叶变换为基础，增加了低频次谐波补偿 使相位屏仿真更加准确(atmosphere random phase is realized with MATLAB.)

介绍关于神经网络的好书！对于使用神经网络算法来计算处理工程实例问题提供借鉴指导作用(This is a extrodinary book for users who will solve some engineering projects by ANN methods using the software Matlab )

以12脉波整流电路为研究对象，有效降低网侧电流的谐波畸变，其主要原因在于所采用的移相变压器，能过它可使各6脉波二极管整流器产生的低次谐波相互抵消。利用Matlab—Simulink建立模型对其进行仿真，并对其产生谐波电流进行分析和计算，阐述了其消谐原理。这种整流电路采用两个6脉波二极管整流器进行串联，功率因数较高，提高了直流电压的输出能力，对减少电网中的谐波干扰十分有效，可以有效地消除钢厂电力系统中较高次数的谐波。(Low-order harmonics with 12 pulse rectifier circuit for the study, effectively reducing line current harmonic distortion, mainly due to phase-shifting transformer used, it can make each six-pulse diode rectifier generated offset each other . Using Matlab-Simulink simulation modeling them, and analyze and calculate their produce harmonic currents, described its harmonic elimination principle. This rectifier circuit uses two 6-pulse rectifier diode in series, high power factor, increase the output capacity of the DC voltage to reduce power grid harmonic interference is very effective, steel power system can effectively eliminate high the number of harmonics. )

一种很容易理解的svm matlab工具箱，可用于分类，回归，并附很多示例。(A very easy to understand svm matlab toolbox, can be used for classification, regression, together with many examples.)

simulink实例仿真源码应有尽有，通信方向在学习Simulink的可以参考一下！(The simulation simulink source everything, communication, direction in learning Simulink that can refer to!)

This book gives you this ability to expand your English vocabulary.