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求解平面势流下的圆柱绕流问题，基于MATLAB的有限元法编程。(cylinder，finite elements method)

说明：  此程序为语音信号的过零率检测，白噪声过零率远远高于语音信号，故可通过对过零率的检测判断出是不是语音信号。(This procedure for the zero rate of speech signal detection, white noise zero crossing rate is much higher than the speech signal, it can zero rate by detection of voice signal is not judged.)

GetstartMATLAB

在matlab中，将数据以矩阵形式存储进dat文件中(In matlab, the data is stored in the form of a matrix dat file)

Face Recognition Using PCA Classifier by extracting DTCWT features

说明：  本程序使用matlab对ami码进行编程，希望大家通过它能对编码有所了解(the procedures for the use of Matlab programming code ami, we hope it right through coding understand)

感知器感知器算法训练二元线性分类器。结构体数据使用感知器学习规则 找到给定的二分类标签数据超平面。 (PERCEPTRON Perceptron algorithm to train binary linear classifier. Synopsis: model = perceptron(data) model = perceptron(data,options) model = perceptron(data,options,init_model) Description: model = perceptron(data) uses the Perceptron learning rule to find separating hyperplane from given binary labeled data. model = perceptron(data,options) specifies stopping condition of the algorithm in structure options: .tmax [1x1]... maximal number of iterations. If tmax==-1 then it only returns index (model.last_update) of data vector which should be used by the algorithm for updating the linear rule in the next iteration. model = perceptron(data,options,init_model) specifies initial model which must contain: .W [dim x 1] ... normal vector. .b [1x1] ... bias of hyperplane. .t [1x1] (optional) ... iteration number. Input: data [struct] Labeled (binary) training data. .X [dim x num)

matlab code for happy birthday wish.

LBM方法模拟方腔流动，处理边界问题为反弹格式，试用简单，但还有改善的地方。(LBM method to simulate the cavity flows, treatment of boundary problem for rebound format, try a simple, but also improve the place.)

利用最小二乘法实现pi模型的离线辨识和在线辨识(Parameter identification of hysteresis PI model)