FLOW-IN-THE-CHANNEL

已知一个LTI系统的差分方程为： y[n]-1.143*y[n-1]+0.4128*y[n-2]=0.0675*x[n]+0.1349*x[n-1]+0.0675*x[n-2] 初始条件y(-1)=1,y(-2)=2，输入x(n)=u(n)，计算系统的零输入响应 (known LTI system of a differential equation : y [n]-1.143* y [n-1] 0.4128* y [n-2] x = 0.0675* 0.1349 [n]* x [n-1] 0.0675* x [n-2] initial conditions y (1) = 1, y (2) = 2, input x (n) = u (n), we calculate the zero input response)

说明：  这是MATLAB编程第二版Stephen J. Chapman 著，英文经典教材的中文版。学习MATLAB的经典教材！绝对经典！ (This is the second edition of MATLAB programming with Stephen J. Chapman, the Chinese version of the English classic textbook. Learning MATLAB classic textbook! Absolute classic!)

LDA的matlab实现，得出alpaha和beta的值(the procedure to implement Latent Dirichlet Allocation ,the end of this procedure is the value of alpha and beta.)

UNIFAC活度系数模型，该模型公式下标极尽复杂，非常容易出错，在这里很大家共享一下。(UNIFAC activity coefficient model, the model complex formula subscript his best, very easy to make mistakes, here are all to share it.)

说明：  偶图最大匹配完全照算法说明利用集合运算实现的matlab代码。这里需要大家讨论的是增广路的选取的算法，希望朋友们多多讨论，争取找一种更好的增广路方法，有想法的一定告诉我，谢谢，jxrhhu@hhu.edu.cn(Bipartite graph maximum matching algorithm description completely according to the use of computing to achieve a collection of matlab code. Here we need to discuss is the way to broaden the selection of the algorithm, a lot of friends who wish to discussions in order to find a better way to broaden the way, there is a certain mind to tell me, thank you, jxrhhu@hhu.edu.cn)

This is a simple calculator calculate addition

Simulated annealing- particle swarm optimization, the program will be simulated annealing algorithm and particle swarm optimization by combining optimization parameters have a good effect

PID控制电机MATLAB源码，可以直接运行。(PID control motor MATLAB source code can run.)

有关于哈达玛矩阵的测量矩阵matlab代码,重构算法为TVAL3算法(About Hadamard matrix of measurement matrix matlab code, algorithms reconstruction algorithm for TVAL3)

这是一个Matlab程序。它教你怎么处理风洞试验数据。对初学者很有帮助。(This is a matlab programme about wind load. It s very important for a new learner . It tells you how to deal with wind load.)