MATLAB

这是一个介绍Matlab使用的课件，其内容简单，适合初学者接触和学习Matlab。(This is an introduction to Matlab uses the courseware, their content is simple, suitable for beginners contacts and learning Matlab.)

code in matlab for penny shaped crack

Matlab programm for gaussian mixture model

ABAQUS vumat subroutine for user defined materials using Hashin 3D Failure criterion model in finite element simulation

说明：  ：针对PID参数复杂烦琐的整定过程这一问题，基于MATLAB／Simulink仿真环境，模拟工程稳 定边界法的PID参数整定策略和步骤，提出了一种简单有效的PID参数整定方法．与通常的整定方法 比较，其优点是非常直观、完全可视化操作、省去了编程的工作量．仿真结果表明该方法具有良好的收 敛性，使得控制系统动态性能得到有效改善，并且很大程度上减少了工作量．(Abstract：The process of PID parameters turning is complicated and time—consuming to engi— neering technician．To solve this problem．simulating the Z～ N method of engineering turn— ing，based on the MATLAB／simulink，a simple and eficient method for PID parameters turning is presented in this paper．Compares with the general methods，it has many advanta— ges，such as simplicity，visual manipulation，leaving out the workload of program and SO on． The simulation results show the effectiveness of this method and be fit for application in the engineering．)

激光雷达资料，包含星载激光多普勒测风雷达发展研究、星载激光雷达的发展与应用、激光雷达原理(Lidar data, including the development of laser Doppler wind radar spaceborne laser Doppler wind radar research,principle of lidar )

An program for transmission line is given in this file.For Short the length is 80 km,for medium 80 to 250 km and for long transmission length is given by 250 km above.

学习matlab的解微分方程的小程序，已经测试无误(The solution of differential equations matlab learning applets, have been tested correctly)

最小二乘支持向量机的训练代码，该代码最多能够训练类别数为8类的数据。(The training code of LSSVM. And it can train no more than eight class datas.)

空间面板，直接和间接效应，LM检验,包括例子，代码等等。(The demo contains files to estimate all spatial econometric models based on an exact calculation of the Jacobian term in the log_likelihood function. Supporting files to print the results, to calculate (robust) LM-test statistics and to calculate direct and indirect effects are also included.)