math

给出了线性方程组的CG法、Gauss_Seidel、SOR、Jacobi、fem求解，(Linear equations given the CG method, Gauss_Seidel, SOR, Jacobi, fem solution)

用NRTL模型，求解萘在一种离子液体中的活度系数。 求解非线性方程、非线性拟合都可以实现。 稍微对比了一下，发现还是拟合的结果好些。 Matlab源程序及结果在附件里(with NRTL model for naphthalene in an ionic liquid in the activity coefficient. Solve nonlinear equations, nonlinear fitting can be achieved. Contrast slightly for a moment and found that the fitting or better results. Matlab source and the results of the annex)

电压暂降线路故障仿真，其中分析是用小波分析的。(Fault simulation of voltage sags)

提取图片中数字的MATLAB程序，先将读入图片二值化，然后提取数字。(abstract the numbers in the picture by MATLAB。)

Code to estimate dynamic models

基于MATLAB的分形阵列程序。运用的不同实现方法可以帮助初学者熟悉分形阵列的matlab实现！(MATLAB-based fractal array program. Use of different methods that can help beginners familiar fractal array matlab to achieve!)

2013年秋季 北京航空航天大学惯性导航第一次大作业，指北方位平台惯导系统解算(homework of inertial navigation of beihang university )

移动机器人同时定位与地图创建最前沿技术，来自school summer 的培训材料，一共有三个代码包，包括EKF，PF等代码，这是第一部分(Mobile Robot Localization and Mapping at the same time to create the most cutting-edge technology, from the school summer training materials, a total of three code package, including the EKF, PF and other code, this is the first part of)

lqr倒立摆控制仿真。对于x=Ax+Bu y=Cx+du标准方程，文件qiuk中用lqr函数求解控制数组K，将K值带入fangzhen文件中（文件中已代入），得到倒立摆稳定曲线(lqr inverted pendulum simulation. For x = Ax+ Bu y = Cx+ du standard equation, file qiuk control array using lqr Solving K, the K value into fangzhen file (the file has been substituted), are stable curve inverted pendulum)

以227家公司的数据为基础进行kmeans clustering分组，用以预测50家未知公司的效益(Use 227 the companies data as the basis for kmeans clustering to predict the effectiveness of the 50 unknown companies)