draw-pticture-and-GUI

通过总结几种潮流计算的方法，并通过MATLAB进行编程(Summary of several flow calculation method, and through MATLAB programming )

semivariogram structure function ,it is about 2D semivariogram.

利用matlab软件平台生成音乐音符，7个音符，不同的乐器实现(create a music tone)

史上最全的Matlab教程，快速学习MATLAB(Most complete history of Matlab tutorial, learn quickly MATLAB)

在matlab或者PSCAD中对桥差不平衡电流进行仿真计算，得到仿真结果与常规计算结果一致，此方法修改简单快捷。(In matlab or PSCAD to bridge the difference between the current imbalance in the simulation calculation, the simulation results are consistent with conventional calculations, this method is simple and quick modification.)

一种差分进化算法的变体，收敛性能及其优秀，大家可以参考(a variant based on differential evolution algorithm,which has a better convergence performance.)

（1）员工各种信息的输入,包括员工的基本信息、学历信息、婚姻状况信息和职称等； （2）员工各种信息的修改； （3）对于转出、辞职、辞退、退休员工信息的删除； （4）按照一定的条件,查询,统计符合条件的员工信息； （5）至少应该包括每个员工详细信息的查询，按婚姻状况查询、学历查询、工作岗位查询等； （6）至少应该包括按学历、婚姻状况、岗位、参加工作时间等统计各自的员工信息； （7）对查询,统计的结果打印输出。 ((1) the importation of all kinds of information employees, including employees of the basic information, education information, marital status and title information, etc. (2) the staff changes all kinds of information (3) for the transfer, resignation, dismissal, retirement of employee information deleted (4) in accordance with certain conditions, query, statistics eligible employees (5) at least every employee should include details of inquiries, according to marital status inquiries, academic information, job inquiries, etc. (6) should include at least according to their academic qualifications, marital status, status, statistics, etc. to participate in the working hours of their employees (7) of the query, the results of statistical printout.)

Frequency-Shifting Properties of DTFT

基于simulink的APF系统仿真，主要是采用瞬时无功理论的ip-iq谐波电流提取法。(the simulink model for APF of Three-phase Three-Line Structure)

试用Newton插值多项式计算f(1.13)的近似值(Trial of Newton interpolation approximation of polynomial computation f1.13 )