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说明：  外国人开发的电磁时域有限差分方法工具包 Electromagnetic Finite-Difference Time-Domain (EmFDTD) is a basic two-dimensional FDTD code developed at the School of Electrical Engineering, Sharif University of Technology. This code has been written based on the standard Yee s FDTD algorithm. Applications include propagation, scattering, and diffraction of electromagnetic waves in homogeneous and non-homogeneous isotropic media for in-plane propagating waves. Negative permittivites or permeabilities as well as dispersion is not included. Zero, Periodic, and Perfectly Matched Layer boundary conditions may be selectively applied to the solution domain. The program is best suited for study of propagation and diffraction of electromagnetic waves in Photonic Crystal structures. EmFDTD is written in MATLAB language and has been tested under MATLAB 5.0 and higher versions.(Foreigners developed electromagnetic FDTD method Toolkit Electromagnetic Finite-Difference Time-Domain (EmFDTD) is a basic two-dimensional FDTD code developed at the School of Electrical Engineering, Sharif University of Technology. This code has been written based on the standard Yee s FDTD algorithm. Applications include propagation, scattering, and diffraction of electromagnetic wavesin homogeneous and non-homogeneous isotropic mediafor in-plane propagating waves. Negative permittivites or permeabilities as well as dispersion is not included.Zero, Periodic, and Perfectly Matched Layer boundaryconditions may be selectively applied to the solution domain.The program is best suited for study of propagation anddiffraction of electromagnetic waves in Photonic Crystalstructures.EmFDTD is written in MATLAB language and has beentested under MATLAB 5.0 and higher versions.)

Cordic算法的Matlab实现，里面有一些数据文件是程序产生的。这个是Cordic算法未改进版本。(It s an implementation of conventional CORDIC algorithm。)

三维时钟 非常漂亮 可以通过这个程序了解一些里面的逻辑思维 非常有用(sanwei shizhong piaoliang useful)

《数值分析》教材中对应的每章中例题的matlab源程序(numerical analysis matlab code)

fit_ellipse - finds the best fit to an ellipse for the given set of points. a matalb realization(fit_ellipse- finds the best fit to an ellipse for the given set of points. a matalb realization)

FlOYD 算法 用于tSP计算旅行商 (FlOYD algorithm is used to calculate the traveling salesman tSP)

利用matlab做线性回归,简单，好用，可以处理一般的回归问题(Using matlab to do linear regression, simple, easy to use, can handle general regression problem)

无线脉冲滤波器和有线脉冲滤波器，两种滤波器的产生。(FIR, IIR filter generates two kinds of)

读取激光雷达点云数据的头文件数据块，将点云数据的基本信息记录在相应的变量中。(Read lidar point cloud data header file data block, the basic information of the point cloud data recorded in the corresponding variable.)

说明：  K-MEANS算法是输入聚类个数k，以及包含 n个数据对象的数据库，输出满足方差最小标准的k个聚类。 (K-MEANS algorithm is the input number of clusters k, and n a data object that contains the database and output to meet the standard minimum variance k-clustering.)