P_and_S_waves

matlab没有提供画椭圆的函数，该函数在获得椭圆中心 长轴 短轴后进行画椭圆，其中使用复变函数。(matlab ellipse paintings did not provide the function, which was oval in the center long axis of oval painting after the short axis, in which the use of complex variable function.)

2007年全国大学生数学建模获奖论文所需程序代码，其中有较详细的matlab编程，应该有些用处吧(Mathematical Contest in Modeling 2007, papers required for award-winning code, including more detailed matlab programming, it should be of some use)

Generate a 3D point plot of L=(x,y,z) using the values in the vector c to determine the color of each point. If c is empty, then z (column 3 of L) is used to color the plot. The data points are sorted so that plot3 is only called once for each group of points that map to the same color. The upper and lower limits of the color range (and the z axis) can be defined with crange. This is useful for creating a series of plots with the same coloring. The colormap (but not the colorbar) is flipped upside down if crange is given as [max min] instead of [min max]. The figure handle is returned if an output argument is given.

GRAVITY Gravitational acceleration from Latitude and Z References: Gill, A. E., Atmosphere-Ocean Dynamics, Volume 30 of International Geophysics Series, Academic Press Inc., New York, 1982. Fofonoff, N. P., and R. C. Millard Jr., Algorithms for computation of fundamental properties of seawater. Unesco Tech. Pap. in Mar. Sci., No. 44, 54 pp.

一个程序，可以进行人脸识别和人眼跟踪，基于Matlab编写。(A program which can detect face and track eys, based on Matlab)

逆矩阵　行列式的值 ｍａｔｌａｂ 数值计算方法　源程序(Determinant of the value of the inverse matrix numerical method matlab source)

Matlab 官方工具箱使用说明programming_tips编程技巧.pdf(Matlab toolbox for use of official programming_tips programming skills. Pdf)

matlab写的摄像头标定程序，可作为机器视觉编程参考(Matlab written by the camera calibration procedure can be used as reference to the machine vision programming)

上述代码对光纤通信系统中的常用NRZ码时域和频域特性进行了分析，NRZ适于短距离低速率光纤通信系统中使用，其频谱特性相对于RZ码频谱较窄，但峰值功率较高，对非线性容忍度较小(NRZ,modulation,PMD analysis)

自己写的matlab小程序，改进了下euler。可以参考下(Their own small programs written in matlab to improve the next euler. Can refer to)