lab4

本程序的功能是：程序复位后，数码管从0开始显示数字，直到99，然而又从0到99循环显示(control the digital led from 0 to 99,then back to 0 and repeat 0 to 99.)

说明：  瑞利随机数的生成，通过两个同方差的正态分布而求得，并求出其PDF和CDF(Rayleigh random numbers generated by two normal distribution with variance that obtained and solved its PDF and CDF)

说明：  《MATLAB 7.0从入门到精通》一书的配套程序——第6章的程序。(&quot MATLAB 7.0 from the entry to the master,&quot a book supporting the process- the procedures in Chapter 6.)

DTMDefaultBaseTraversers extends DTMDefaultBase.

针对多种光栅，传输谱反射谱进行仿真，同时对反射谱加入切趾函数抑制旁瓣，MATLAB仿真(For a variety of gratings, the transmission spectrum reflection spectrum is simulated, and the apodization function is added to the reflection spectrum to suppress side lobes, MATLAB simulation)

计算物理方法教案，可以用学习处理物理问题的数学方法，对编程大有帮助(Methods of Computational Physics lesson plans, can learn to deal with the problem of mathematical physics, on the program go a long way)

discrete wavelet transform for image watermarking

讲述MATLAB的使用教程，由浅入深讲解详细(About the use of MATLAB tutorial, progressive approach to explain in detail)

说明：  matlab光谱预处理之光谱平滑，包括移动平滑及SG平滑(Spectral smoothing of MATLAB spectral pretreatment, including moving smoothing and SG smoothing)

POWER_FLOW Function to perform a power-flow analysis. Function power_flow reads a data set describing a power system from a disk file, and performs a power-flow analysis on it. The only argument is the name of the input file. There are three types of lines in the input file. The "SYSTEM" line specifies the name of the power system and the base apparent power of the power system in MVA.