function

有一学生成绩管理数据库如下表，要求建立一SAS数据集score，并输出显示 创建一个新的数据集class，新增平均成绩aver变量和等级考评grade变量，grade的值是根据aver值的大小给出A、B、C、D四个等级，并显示新数据集class(A student achievement management database as the table, called for the establishment of a SAS data set score, and output display create a new data set class, add an average score aver evaluation variables and grade level variables, grade values are based on the size of a aver value the A, B, C, D four grades, and displays the new data set of class)

Display the analytic solution of the 2D Helmholtz equation for a dielectric cylinder (i.e. the scattered field and the transmitted field). You can specify the following parameters: radius, wave number outside and wave number inside the cylinder.

说明：  独到精辟的算法及例子，通过MATLAB语言由浅入深的介绍了控制系统的仿真(Original algorithm and brilliant examples MATLAB language through easy-to-digest introduced control system simulation)

p pi and pid control which is very important to control strategy .

包括了几类MATLAB实用实例源程序，希望大家能所用(MATLAB includes practical examples of the types of source code, hope that we can use)

随机信号处理原理与实践(课本原代码) 作者杨鉴(matlab code in )

these packages is for generating random data

sorce code for line flow

Diffraction Patterns 1st program gives the image of Gaussian beam, the 3nd calculate the pattern of the diffraction using FFT.

这是通过hfss软件设计915m超高频偶极子天线工程 此设计只通过仿真验证 没有制作实物验证(It is designed to 915m UHF dipole antenna hfss software engineering through the design just does not make physical verification by simulation)