md2dfluid2

This is Partial Implementation of Affine Invariant Contour Descriptor by Equal Area Normalization.I am working on it.

说明：  高等光学仿真（matlab版）-光波导、激光书中部分程序(Higher optical simulation (matlab)- waveguide, the laser part of the program in the book)

多正弦曲线条件叠加，生成各种曲线，值得参考(Conditions of multi-sinusoid superimposed to generate a variety of curves, it is also useful)

FDTD _ 3D code in matlab main structure of 3D fdtd code

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)

前向反馈BP神经网络算法matlab源程序，有详细的注释，是学习编写程序的基本例程。(Feedback prior to the BP neural network algorithm matlab source code, there are detailed notes, is to learn the basic programming routines.)

说明：  household变换，数值插值matlab源程序，插值算法，数值分析源码等。(household transformation, numerical interpolation matlab source, interpolation algorithms, numerical analysis of source code and so on.)

MPCA的代码，非常有用，适合初学者。建议初学者学学，入门(MPCA s code, very useful for beginners. Recommended for beginners to learn, entry)

code matlab program for calculate time process

DTFT plot the spectrum of a sinusoidal signal