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题目：有1、2、3、4个数字，能组成多少个互不相同且无重复数字的三位数？都是多少？ 1.程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去 　　　　　　掉不满足条件的排列。 (Title: There are numbers 1,2,3,4, how many can be composed of distinct three-digit numbers without repetition? Is how much? 1. Program Analysis: fill in the hundred, ten, a bit of the numbers are 1,2,3,4. Composed of all the permutations and then remove the arrangement does not meet the conditions.)

说明：  这是经典的G-S算法matlab程序源代码，希望对大伙有帮助！！！！ (this is G-S algorithm ，hope will help you all！)

说明：  光纤LP模式,光纤模式计算，纤芯模式，有效折射率(Fiber LP mode, fiber mode calculation, fiber core mode, effective refractive index)

matlab界面设计的中文资料，对初学者有用(matlab interface design of the Chinese data, useful for beginners)

Matlab code of individuals projection on the main axes using PCA.

本文主要讲述了LTE的几种比较常见的算法，比较容易理解(This paper describes several of the more common LTE algorithms, easier to understand)

三次样条的插值计算，实验结果很好，经度可达到负二次方。(Cubic spline interpolation, the experimental results very well, longitude to the negative quadratic.)

internation transaction paper for implementation in matlab

图像认证中的Image Hashing技术，源码最新下载自美国名校The University of Texas at Austin的Brian L. Evans教授的实验室网站 (Matlab programs for image hashing downloaded from Professor Brian L. Evans in University of Texas at Austin in USA)

说明：  BT法估计功率谱，由自相关函数来估计信号的功率谱(BT power spectrum estimation, by the autocorrelation function to estimate the signal power spectrum)