830d123f63147ce30f8eedc0a5462602

A=(aij)20×20的LDLT分解与Cholesky分解(A = (aij) 20 × 20 in the LDLT decomposition and Cholesky decomposition)

沃伦·巴菲特（Warren Buffett，1930年8月30日－），美国投资家、企业家、及慈善家，被称为股神，尊称为“奥玛哈的先知”、或“奥玛哈的圣贤”，目前拥有约620亿美元的净资产，根据《福布斯》杂志公布的2008年度全球富豪榜，他已经超过卡洛斯·斯利姆·埃卢和比尔·盖茨成为全球首富。 (Warren Buffett (Warren Buffett, 1930 Nian 8 30-), American investors, entrepreneurs, and philanthropist, known as Unit God, affectionately known as " Omaha' s prophet," or " Omaha sages " , now has about 620 billion in net assets, according to" Forbes " magazine published 2008 annual global rich list, he has more than Carlos Slim Helu and Bill Gates as the world' s richest man.)

MATLAB语言常用算法程序集，包含基础的变成技巧以及数值算法，是很好的学习材料(Assembly algorithm used MATLAB language, including basic skills and become a numerical algorithm, is a very good learning materials)

吉布斯定轨法。 输入：轨道上任意三个点的位矢(R1,R2,R3)； 输出：质点在R2端点时的速度V2；ierr是个判断符号，返回的ierr是零的话，就说明‘R1,R2,R3’共面，如果ierr是1的话说明‘R1,R2,R3’不共面(正常情 况下，要构成轨道的话，‘R1,R2,R3’一定共面 ，即ierr是零，如果ierr是1的话说明输入的‘R1,R2,R3’不共面不能构成轨道。 此函数用于：任意给定三个空间共面的向量，可以确定质点在R2处的速度V2，也就得到了轨道上的一个状态向量(R2,V2),调用前面的函数就可以确定其轨道，及任意时刻的状态。(Gibbs set the track method. Input: track any three points of the bit vector (R1, R2, R3) output: particle at R2 endpoint speed V2, ierr is a judgment symbol, The ierr that is returned is zero, then, it means' of R1, R2,, R3, ' coplanar, if ierr is 1, then description' of R1, R2,, R3, ' not a total surface (under normal circumstances, you want to constitute a track, then,' of R1, R2, R3, ' a certain total surface, ierr is zero, if ierr is an instructions to enter the words ' of R1, R2, R3' coplanarity can not constitute a track. This function is used: for any given three space vector of the surface, can determine the particle at the speed V2, R2 also track a state vector (R2, V2), call the previous function can determine its orbit, and at any time of the state.)

Essential MATLAB for Engineers and Scientists

some kinds of frequency interpolations.which are used to processing frequency and IFFT to image spce to new image

％ [BestPop,Trace]=fmaxga(FUN,LB,UB,eranum,popsize,pcross,pmutation) ％ Finds a maximum of a function of several variables. ％ fmaxga solves problems of the form: ％ max F(X) subject to: LB <= X <= UB ％ BestPop--------最优的群体即为最优的染色体群 ％ Trace----------最佳染色体所对应的目标函数值 ％ FUN------------目标函数 ％ LB-------------自变量下限 ％ UB-------------自变量上限 ％ eranum---------种群的代数,取100--1000(默认1000) ％ popsize--------每一代种群的规模；此可取50--100(默认50) ％ pcross---------交叉的概率,此概率一般取0.5--0.85之间较好(默认0.8) ％ pmutation------变异的概率,该概率一般取0.05-0.2左右较好(默认0.1) ％ options--------1×2矩阵,options(1)=0二进制编码(默认0),option(1)~=0十进制编码,option(2)设定求解精度(默认1e-4)( [BestPop, Trace] = fmaxga (FUN, LB, UB, eranum, popsize, pcross, pmutation) Finds a maximum of a function of several variables. Fmaxga solves problems of the form: max F (X) subject to : LB <= X <= UB BestPop-------- optimal chromosome groups is the best group Trace---------- chromosome corresponding to the best objective function value FUN------------ objective function LB------------- variable lower limit since the UB------------- variable upper limit eranum--------- populations algebra, take 100- 1000 (default 1000) popsize-------- population size of each generation this desirable 50- 100 (default 50) pcross--------- crossover probability, the probability of a general check 0.5- 0.85 between the better (default 0.8) pmutation------ mutation probability, the probability of 0.05 general admission better about-0.2 (default 0.1) options-------- 1 × 2 matrix, options (1) = 0 binary code (default 0), option (1) ~ = 0 decimal coding, option (2 ) set accuracy (default 1e-4))

this program basically implementation of new scheduling algorithm in NS3 for LTE/4G. it is developed in ns3 which is open source platform used cpp.

实现24位RGB彩色图像，先转化为灰度图像，而后用大津法实现二值化，并显示阀值。(To achieve 24-bit RGB color images, the first converted to grayscale images, then using Otsu binarization method to achieve and display threshold.)

este es un fitro paso alto muy conveniente para el uso en ingenieria electronica y mas aplicaciones