logistic

说明：  本代码提供了一个无线传感网路由协议的仿真，适合于初级学者。(This code provides a wireless sensor network simulation by the protocol, suitable for junior scholars.)

电子通信系统的建模与仿真 第5章 数字通信系统的仿真 5.1 概述 5.2 信源 5.3 信源编码 5.4 调制技术（模拟调制） 5.5 调制技术（数字调制） 5.6 多元调制仿真 5.7 差错控制 5.8 交织与置乱 5.9 频率合成 5.10 多址技术 5.11 信道仿真 (Electronic communications system modeling and simulation of Chapter 5 of Digital Communication System Simulation 5.1 overview 5.2 Source 5.3 Source Coding 5.4 modulation technique (analog modem) 5.5 modulation technology (Digital Modulation) modulation over 5.6 yuan simulation 5.7 Error Control 5.8 intertwined with Purchase 5.9 Frequency Synthesizer chaotic sites more than 5.10 channel simulation technology 5.11)

说明：  系统辨识工具箱, 使用命令行估算线性模型(system identification toolbox)

说明：  今天看见一个极品 SVM工具箱，很独特，速度也快，不敢独享！ http://asi.insa-rouen.fr/enseignants/~arakotom/toolbox/index.html(Need SVM toolbox today saw a very unique and quick, not exclusive! http://asi.insa-rouen.fr/enseignants/ ~ arakotom/toolbox/index.html)

Aerospace engineering codes for low speed aerodynamics

dafen方程的计算，分岔，吸引子，详细过程，包含图形(dafen equation calculations, bifurcation, attractor, the detailed process, including graphics)

复杂网络生成程序，该程序详细介绍了复杂网络生成机理，对初学者帮助很大(Complex network build program, which details the formation mechanism of complex networks, very helpful for beginners)

说明：  matlab混合编程（书中程序） 第四章 (matlab mixed programming (program book) Chapter IV)

钢骨混凝土梁，mathcad格式。Steel reinforced concrete beam(Steel reinforced concrete beam)

Boundary element method function [index,g,h,a,unb,x,u,un,uin]=bemlabecom(n,c,index,in,cin) [index,g,h,a,unb,x,u,un,uin]=bemlabecom(16,[0 0 0.25 0 0.5 0 0.75 0 1 0 1 0.25 1 0.5 1 0.75 1 1 0.75 1 0.5 1 0.25 1 0 1 0 0.75 0 0.5 0 0.25 0 0],[1 0 1 0 1 0 1 0 0 200 0 200 0 200 0 200 1 0 1 0 1 0 1 0 0 100 0 100 0 100 0 100],9,[0.25 0.25 0.50 0.25 0.75 0.25 0.25 0.50 0.50 0.50 0.75 0.50 0.25 0.75 0.50 0.75 0.75 0.75]) in bemlabecom2 we change a & unb to : a1 a2,unb1 unb2 n=number of nodes=number of element=number of point c=matrix that determine the coordinate of point m=coordinate of nodes in global coordinates index: determine u or un for boundary nodes in:number of internal nodes cin: coordinate of internal nodes