lle

说明：  数学建模工具箱 有丰富的数学建模模型，全部用matlab语言编写(Mathematical Modeling Toolbox)

关于焊接残余应力的Abaqus子程序-DFLUX(The Abaqus subprogram-DFLUX on welding residual stress)

平面应力、平面应变有限元数值计算,适合于有限元编程入门(plane stress and plane strain for numerical calcualtion)

计算方法：主要是高斯消去法的C语言算法实现(Calculation method: Gaussian elimination)

包含优化类的几个简单示例程序，包括四元数的各种计算,一个计算声子晶体结构的一维传递矩阵法。( Optimization class contains several simple sample programs, Including quaternion various calculations, A one-dimensional transfer matrix method to calculate the phonon crystal structure.)

把 Maxwell 方程式在时间和空间领域上进行差分化。利用蛙跳式(Leap frog algorithm)--空间领域内的电场和磁场进行交替计算，通过时间领域上更新来模仿电磁场的变化，达到数值计算的目的。(The Maxwell equations in time and space on the field differencing. Using the leapfrog (Leap frog algorithm)- Space field for alternating electric and magnetic fields calculated by the time domain electromagnetic field is updated to mimic the changes to achieve the purpose of numerical calculation.)

说明：  二分法算法文件，龙格库塔法，高斯法，数值计算二分法求解，适用于初学数值计算人群(Dichotomy algorithm file)

采用中心差分法，基于蛙跳法计算流体动力学问题(using central-time central-space and leapfrog programe for CFD simulation)

C++中矩阵运算的实现 nr3.h为其他的书籍代码，测试环境为VS2008(Achieve C++ in matrix operations nr3 code for other books)

自己编的5种调制信号，通过反复训练模板能有较高的识别率，DC-DC部分采用定功率单环控制。( Own five modulation signal, Through repeated training VxODOGFlate have higher recognition rate, DC-DC power single-part set-loop control.)