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多维随机数的生成方法，一维随机数生成方法，高维随机数的生成方法(Generation methods of multidimensional random number, one-dimensional random number and high-dimensional random number)

该程序是利用GIvens变换进行矩阵的QR分解(The program uses GIvens transform to solve QR matrix.)

使用龙格-库塔间断Galerkin方法（RKDG）求解无粘流动Euler方程的程序，适用于计算流体力学RKDG方法的学习和研究。(Using the discontinuous Galerkin method (DG) for solving inviscid flow Euler equations procedures applicable to DG methods of study and research.)

BP神经网络用于函数拟合与模式识别，研究生时的现代信号处理的作业，包括数据分析、绘图等等。( BP neural network function fitting and pattern recognition, Modern signal processing jobs when the graduate, Data analysis, plotting, etc..)

《最优化理论与方法》书籍中的乘子法的源程序，该书中的很多案例都用此方法试验过，本代码是一个小案例，将目标函数和约束函数按自己的需求换掉就能进行所期望的运算(" Optimization Theory and Methods" books multiplier method of the source, the book' s many cases are tested using this method, the code is a small case, the objective function and constraints to replace it according to their needs can perform the desired operation)

说明：  线弹性umat钛合金,有cae文件，可以进行晶体塑性模拟(linear umat for titanium aloy)

C++实现的FFT，详细，简单，内含多个测试类(using C++ implements fft，including serials class)

对于空间上的任意几个点所在的直线或曲线，该程序可以拟合出的方程。(For any of several points on the space where the line or curve, the program can fit out of the equation.)

根据传输线理论，计算无耗传输线的输入输出阻抗，画图表示电压电流和阻抗随线路长的变化(Based on transmission line theory to calculate the input and output impedance of the lossless transmission line, drawing, said the change of voltage, current and impedance with the line length)

半导体激光器的数学计算 对速率方程 可能对你计算有点帮助