MtlabCFD

文件为C#矩阵运算类，包含了多种形式的矩阵定义，能够进行多种矩阵运算，如矩阵四则运算、求逆、转置等，十分方便用于实际开发。(File for the C# matrix operations class, contains the definition of various forms of matrix, to carry out a variety of matrix operations, such as matrix arithmetic, inversion, transpose, etc., is very convenient for actual development.)

用最小二乘法进行电力系统状态估计，包含IEEE30节点的电力系统图(Using least squares power system state estimation, including IEEE30 bus power system diagram)

细梁的振动，无量纲振动控制方程关于梁的动力响应(Beam power with applications from mechanical aerospace electrical and civil engineering free vibration nondimendional frequency coefficients on the dynamic behaviour of the beam)

说明：  计算两组向量之间的旋转矩阵。输入参数为在两个不同坐标系中的同名向量（模为1），返回参数是一个3X3的旋转矩阵。(The function of RM realize the rotation between two sets of vectors, whose magnitude are 1, defined in two different refrence frames. Input parameters are two sets of vectors r and b, return value is a rotaton matrix.)

内点惩罚函数法C语言程序，适用于机械行业机械优化设计(SUMT)

Fortran编的关于分子动力学模拟的程序(Fortran programs compiled on the molecular dynamics simulations)

FCTVOF的主程序,其中FCTVOF是求解关于VOF值的运输方程的一种经典算法，可求出各时刻的各网格的VOF值，从而利用界面重构技术实现界面的重构。(FCTVOF main program, including FCTVOF is for solving the transport equation of VOF value a classic algorithm, can calculate the VOF value of each moment of each grid, so as to make use of the interface to refactor the technical implementation interface. )

利用FFT估计正弦信号的频率,要估计一个叠加了高斯白噪声的正弦信号 的频率 ，可以通过对x(n)做傅里叶变换，得到频谱图，找出幅度的最大值对应的频率值 ，进行多次变换，求出均方误差 。改变信噪比SNR，通过仿真可以得出随着信噪比增加，均方误差减小。(Sinusoidal signal using FFT frequency estimation, to estimate a Gaussian white noise superimposed on the frequency of sinusoidal signals, can be achieved by x (n) be the Fourier transform to get spectrum to identify the magnitude of the frequency value corresponding to the maximum , several transformations, find the mean square error. Change the signal to noise ratio SNR, the simulation can be drawn as the SNR increases, the mean square error decreases.)

说明：  线性代数及其应用 第4版 1-Linear Algebra and Its Applications 4ed.MIT Gilbert Strang(1-Linear Algebra and Its Applications 4ed.MIT Gilbert Strang)

带LASSO修正的LARS算法 稀疏表示(LARS with LASSO modification Sparse Representation)