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说明：  数值分析第二版吕富同ppt 数值分析学习的参考资料(Numerical Analysis Reference materials for numerical analysis learning)

矩阵排序，按照行排序。 例如 矩阵[ 1 2 3 4 5 4 1 3 2 1 3 5 6 9 7]排序后为： [ 1 2 3 4 5 3 5 6 9 7 4 1 3 2 1] (matrix row sort )

说明：  用em算法估计高斯混合模型参数，matlab代码(Estimation of Gaussian mixture model parameters by EM algorithm)

说明：  Galerkin method,a numerical approximate method based on weighted residual method,commonly used in differential equation.(Galerkin method,a numerical approximate method based on weighted residual method,commonly used in differential equation.)

基于Visual C++的地震信号处理程序源代码，包括常用的FFT和Hilbert变换代码。(Visual C++ based on the seismic signal processing program source code, including the commonly used FFT and Hilbert transform code.)

说明：  1. 常用的数值积分方法(特别是梯形法、Simpson方法、 Cotes公式、Romberg算法以及Gauss 求积公式)的原理； 2. 复合梯形公式，复合Simpson公式，Romberg算法的程序(1. Commonly used numerical integration methods (especially trapezoid method, Simpson method Cotes formula, Romberg algorithm and Gauss quadrature formula); 2. Program of compound trapezoid formula, compound Simpson formula and Romberg algorithm)

基于经典的增广拉格朗日乘子法, 对求解一类带有特定结构（主要是针对凸规划）的非光滑等式约束优化问题, 我们提出、分析并测试了一个新算法. 在极小化增广拉格朗日函数的每一步迭代中, 该算法有效结合了带有非单调线性搜索的交替方向技术, 我们建立了算法的收敛性, 并用它来求解在带有全变差正则化的图像恢复问题.(Based on the classic augmented Lagrangian multiplier method, we propose, analyze and test an algorithm for solving a class of equality-constrained nonsmooth optimization problems (chiefly but not necessarily convex programs) with a particular structure. The algorithm effectively combines an alternating direction technique with a nonmonotone line search to minimize the augmented Lagrangian function at each iteration. We establish convergence for this algorithm, and apply it to solving problems in image reconstruction with total variation regularization.)

有限元法计算平板受集中载荷的程序，二维四边形网格(finite element method concentrated load plate by the procedure, two-dimensional rectangular grid)

这是一个matlab程序，包括了面波频散计算，及最小二乘反演的导数计算内容。(This is a matlab procedures, including a surface wave dispersion calculation, and calculation of the derivative of least squares inversion content.)

该程序用来对多种物质混合物吸收光谱数据进行分析，拟合出光谱曲线并且得到其各个峰值位置所在。(The program is used for a variety of mixtures of substances absorption spectral data analysis, curve fitting, and by their spectral location of each peak.)