hybrid_pseudo_L

弹性波数值模拟，可以修改模型，可以做波场模拟，做面波的地震记录((Numerical simulation of seismic surface waves, you can modify the model, you can do the wave field snapshots do surface wave seismograms))

说明：  利用二阶循环统计量去除同频带干扰的影响，同时，当信号为相干信号时，也可以去相关，得到较好的结果，(Using second-order cyclic statistics to remove the influence of interference in the same frequency band)

使用Y矩阵来综合得到耦合矩阵M中各元素的matlab源代码(The Y matrix to obtain an integrated coupling matrix M of each element matlab source code)

计算流体力学软件FLUENT计算空气龄的udf文件(FLUENT CFD software udf file to calculate the air age )

利用龙格库塔法（等步长，变步长）计算椭圆方程，双曲线方程，抛物线方程等。对各类微分方程进行数值计算。(The use of Runge-Kutta method (such as step, variable step size) calculated elliptic equations, hyperbolic equations, such as parabolic equation. Various types of differential equations for numerical calculation.)

二级转运站选址数学规划模型求解的lingo 程序(Lingo Program for Solving Mathematical Programming Model of Secondary Transfer Station Location)

Fortran常用算法程序集－第二版.pdf，很全的算法程序集，对提高Fortran编程能力大有帮助。(Fortran common algorithm assembly- Second Edition. Pdf, is the whole assembly algorithms, to improve the Fortran programming skills go a long way.)

Code source of Finite Element Analysis with Error Estimators

三角形网格划分, 自由网格和结构网格划分，包括主要的matlab文件和函数，使用main.m 执行(mesh triangle grid using matlab, free mesh and structured mesh. The file include mfiles and functions. The program could be run through main.m)

In this section we introduce the idea of Galerkin approximations by considering a simple 1-d boundary value problem