user-subroutines-l4-usdfld

Fortran常用算法程序集-徐士良著,本书讲解了各种数值计算方法及其程序实现,此为程序第一部分,(Fortran commonly used algorithm assembly-Xu Shiliang, this book explains various numerical calculation methods and their program implementation, this is the first part of the program.)

矩量法仿真电磁辐射和散射的源代码（c++） (Moment Method Simulation of electromagnetic radiation and scattering of the source code (c++))

说明：  在科学与工程计算中，经常遇到求解非线性方程组的问题；非线性方程组在收敛速度及收敛性比线性方程组要差，特别对于非凸的非线性方程组，其求解更是困难。下面简要介绍非线性方程组的三种解法——牛顿法、拟牛顿法、同伦算法，分析三种解法的适用性，并附Matlab原程序。(Scientific and engineering computing, often encounter the problem of solving nonlinear equations speed of convergence of nonlinear equations and linear equations worse than convergence, especially for non-convex nonlinear equations, which is even more difficult to solve . The following briefly describes three solutions to nonlinear equations- Newton method, quasi-Newton method, homotopy method, the applicability of the three solutions, along with Matlab original program.)

这是一本关于大型有限元模拟软件ABAQUS的英语书籍，从入门介绍到应用实例，还可以学习英文。如果你需要你一定会喜欢的。(English contents: 1. Introduction 2.Bar Element 3.Beam Element 4.Rigid Jointed Frames 5.Stress and Strain Analysis 6.Weighted Residual Methods 7.Finite Element Approximation 8.Numerical Integration 9.Plane Problems 10.Axisymmetric Problems 11.Thin and Thick Plates )

vc++实现的矩阵运算方面得代码，很不错的，内容绝对好吃(matrix operations, code vc++ achieve very good, the content is absolutely delicious)

最优化的bfgs算法，是采用matlab编程(BFGS optimization algorithm, using matlab programming)

随机森林算法，适合初学者阅读，包括公式，资料，调试(Random forests algorithm, suitable for beginners to read, including formulas, data, commissioning)

润滑理论的matlab求解程序,包括弹流和刚流润滑.(Lubrication theory matlab solving procedures, including Elastohydrodynamic lubrication and just.)

利用matlab软件进行数值编程，优化计算。(Matlab software is used for numerical programming and optimization calculation.)

通过完整ansys命令流，模拟分析悬索桥变形。希望对学习ansys有限元及桥梁工程的技术人员有所帮助。(无)