HLL1

梁的有限元开裂分析代码，包括不同的裂纹形式，裂纹数目等(Finite element analysis of beams cracking the code, including different forms of crack, crack number, etc.)

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.)

求解旋量玻色爱因斯坦凝聚单个涡旋态的mathematics程序(Solving spinor Bose-Einstein condensates singly quantized vortex mathematics program)

对比卡尔曼滤波和维纳滤波对一阶gaussian-markov过程的滤波预测。(Contrast Kalman filter and Wiener filter of first-order gaussian-markov forecast filtering process.)

计算器编程代码，便于需要编程计算器的学员查询相关代码(Calculator programming code, to facilitate students in need of programming calculator related code)

设计迭代、有限差分法、有限元的matlab优化计算程序(Matlab design iterations, finite difference method, finite element calculation program optimization)

说明：  卡尔曼初始对准主程序，说明了卡尔曼滤波在初始对准里的应用(Main program of Kalman initial alignment)

c++运算符程序编写运用，包括+，-，*，/，>>,<<(c++ operator programming use, including+,-,*, /, > > , < < )

说明：  适合初学者学习的fluent网格划分以及udf动网格(A fluent udf example)

流体力学SIMPLE算法（C语言编程实现）需自己设定边界条件(SIMPLE algorithm)