Gausscolumns

一个模拟退火算法的例子，程序虽然简单但降温条件，降温函数，内外终止准则都有。可供初学者参考。(Example of a simulated annealing algorithm, the program is simple but cool conditions, cooling function, both inside and outside the termination criterion. Reference for beginners)

说明：  1、随机生成一个5*5矩阵A，元素符合均匀分布；再随机生成一个5*5矩阵B，元素符合正态分布。对A和B进行加、减、乘、除、比较等矩阵运算，查看运算结果。 2、创建5阶魔术矩阵，求A的行列式、特征值、逆、秩、迹、条件数。 3、假设矩阵 ，求A的LU分解、正交分解、特征值分解、奇异值分解。 4、创建6阶单位稀疏矩阵，并显示其全部元素。 (1, randomly generated a 5* 5 matrix A, elements in line with uniform distribution then randomly generated a 5* 5 matrix B, elements in line with normal distribution. Pairs of A and B to add, subtract, multiply, divide, comparison matrix operations, view the results of operations. 2, create a 5-order magic matrix, find A, determinant, eigenvalues, inverse, rank, trace, the condition number. 3, assuming that matrix, find A, LU decomposition, orthogonal decomposition, eigenvalue decomposition, singular value decomposition. 4, create a six-order unit of sparse matrix, and display all of its elements.)

利用matlab编写的二维fdtd，加点源，pml吸收边界，适合fdtd初学者学习研究(Prepared using matlab dimensional fdtd, plus a point source, pml absorbing boundary, suitable for beginners study fdtd)

很全的matlabGUI设计例程，包括下拉菜单设计，选择设计等。(Very and full of matlabGUI design routines, including the drop-down menu design, selection and design.)

优秀的ansys ；matlab计算；分析；混凝土开裂计算(Excellent ansys; matlab calculation; analysis; concrete cracking calculation)

matlab编程，包含了matlab编程使用方法与编程技巧，详细地介绍了matlab语言的使用和平时编程注意的要点。(matlab programming, matlab programming includes the use of methods and programming skills, detailed description of the matlab programming language to use and usually watch out for.)

这个函数用来调取并保存在excel表中定义的原始参数( This function is used for retrieval and stored in excel original parameters defined in the table)

narmamaglev 神经自校正控制系统，narma-l2控制模块，反馈线性化控制，直接自校正控制(narmamaglev neural self-tuning control system, narma-L2 control module, feedback linearization control, direct self-tuning control)

matlab编写的蛙跳聚类算法，可实现聚类分析，输出分类和准确率(Leapfrog clustering algorithm matlab prepared to achieve clustering analysis, classification and output accuracy)

this is the security code to maintain the factor of security