xianxingdaishu

一个很好的cost231信道建模程序，并有图示说明(A good cost231 channel modeling program, and a note icon)

说明：  大地电磁magnetotelluric数据NLCG反演预处理及后处理(magnetotelluric data NLCG inversion pre- & post- processing)

好东西，虽然不是很难，但是这样可以节省不少时间，可以把精力投入到难度较大的改进以及应用上了，而不用在大家都会的基本程序上花挺多时间(Good things, though not difficult, but it saves a lot of time can focus into the more difficult to improve as well as the application, and not everyone will be in the basic procedures for the time spent挺多)

数字图像处理和机器识别C++和matlab识别书籍第一部分，讲解详尽，适合学习(Digital image processing and machine identification C++ and matlab identification books first part, explain the detailed, suitable for learning)

说明：  多目标粒子群算法，求解多目标问题的经典的算法之一(multi-object PSO, one of the classical algorithms for solving multi-objective problems)

一个自动控制专业的实用程序。以一个四阶系统为例，对任意的参数矩阵 研究其反馈镇定性，通过因式分解法，得到所有能镇定G的 一般形式的K值，用matlab进行了仿真。(Automatic control of a professional utility. A fourth-order system as an example, the parameters of any study the feedback stabilization of the matrix, and through the factorization method, by all G to calm the general forms of K values, using matlab simulation.)

说明：  遗传算法用于求函数最大值，可以修改函数名和迭代次数(A function of genetic algorithm is used to seek the maximum, you can modify the function name and the number of iterations)

很有用的一本工具书，强烈推荐。 对matlab上手很有用(a very good book to study matlab)

给你一个非常大的整数x，(-10^400 <=x<= 10^400)，请统计x的每一位，分别输出9,1,2出现的次数. Input 一个大整数 Output 一共三行，第一行是9出现的次数，第二行是1出现的次数，第三行是2出现的次数。 Sample Input 912912912910915902 Sample Output 6 5 4(Statistical figures)

数值计算中SOR迭代法的Matlab程序(numerical calculation SOR iteration of the Matlab program)