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粒子群算法，也称粒子群优化算法或鸟群觅食算法（Particle Swarm Optimization），缩写为 PSO， 是由J. Kennedy和R. C. Eberhart等开发的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法(Particle Swarm Optimization (PSO), also known as Particle Swarm Optimization (PSO), is a new evolutionary algorithm developed by J. Kennedy and R. C. Eberhart. PSO is a kind of evolutionary algorithm, which is similar to simulated annealing algorithm. It starts from random solution and searches for the best solution by iteration. It also evaluates the quality of solution by fitness. But it is simpler than genetic algorithm rules. It has no Crossover and Mutation operation of genetic algorithm. As a result, it searches for global optimum by following the optimal value currently searched. This algorithm has attracted the attention of academia for its advantages of easy implementation, high accuracy and fast convergence, and has shown its superiority in solving practical problems. Particle swarm optimization is a parallel algorithm)

读取两日期，并算两个日期间的天数。示范日期类型的操作。　(read two dates, and count the period of two days. Model date type of operation.)

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齿轮检测软件，用来检测或计算齿轮用。 无密码。- Gear examination software, uses for to examine or calculates the gear to use. Does not have the password.

两列8张缩略图的焦点图切换特效，这个比较不错，比较大气，JS+FLASH+XML，有缩略图，适合影视推荐展示。把缩略图放置在右侧成两列表排列。

一键镶嵌封包，很快很好用 欢迎下载尝试。(One key inlay package, quickly and well used)

1.NEH principle (1) the processing time of each workpiece on all machines is summed; the summed values are sorted from large to small; (2) first select the first workpiece (the longest processing time), with the second workpiece into the first workpiece before and after the two positions, calculate makespan, small is saved; (3) fix the sequence in the previous step, insert the next workpiece into the previous workpiece, and compare the smallest makespan and save it; (4) Repeat the previous step to arrive at the final result.

java版的拼图游戏,玩家必须在规定时间内把打乱的图片拼完整.-java version of the puzzles, players must be within the specified time disruptive fight integrity of the picture.

在C#程序窗口中显示图片及文字，比较基础的C#例子，面向初学者，在C#的窗体中打开一幅图片，并显示文字，真的简单，高手绕行吧。

gams代码，cge学习中关于实例的代码比较少，这份文件详细的CGE建模和GAMS代码(Gams code, CGE learning about instance code is relatively small, this document detailed CGE modeling and GAMS code)