save2pdf

蒙特卡罗方法概述和它的主要引例：蒲丰投针问题(Monte Carlo method outlined and its main primers Example:蒲丰needle cast problems)

e-book for engineering

0-1整数规划有很广泛的应用背景，比如指派问题，背包问题等等，实际上TSP问题也是一个0-1问题，当然这些问题都是NP问题，对于规模较大的问题用穷举法是没有办法在可接受的时间内求得最优解的，本程序只不过是一个练习，得意之处是用递归法把所有解都排列出来。另：胡运权所著的《运筹学基础及应用（第三版）》第97页的例3，我用本程序求解得到的结果是：最优解是x*=(1,0, 0, 0, 0)，最优值是f(x*)=8，但书求得最优解是x*=(1,0, 1, 0, 0)，最优值是f(x*)=4，是不是书中写错了，请大家验证。以下是源程序，大家可以任意使用无版权问题，另外，如果大家有大规模的0-1规划的问题也希望提供给我，谢谢。变量个数至少是3个(0-1 Integer Programming is a very broad background, such as assignment, bags and so on. actually TSP is a 0-1, of course, these problems are NP, for larger problem with the law is not exhaustive approach in an acceptable time frame to obtain the optimal solution. this procedure is only one practice, farewell tour is the method used recursive all of the solutions to show. Another : Hu Yun-author of "operational research, and application base (third edition)" Article 97 of the three cases, I use this procedure to solve the result is : is the optimal solution x = (1,0, 0, 0, 0), the optimal values of f (x*) = 8, but the book is to find the optimum solution x = (1,0, 1, 0, 0), the optimal values of f (x*) = 4, the book is not a mistake, please certification. Following is the source)

永磁同步电机 三相电机矢量控制 (permang magnet motor)

convert temperature C-->F, F-->C

在matlab环境下编写的程序，有具体的例子，适合于初学者。(The process of genetic algorithm under the environment of MATLAB, there is a specific example, suitable for beginners)

Script generates list of owners for files in choose directory

说明：  输入一串字符，统计其中各种字符：大小写字母、数字、空格、其他字符的个数(input string of characters, statistics on various characters : uppercase and lowercase letters, numbers, spaces, a number of other characters)

说明：  用ＭＡＴＬＡＢ里边带的ＬＰＣ程序进行参数提取.(MATLAB inside with the LPC parameter extraction procedures.)

运用传输矩阵法计算仿真一维光子晶体双缺陷(use TTM calculating the double defects of 1D PC)