大家请多指教！！！挺不错的哦！

利用两点距离计算经纬度的matlab程序，欢迎交流。-use latitude and longitude distance calculation procedures of Matlab, welcomed the exchange.

一个复数类的实现方法，虽然简单，但对于初学者对于ｍｆｃ编程很有指导意义，这也是本人初学ｍｆｃ的时候第一个实列。-kind of a complex method, though simple, but for beginners for very mfc programming guide, This is my time learning mfc is an out clause.

code which produces plots of grid, velocity vectors, profiles of velocity components or temperature, contours of pressure, temperature or streamlines, and colour filled contours for pressure, temperature or streamfunction.

通过邻接矩阵构造图-through adjacency matrix structural map

本程序的要求是已知几个节点x及节点函数f（x），要求近似函数！只要输出每点函数，对角线上的值，和最后一行的值，为继续插值准备！ 例如：0.00 0.00000 0.20 0.20134 0.30 0.30452 0.50 0.52110 得到结果：0.00000 0.20134 1.006700 0.30452 0.083666 0.52110 1.082900 0.170333 0.173334 f(0.230000)=0.249337 Rx(0.230000)=-1.46917e-09f-the procedural requirements are known, several nodes and node x function f (x), requiring similar function! As long as output per function point, the value of a diagonal, and the last line of duty, prepared to continue interpolation! For example : 0.00 0.00000 0.20134 0.30 0.20 0.50 0.52110 0.30452 outcome : 0.00000 0.30452 0.20134 1.006700 1.082900 0.083666 0.52110 f 0.170333 0.173334 (0.230000) = 0.249337 Rx (0.230000) =- 1.46917e- 09f

应用背景你玩儿过扫雷游戏吧？Windows操作系统中带了这个小游戏，那个系统叫什么来着？在游戏中要想过关，就必须要在一个 NxM 的区域上找出所有的地雷。游戏过程中，计算机会在地图上显示一些数字从而帮助你确定哪里有地雷。关键技术Have you ever played the game? Windows operating system with this little game, the system called what? In the game to pass, it is necessary to find out all the mines in a NxM area. In the process of the game, the computer will show some numbers on the map to help you identify where you are.

算法导论第四次上机题，01背包回溯法

随即数的产生 在计算机仿真系统中的应用-then the emergence of several computer simulation system applications

Python实现的协同过滤推荐算法，包括UserBaseCF和ItemBaseCF两种，使用的数据集是Movielens数据集，包含在源码中。