4678

某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定n 口油井的位置,即它们的x 坐标（东西向）和y 坐标（南北向）,应如何确定主管道的最优位置, 即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置。(An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time to determine the optimal position in charge of Road.)

protocol implementation for viewing data

这是code使用说明,对大家比较有帮助，新手必备(This is the code for use)

一个VC与MATLAB混合编程的简单示例，需用到ibmatpm.lib libmmfile.lib libmcc.lib libmatlb.lib libmx.lib libmat.lib(VC++ and Matlab mix-program demo ，must include ibmatpm.lib libmmfile.lib libmcc.lib libmatlb.lib libmx.lib libmat.lib)

本文的程序实现在屏幕上随机产生不同大小的雪花，并以不同的速度下降。相对于第一版，它在很多性能上做了优化，直接在桌面的上下文中绘制雪花。而且，现在也通过RedrawWindow，实现在桌面的图标(如任务栏)上绘制雪花了。你可以用它来学习GDI。(Falling Snow on Your Desktop! Part II This article explains how to create an application that makes it snow on the desktop. Since my previous article was published, I received many user inquiries about how to improve the program. This article demonstrates how to create snow flakes that fall on your desktop, by using the draw functions directly in the desktop context. When the application starts, it creates an array of snow flakes and starts the timers for each flake. Manipulation of the RedrawWindow function allows the drawing of flakes behind and over the desktop icons, making the application more impressive. )

一共5个代码，其中aufgabe和lms的功能是输入一个脉冲信号，根据不同的系统参数，得出输出信号。 cordic是一个算角度旋转的方法。 gray和graydecode是输入一个数字，对应输出每次只变一位的2进制输出信号。 因为我还是个学生，可能代码比较简单，希望站长谅解，谢谢！我真心希望能够成为该站的一员，学习到有用的知识。(A total of five codes, which aufgabe and lms function is a pulse input signal, depending on the system parameters, derived output signal. cordic is a rotation angle calculation method. gray and graydecode is to enter a number, corresponding to a time become an output of two binary output signals. Because I was a student, you may code for relatively simple hope that owners understand, thank you! I really hope to be a member of the station, to learn useful knowledge.)

检验实际分布是否与理论密度分布函数相符合。球面均匀分布的随机点在二维平面上的投影的密度分布(Verify whether the actual distribution consistent with the theoretical density distribution function. Spherical uniformly distributed random dot density distribution projected on a two-dimensional plane)

说明：  光斑聚集的C++程序调用，以前MATLAB计算要15分钟，现在只要3分钟就可以算完。运算超快。(Gathering spot called C++ program, MATLAB calculations to 15 minutes, now only 3 minutes. Ultrafast operation.)

各种经典PID的MATLAB程序，主要涉及温度控制，压力控制，液位控制等(All kinds of classic PID MATLAB procedures, mainly related to the temperature control, pressure control, level control, etc )

windows控制台下的一个小字典程序,可以自己添加字典,使用.(A small dictionary program under windows console, you can add your own dictionary to use.)