北京大学ACM比赛题目 In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture: Every even number greater than 4 can be written as the sum of two odd prime numbers. For example: 8 = 3 + 5. Both 3 and 5 are odd prime numbers. 20 = 3 + 17 = 7 + 13. 42 = 5 + 37 = 11 + 31 = 13 + 29 = 19 + 23. Today it is still unproven whether the conjecture is right. (Oh wait, I Have the proof of course, but it is too long to write it on the margin of this page.) Anyway, your task is now to verify Goldbach s conjecture for all even numbers less than a million.
标签: mathematician Christian Goldbach Leonhard
上传时间: 2016-04-22
上传用户:wangchong
This little Program allows you to send commands to the CardReader (CT-BCS) or to the Card itself. First you will be ask to what Port the Reader is connected (0=COM1, 1=COM2). Then the Class-Byte (CLA), Instruction-Byte (INS), Parameter 1 (P1), Parameter 2 (P2). If wou don愒 want to send Parameter 3 (P3) press Ctrl-d (^d). If you enter a number then you Have to the Bytes of the Datafield. After the last Byte of the Datafield is entered the whole APDU is send the replay is displayed. After that you can send the next APDU.
标签: CardReader the commands to
上传时间: 2016-04-23
上传用户:nanxia
Microsoft .net IL 汇编语言程序设计指南. To tell the truth, I don t think I had much choice in this matter. Let me explain. With Microsoft .NET technology taking the world by storm, with more and more information professionals getting involved, large numbers of books covering various aspects of this technology Have started to arrive—and none too soon. Alas, virtually all of these books are dedicated to .NET-based programming in high-level languages and rapid application development (RAD) environments. No doubt this is extremely important, and I am sure all these books will Have to be reprinted to satisfy the demand. But what about the plumbing?
标签: Microsoft choice matter truth
上传时间: 2014-11-06
上传用户:二驱蚊器
/* * The internal form of a hash table. * * The table is an array indexed by the hash of the key collisions * are resolved by hanging a linked list of hash entries off each * element of the array. Although this is a really simple design it * isn t too bad given that pools Have a low allocation overhead. */ split from apache for general usage
上传时间: 2014-01-07
上传用户:gtf1207
Obtain the CDF plots of PAPR from an OFDM BPSK transmission specified per IEEE 802.11a specification Per the IEEE 802.11a specifications, we 52 Have used subcarriers. Given so, the theoretical maximum expected PAPR is 52 (around 17dB). However, thanks to the scrambler, all the subcarriers in an OFDM symbol being equally modulated is unlikely. Using a small script, the cumulative distribution of PAPR from each OFDM symbol, modulated by a random BPSK signal is obtained
标签: specification transmission specified Obtain
上传时间: 2016-04-24
上传用户:haoxiyizhong
PlotSphereIntensity(azimuth, elevation) PlotSphereIntensity(azimuth, elevation, intensity) h = PlotSphereIntensity(...) Plots the intensity (as color) of a number of points on a unit sphere. Input: azimuth (phi), in degrees elevation (theta), in degrees intensity (optional, if not provided, a green sphere is produced) All inputs must be vectors or matrices of the same size. Data does not Have to be evenly spaced. When there aren t enough points to draw a smooth sphere, additional points (with color) are interpolated. Output: h - a handle to the patch object The axes are also plotted: positive x axis is red positive y axis is green positive z axis is blue
标签: PlotSphereIntensity elevation azimuth intensity
上传时间: 2014-01-15
上传用户:ruan2570406
oJPEG2000中DWT的MATLAB实现n the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes Have a good time
标签: compression transform discrete MATLAB
上传时间: 2013-12-14
上传用户:luopoguixiong
This Java Chat, is purely AWT Based, No Swing Components used and still it has great look and feel. For this Application, I Have developed own Tab Control and Image Canvas.
标签: Components and purely Based
上传时间: 2013-12-10
上传用户:talenthn
The core of Java(TM) technology, the Java virtual machine is an abstract computing machine that enables the Java(TM) platform to host applications on any computer or operating system without rewriting or recompiling. Anyone interested in designing a language or writing a compiler for the Java virtual machine must Have an in-depth understanding of its binary class format and instruction set. If you are programming with the Java programming language, knowledge of the Java virtual machine will give you valuable insight into the Java platform s security capabilities and cross-platform portability. It will increase your understanding of the Java programming language, enabling you to improve the security and performance of your programs.
标签: machine Java technology computing
上传时间: 2016-05-03
上传用户:zhenyushaw
--- --- --- --- --- --- Visual Studio Project Renamer For Win9x/NT/2k By Niek Albers nieka@daansystems.com (C)2001 DaanSystems Homepage: http://www.daansystems.com ------------------------------------ Use with care and on your own risk! Make backups before you use this program. Do a rebuild all on your renamed project. Usage: vsrename <oldname> <newname> <dir> Where: oldname : The old name of your project (typically the xxx from xxx.dsw) newname : The new name for your project dir : The directory tree that holds the project. The program will replace all occurences of oldname to newname in all files and rename all filenames that Have the old name in it. It will walk subdirectories.
标签: Project Renamer Visual Studio
上传时间: 2013-12-15
上传用户:13517191407