An introduction to programming

This chapter is an introduction to the application layer. In the next eight chapters we introduce common client-server applications used in the Internet. In this chapter, we give a general picture of how a client-server program is designed and give some simple codes of their implementation. The area of network programming is a very vast and complicated one; it cannot be covered in one chapter. We need to give a bird’s-eye view of this discipline to make the contents of the next eight chapters easier to understand.

20p tangtuy09 26-04-2016 56 4   Download

We develop an analogue for sphere packing of the linear programming bounds for error-correcting codes, and use it to prove upper bounds for the density of sphere packings, which are the best bounds known at least for dimensions 4 through 36. We conjecture that our approach can be used to solve the sphere packing problem in dimensions 8 and 24. Contents 1. Introduction 2. Lattices, Fourier transforms, and Poisson summation 3. Principal theorems 4. Homogeneous spaces 5. Conditions for a sharp bound 6. Stationary points 7. Numerical results 8. Uniqueness Appendix A. ...

27p tuanloccuoi 04-01-2013 50 6   Download

An object-oriented programming language developed by Sun Microsystems Also a platform to support Java applications (technology) A little bit history 1991: A team led by James Gosling at Sun Microsystems developed Oak, for use in embedded consumer electronic appliances 1995: renamed Java -redesigned for developing Internet applications (Java 1.0 1.1). 1998: Sun announced the Java 2 platform (1.2,1.3,1.4) 2005 -Now: Java 5 (Java 1.5 -newest version 1.7)

20p lebronjamesuit 23-08-2012 88 5   Download

Welcome back for the second installment in this series. This installment serves as an introduction to the world of convolution filters. It is also the first version of our program that offers one level of undo. We'll build on that later, but for now I thought it mandatory that you be able to undo your experiments without having to reload the image every time.

12p mr_nghia88 06-03-2010 125 3   Download