„ 变换群 „ 变换群的定义 „ 变换群的实例 „ n元置换群 „ 置换的表示 „ 置换的乘法和求逆运算 „ 置换群中元素的阶与子群 „ 置换群的实例 „ 陪集及其性质 „ Lagrange定理 „ Lagrange定理的应用 „ 共轭关系与共轭类 „ 群的分类方程

锻炼学生的综合能力：资料查阅、知识综合应用、理论计算、设备选型、绘制图形、编写说明书。 培养工程观念：理论→小试→放大

Chapter Electronic Payment systems 10.1 Traditional Electronic Payment Systems for Electronic Commerce In electronic commerce, the challenges of payment transactions were initially underestimated Business via the internet and mobile telephony has so far been dominated by the methods of payment customary in traditional business. However, in light of technological progress

Chapter 12 Management of Electronic Commerce Security The business world has taken this to heart when it has come to the Internet. Companies have ventured onto the Information Superhighway in increasing numbers to \reduce distribution and marketing costs, eliminate the middleman, increase efficiency, promote impulse transactions and streamline distribution to far-flung locales\as well as to \connect directly with consumers at home, streamline operations and internal

Chapter 3 Technology of Electronic Commerce 3.1 A short history of the Internet and the web The Internet was the result of some visionary thinking by people in the early 1960s who saw great potential value in allowing computers to share information on research and development in scientific and military fields. J CR Licklider of MIT, first proposed a global network of computers in 1962, and moved over to the Defense Advanced Research Projects Agency(DARPA) in late 1962 to head the work to develop it Leonard Kleinrock of MIT and later UCLA developed

Chapter 5 Electronic commerce information's search and selection In physical markets, consumer search activities include reading advertisements, calling endors, and visiting stores. In a virtual marketplace, all these activities seem to converge into Web searches and Web browsing. Not surprisingly, search services are the first market infrastructure to be built in the electronic marketplace

Chapter 7 Internet marketing 7.1. Introduction of internet marketing 7.1.1 Internet marketing defined What is internet marketing? Internet marketing or internet-based marketing can be defined as the use of the Internet and related digital technologies to achieve marketing objectives and support the modern marketing concept. These technologies include the Internet media and other digital

Chapter 9 The principle of ebXML 9.1 The introduction of ebXML 9.1.1 What is ebXML? ebXML is a global electronic business standard that is sponsored by UN/CEFACT(United Nations Center For Trade Facilitation And Electronic Business)and OASIS(Organization for the Advancement of Structural Information Standards). ebXML thus defines a framework for global

9-1电子设计自动化软件工具概述 9-2 Pspice应用 9-3EWB使用简介 9-4max+plu开发工具介绍 9-5小结

§1 线性方程组的Gauss消元法 §2. 线性方程组解的结构 §3 解线性方程组的一个应用