精彩内容 The Adapter's WordsWritten by Prof. Kenneth H. Rosen, the original book of Discrete Mathematics and its Applications is an excellent textbook and is widely used around the world. The book gives a focused introduction to the primary themes of the Discrete Mathematics course and demonstrates its practicality and relevance to real-world applications with a wide variety of examples. All the topics, examples, references and exercises are quite helpful to the students. The book is now in its eighth edition. In each edition, the author carefully revised the organization and arrangement of the content and added many new applications.Many colleges and universities in China use this book as a textbook. The original edition of the book is too thick for some Chinese students to use. In order to introduce this excellent textbook to more Chinese students, we once again compress this book into a concise version.As in previous editions, we retain logic and proof, basic structures, counting and advanced counting techniques, relations, graphs, trees and Boolean algebras. Since Chapter 3, 4, 5, 7 and 13 of the original book are to be taught in other courses in general Chinese curriculum, we delete these contents in the compressed version.There are over 4200 exercises in the original textbook with questions of different difficulties. Some of the questions are designed for basic skill development, some are in intermediate level and some are more difficult and challenging. In order to keep the original profile of the book, we removed the even-number questions while retained the odd-number questions at the end of each section. End-of-Chapter Material, including key terms and results, review questions, supplementary exercises, computer projects, computations and explorations, and writing projects, are retained and put online (www.hzbook.com) in the revision.The historical information for the background of many topics is also removed in order to reduce the length of the concise version.We tried to retain the essence of the original book and conform to the requirements of the syllabus of the Discrete Mathematics course for undergraduate students in the compressed version. We are sorry that some of our work might be inappropriate, or we might have deleted a few relevant contents from the original book, which may result in certain reading obstacles. If you have any comments and suggestions, please let us know, and your advices will be highly appreciated.We would like to thank Prof. Kenneth H. Rosen, the author of the original book, and McGraw-Hill, the original publisher, who authorized us to compress the original book. It is their understanding and generosity that makes it possible for more Chinese students to enjoy this distinguished book. We would also like to thank the staff at China Machine Press for their valuable work to the book, and thank the readers and colleagues who have given valuable comments to the work. Adapter South China University of Technology csqchen@scut.edu.cnOctober 2019
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