Richard Guy - Böcker

Mathematics is kept alive by the appearance of new unsolved problems, problems posed from within mathematics itself, and also from the increasing number of disciplines where mathematics is applied. This book provides a steady supply of easily understood, if not easily solved, problems which can be considered in varying depths by mathematicians at all levels of mathematical maturity.For this new edition, the author has included new problems on symmetric and asymmetric primes, sums of higher powers, Diophantine m-tuples, and Conway's RATS and palindromes. The author has also included a useful new feature at the end of several of the sections: lists of references to OEIS, Neil Sloane's Online Encyclopedia of Integer Sequences.About the first Edition:"...many talented young mathematicians will write their first papers starting out from problems found in this book." András Sárközi, MathSciNet

Journey through the world of numbers with the foremost authorities and writers in the field. John Horton Conway and Richard K. Guy are two of the most accomplished, creative, and engaging number theorists any mathematically minded reader could hope to encounter. In this book, Conway and Guy lead the reader on an imaginative, often astonishing tour of the landscape of numbers. The Book of Numbers is just that - an engagingly written, heavily illustrated introduction to the fascinating, sometimes surprising properties of numbers and number patterns. The book opens up a world of topics, theories, and applications, exploring intriguing aspects of real numbers, systems, arrays and sequences, and much more. Readers will be able to use figures to figure out figures, rub elbows with famous families of numbers, prove the primacy of primes, fathom the fruitfulness of fractions, imagine imaginary numbers, investigate the infinite and infinitesimal and more.

Using a case-based approach, Colorectal Surgery: Clinical Care and Management provides practical, clinical and expert guidance to illustrate the best care and clinical management of patients requiring colorectal surgery for colorectal disease.Real-life cases illustrate the entire syllabus of GI/colorectal surgery, being specially selected to highlight topical or controversial aspects of colorectal care.  Cases have a consistent approach throughout and as well as outlining the actual management of each individual case, also offer an honest appraisal of the chosen management route, its successes and areas that could have been managed differently.   Pedagogic features such as learning and decision points boxes aid rapid understanding/learning, enabling the reader to improve their patient management.In full colour and containing over 100 outstanding clinical photos and slides to support the cases, each section also covers recent developments/ landmark papers/ scoring systems and a thorough discussion of clinical management based on the major society guidelines from NICE, ASCRS and ECCO. Reliable, well-written and perfect for consultation in the clinical setting,  Colorectal Surgery: Modern Clinical Care and Management is the perfect tool for all members of the multi-disciplinary team managing patients suffering from colorectal disease, specifically GI surgeons, gastroenterologists, oncologists and general surgeons.

Second edition sold 2241 copies in N.A. and 1600 ROW. New edition contains 50 percent new material.

Journey through the world of numbers with the foremost authorities and writers in the field. John Horton Conway and Richard K. Guy are two of the most accomplished, creative, and engaging number theorists any mathematically minded reader could hope to encounter. In this book, Conway and Guy lead the reader on an imaginative, often astonishing tour of the landscape of numbers. The Book of Numbers is just that - an engagingly written, heavily illustrated introduction to the fascinating, sometimes surprising properties of numbers and number patterns. The book opens up a world of topics, theories, and applications, exploring intriguing aspects of real numbers, systems, arrays and sequences, and much more. Readers will be able to use figures to figure out figures, rub elbows with famous families of numbers, prove the primacy of primes, fathom the fruitfulness of fractions, imagine imaginary numbers, investigate the infinite and infinitesimal and more.