Through its engaging and unusual problems, this book demonstrates methods of reasoning necessary for learning number theory. Every technique is followed by prob
This is a book about prime numbers, congruences, secret messages, and elliptic curves that you can read cover to cover. It grew out of undergr- uate courses tha
A unique collection of competition problems from over twenty major national and international mathematical competitions for high school students. Written for tr
This book, written by an accomplished female mathematician, is the second to explore nonstandard mathematical problems – those that are not directly solved by