ISBN-13: 9780883858295 / Angielski / Twarda / 2009 / 220 str.
Mathematicians beginner, amateur, and professional alike thrill to find simple, elegant solutions to seemingly difficult problems. Such happy resolutions are called aha solutions, a phrase popularized by mathematics and science writer Martin Gardner. Aha solutions reveal the beauty of mathematics. This book is a collection of problems with aha solutions.