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Joseph S. Madachy. Very Good. 8vo-over 7¾"-9¾" tall. Light Creasing on Front, Rear Covers; Front, Rear Covers, Spine Lightly Chipped; Spine Slightly Cocked; Edges Lightly Soiled. BOOK NUMBER: 23762-1. ALSO KNOWN AS: This Dover edition, first published in 1979, is an unabridged republication of the work originally published by Charles Scribner's Sons, New York, in 1966 under the title Mathematics on Vacation. The author has made corrections and written a new preface for this edition. COVER DESIGN BY: Paul E. Kennedy. CONTENTS: 1 Geometric Dissections 2 Chessboard Placement Problems 3 Fun with Paper 4 Magic and Antimagic Squares 5 Puzzles and Problems 6 Number Recreations 7 Alphametics 8 Conglomerate; Glossary; Bibliography; Index. SYNOPSIS: Benjamin Franklin once wrote that "it was perhaps a mark of the good sense of our mathematicians that they would not spend their time in things that were merely difficiles nugae, incapable of any useful application." He then confessed to having composed magic squares himself as a youth, declaring one square "the most magically magical of any magic square ever made by any magician." The Franklin magic square is just one of the fascinating oddities featured in this new collection of mathematical amusements. Joseph S. Madachy is well known to puzzlists as past editor of the Journal of Recreational Mathematics and founder-editor of Recreational Mathematics Magazine, as well as author of Mathematical Diversion, also published by Dover. This revised and corrected edition presents material from Recreational Mathematics Magazine (now out of print) along with original and updated problems and discussions. But there is more here than just numbers. Discover the delights of flexagons, talisman squares, geometric dissections, and lost chords. Tease the brain with a section of old-fashioned problems (with solutions) and a chapter of miscellany, with dominoes, billiard balls, and a new form of ticktacktoe. In short, if a problem a) is mathematical or logical and b) is fun, and c) appears to be quite useless, then the probabilities are that it is in this book. Joseph S. Madachy's interest in recreational mathematics dates from his high school years. Although trained in chemistry, in which he holds the B.S. and M.S. degrees from Western Reserve University, he taught algebra and physical science, as well as chemistry, at Cathedral Latin High School in Ohio and was an Instructor in Trigonometry at Western Reserve University. He has been a research chemist and is a technical editor for Monsanto Research Corporation. He was the editor of the Journal of Recreational Mathematics for eight years. He is the co-author, with J. A. H. Hunter, of another book, Mathematical Diversions, also available as a Dover Publications reprint.
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