Böcker av Gary Gordon

A mathematical exploration of the popular card game SETHave you ever played the addictive card game SET? Have you ever wondered about the connections between games and mathematics? If the answer to either question is "e;yes,"e; then The Joy of SET is the book for you! The Joy of SET takes readers on a fascinating journey into this seemingly simple card game and reveals its surprisingly deep and diverse mathematical dimensions. Absolutely no mathematical background is necessary to enjoy this book-all you need is a sense of curiosity and adventure!Originally invented in 1974 by Marsha Falco and officially released in 1991, SET has gained a widespread, loyal following. SET's eighty-one cards consist of one, two, or three symbols of different shapes (diamond, oval, squiggle), shadings (solid, striped, open), and colors (green, purple, red). In order to win, players must identify "e;sets"e; of three cards for which each characteristic is the same-or different-on all the cards. SET's strategic and unique design opens connections to a plethora of mathematical disciplines, including geometry, modular arithmetic, combinatorics, probability, linear algebra, and computer simulations. The Joy of SET looks at these areas as well as avenues for further mathematical exploration. As the authors show, the relationship between SET and mathematics runs in both directions-playing this game has generated new mathematics, and the math has led to new questions about the game itself.The first book devoted to the mathematics of one of today's most popular card games, The Joy of SET will entertain and enlighten the game enthusiast in all of us.

Everyone knows the economy affects our investments. But which economic trends discussed by TV pundits and money gurus really matter—and which ones can we safely ignore?  In Debt Cycle Investing, Gary Gordon explains the little-understood economic indicator that plays a crucial role in driving financial markets. Using vivid, simply-explained graphs, he shows how investors can read market trends and make smarter choices about where to put their money.  Along the way, he’ll equip you to separate popular myths, fads, and fallacies from realities, helping you avoid falling prey to the flawed thinking that leads so many investors astray."Wonderful cogent analysis. Terrific book!"--Karen Zimmerman, former trading executive, Credit Suisse"An essential guide to contemporary investment thinking--very readable, with a touch of humor."--Larry Jeydel, former CEO, Almo Corporation"As a long-time Wall Streeter, I didn't think I could learn anything from a how-to-invest book. I was wrong!"--Barbara Steiner, founding partner, institutional research firm Portales Partners"Original, well-argued, and meticulously supported--an important contribution to the literature on investing that all investors should read."--John Cecil, chairman, Eagle Knolls Capital"Helps us understand complex economic and market concepts in a straightforward manner with humor."--Steve Shapiro, former principal, Concordia Capital Partners"I've rarely seen information so convincingly presented--and so logically.  Valuable and entertaining!"--Steve Rosenblatt, former IBM executive 

Facing greater challenges from increased expectations and global competition, America's public schools can pass the test by thinking and acting differently about selecting teachers and principals, nurturing the talents of students and teachers, and the importance of community involvement.

This revised edition of the successful primer thoroughly covers fundamentals of lighting design, and also serves as a handy reference for professional designers. The Fifth Edition is more comprehensive than ever, with new information on LED, energy efficiency, and other current issues.