Taxicab Geometry: An Adventure in Non-Euclidean Geometry
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About this ebook
This entertaining, stimulating textbook offers anyone familiar with Euclidean geometry — undergraduate math students, advanced high school students, and puzzle fans of any age — an opportunity to explore taxicab geometry, a simple, non-Euclidean system that helps put Euclidean geometry in sharper perspective.
In taxicab geometry, the shortest distance between two points is not a straight line. Distance is not measured as the crow flies, but as a taxicab travels the "grid" of the city street, from block to block, vertically and horizontally, until the destination is reached. Because of this non-Euclidean method of measuring distance, some familiar geometric figures are transmitted: for example, circles become squares.
However, taxicab geometry has important practical applications. As Professor Krause points out, "While Euclidean geometry appears to be a good model of the 'natural' world, taxicab geometry is a better model of the artificial urban world that man has built."
As a result, the book is replete with practical applications of this non-Euclidean system to urban geometry and urban planning — from deciding the optimum location for a factory or a phone booth, to determining the most efficient routes for a mass transit system.
The underlying emphasis throughout this unique, challenging textbook is on how mathematicians think, and how they apply an apparently theoretical system to the solution of real-world problems.
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Taxicab Geometry - Eugene F. Krause
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See every Dover book in print at
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Copyright © 1975, 1986 by Eugene F. Krause.
All rights reserved.
This Dover edition, first published in 1986, is an unabridged and corrected republication of Taxicab Geometry, published by Addison-Wesley Publishing Company, Menlo Park, California, in 1975.
Library of Congress Cataloging-in-Publication Data
Krause, Eugene F., 1937–
Taxicab Geometry.
Includes index.
Summary: Develops a simple non-Euclidean geometry and explores some of its practical applications through graphs, research problems, and exercises. Includes selected answers.
1. Geometry, Non-Euclidean—Juvenile literature. [1. Geometry, Non-Euclidean] I. Title.
QA685.K7 1986 516.9
86-13480
9780486136066
Manufactured in the United States by Courier Corporation
25202711
www.doverpublications.com
about this book
This book has a triple purpose: to develop a