99 Points of Intersection by Hans Walser
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99 Points of Intersection
By Hans Walser

99 Points of Intersection

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By (author) See other recent books by Hans Walser See other recent books by Jean Pedersen
Translated by Peter Hilton See other recent books by Peter Hilton
Format: Hardback

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99 Points of Intersection by Hans Walser

Book Description

The 99 points of intersection presented here were collected during a year-long search for surprising concurrence of lines. For each example we find compelling evidence for the sometimes startling fact that in a geometric figure three straight lines, or sometimes circles, pass through one and the same point. Of course, we are familiar with some examples of this from basic elementary geometry - the intersection of medians, altitudes, angle bisectors, and perpendicular bisectors of sides of a triangle. Here there are many more examples - some for figures other than triangles, some where even more than three straight lines pass through a common point. The main part of the book presents 99 points of intersection purely visually, developed in a sequence of figures. In addition the book contains general thoughts on and examples of the points of intersection, as well as some typical methods of proving their existence.

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Book Details

ISBN: 9780883855539
ISBN-10: 0883855534
Format: Hardback
(228mm x 152mm x 13mm)
Pages: 168
Imprint: Mathematical Association of America
Publisher: Mathematical Association of America
Publish Date: 14-Sep-2006
Country of Publication: United States

Books By Author Hans Walser

Golden Section by Hans Walser Golden Section, Paperback (September 2001)

This book describes examples of the Golden Section, and shows some paths to further developments.

Symmetry by Hans Walser Symmetry, Paperback (March 2001)

An examination of symmetry for the interested layman.

» View all books by Hans Walser

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Author Biography - Hans Walser

Hans Walser is lecturer at the Swiss Federal Instititute of Technology and the University of Basel.

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