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99 Points of Intersection: Examples-Pictures-Proofs
Contributor(s): Walser, Hans (Author), Hilton, Peter (Translator), Pedersen, Jean (Author)

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ISBN: 0883855534     ISBN-13: 9780883855539
Publisher: Mathematical Association of America (MAA)
OUR PRICE: $49.40  

Binding Type: Hardcover
Published: September 2006
* Out of Print *

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Additional Information
BISAC Categories:
- Mathematics | Applied
- Mathematics | Topology - General
Dewey: 514
LCCN: 2006924620
Series: Spectrum
Physical Information: 168 pages
Features: Bibliography, Illustrated, Index
Review Citations: Scitech Book News 09/01/2006 pg. 40
Science Books & Films 11/01/2006 pg. 253
Science Books & Films 07/01/2008 pg. 145
 
Descriptions, Reviews, Etc.
Publisher 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.

Contributor Bio(s): Walser, Hans: - Hans Walser is lecturer at the Swiss Federal Instititute of Technology and the University of Basel.
 
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