99 Points of Intersection: Examples-Pictures-Proofs

Hans Walser,Jean Pedersen

99 Points of Intersection: Examples-Pictures-Proofs
Format
Hardback
Publisher
Mathematical Association of America
Country
United States
Published
14 September 2006
Pages
168
ISBN
9780883855539

99 Points of Intersection: Examples-Pictures-Proofs

Hans Walser,Jean Pedersen

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.

This item is not currently in-stock. It can be ordered online and is expected to ship in approx 4 weeks

Our stock data is updated periodically, and availability may change throughout the day for in-demand items. Please call the relevant shop for the most current stock information. Prices are subject to change without notice.

Sign in or become a Readings Member to add this title to a wishlist.