Product Description: With the advent of computer programs such as SketchPad, many high school students and amateur mathematicians are rediscovering interesting facts and theorems about triangles. The authors have created a nearly encyclopedoc collection of known and not so known aspects of the subject and present them in a beautifully illustrated triangular volum...read more

Product Description: John Horton Conway's unique approach to quadratic forms was the subject of the Hedrick Lectures given by him in August of 1991 at the Joint Meetings of the Mathematical Association of America and the American Mathematical Society in Orono, Mane...read more

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The third edition of this definitive and popular book continues to pursue the question: what is the most efficient way to pack a large number of equal spheres in n-dimensional Euclidean space? The authors also examine such related issues as the kissing number problem, the covering problem, the quantizing problem, and the classification of lattices and quadratic forms. There is also a description of the applications of these questions to other areas of mathematics and science such as number theory, coding theory, group theory, analogue-to-digital conversion and data compression, n-dimensional crystallography, dual theory and superstring theory in physics. New and of special interest is a report on some recent developments in the field, and an updated and enlarged supplementary bibliography with over 800 items. (view table of contents)

Explores number theory and patterns that emerge in arithmetic, algebra, and geometry