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Mathematics Magazine - February 1998

ARTICLES

A Surprising but Easily Proved Geometric Decomposition Theorem
by Victor Klee and John R. Reay

Fractal Tilings in the Plane
by Richard Darst, Judith Palagallo, and Thomas Price

Computing Eigenvalues and Eigenvectors Without Determinants
by William A. McWorter, Jr., and Leroy F. Meyers

Variations on a Theme of Newton
by Robert M. Corless

NOTES

Differentiating Among Infinite Series
by Rick Kreminski

Uniqueness of the Decomposition of Finite Abelian Groups: A Simple Proof
by F. S. Cater

Swapping Hats: A Generalization of Montmort's Problem
by Gabriela R. Sanchis

What Can Be Learned From nn!?
by Andrew Lenard

Math Bite: Why 2 + 2 Equals 2 x 2
by Rick Norwood

When is (xy + 1) (yz + 1) (zx + 1) a Square?
by Kirin S. Kedlaya

Proof Without Words: A Generalization from Pythagoras
by Da vid S. Wise

Proof Without Words: Sums of Integers as Sums Of Cubes
by Roger B. Nelsen

PROBLEMS

Proposals 1539-1543

Quickies 874-876

Solutions 1514-1518

Answers 874-876

REVIEWS

NEWS AND LETTERS

Guidelines for Authors

Dummy View - NOT TO BE DELETED