Mathematics magazine

• 

  Año 2004, Vol. 77, Número 3

  • Falling down a Hole through the Earth

    Andrew J. Simoson

    págs. 171-189

    

  • Proof Without Words: Eeuler's Arctangent Identity

    Rex H. Wu

    pág. 189

    

  • Upper Bounds on the Sum of Principal Divisors of an Integer

    Roger B. Eggleton, William P. Galvin

    págs. 190-200

    

  • Proof Without Words: Every Octagonal Number Is the Difference of Two Squares

    Roger B. Nelsen

    pág. 200

    

  • Centroids Constructed Graphically

    Mamikon A. Mnatsakanian, Tom M. Apóstol

    págs. 201-210

    

  • There Are Only Nine Finite Groups of Fractional Linear Transformations with Integer Coefficients

    Gregory P. Dresden

    págs. 211-218

    

  • Path Representation of One-Dimensional Random Walks

    Oscar Bolina

    págs. 218-225

    

  • Why Some Elementary Functions Are Not Rational

    José Carlos Santos, Gabriela Chaves

    págs. 225-226

    

  • Another Look at Sylow's Third Theorem

    Eugene Spiegel

    págs. 227-232

    

  • PROBLEMS

    Elgin H. Johnston

    págs. 233-239

    

  • REVIEWS

    Paul J. Campbell

    págs. 240-241

    

  • 44th International Mathematical Olympiad

    págs. 242-246