Colm Mulcahy's recent papers

Recent refereed Papers:

``Fitch Cheney's Five Card Trick,'' Math Horizons, MAA, Feb 2003.

(with Tom Sederberg & John H. Conway) Solution to "Tan Line Lofts Curve--Ouch!" puzzle, Math Horizons, MAA November 2002, page ?.

(with Tom Sederberg & John H. Conway) ``Tan Line Lofts Curve--Ouch!" puzzle, Math Horizons, MAA, April 2002, page 35. Click here for more information.

``All You Need Is Cards'' was published in January 2002 in A Puzzlers' Tribute - A Feast for the Mind (A.K. Peters), pages 179-190, a tribute to Martin Gardner. See Mathematical Card Tricks for more information.

(with John Rossi) A Fresh Approach to the Singular Value Decomposition, College Mathematics Journal, 29, 3, May 1998, 199--207. Based on Singular Value Decomposition Made Easy (140K, uncompressed postscript), a talk given at ICTCM in Reno, Nevada, November 1996, and at MAA regional meeting in Atlanta, March 1997. You'll also need a single picture (24K, uncompressed postscript) that goes with it. This material grew out of an ATLAST Linear Algebra workshop in Seattle in August 1996. See Linear Algebra for further information.

Image Compression Using The Haar Wavelet Transform (select uncompressed postscript or uncompressed PDF), Spelman College Science & Mathematics Journal, Vol 1, No 1, April 1997, 22-31 (see here also)

Plotting and Scheming with Wavelets (select uncompressed postscript or uncompressed PDF), Mathematics Magazine (Vol 69, No 5, December 1996, 323-343), a publication of the Mathematical Association of America. Note: The above files incorporate some minor corrections to the published MAA version; see the Errata page for details. "Plotting and Scheming with Wavelets" was awarded a 1996 Carl B. Allendoerfer Award (for articles of expository excellence) by the MAA at MathFest '97 in Atlanta, August 1997. See Wavelets for further information on wavelets.

"The Basic Curves and Surfaces of Computer Aided Geometric Design" (select uncompressed postscript or uncompressed PDF), Special Engineering Issue of Maple Tech, Vol 3, No 1, April 1996, 65-73, published by Birkhäuser/Springer. See CAGD for further information.

Works in progress:

A Down to Earth Look at Pythagoras' Theorem (Considers the celebrated Pythagoras' Theorem on the surface of a sphere, such as the one most of us live on.) See Geometry for further information.

Older refereed papers:

Click here.