Mathematics Seminar documents

This page contains links to documents that were used in mathematics seminar presentations (as well as other presentations by mathematics faculty). Some of these items have instructions included so that you can experiment with them on your own; others were used for demonstration purposes and may not be understandable to someone who did not attend that particular presentation. Also note that large files (over 100K) have size indicated in brackets.

K E Y			An Excel spreadsheet. Note that some spreadsheets contain macros, which may prompt a warning from Excel or virus protection software.
			A Mathematica notebook. Many of these are designed to produce graphs, but all graphs have been removed from these notebooks to conserve space.
			A Microsoft Word document.
			A Microsoft PowerPoint document.
			A QuickTime movie.
			A PDF file.

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Date	Topic Presenter	Documents

02/19/2002	Tiling Square Rooms with Equal Stacks, or Solutions to x² – ny = 1 Don Hooley	PowerPoint presentation Excel spreadsheet to solve the equation
12/11/2001	This talk was also given at the San Diego Joint MAA/AMS meetings, January 6, 2002.
	Reflecting Walls for Bouncing Balls Darryl Nester	How to make a "reflecting" wall Pictures of "reflecting walls" (some updates pending) Reflecting wall page at www.2dcurves.com
12/4/2001	This talk was also given at the San Diego Joint MAA/AMS meetings, January 6, 2002.
	An Elementary Diversity Index Developed Using Taylor Series Donald Hooley	Powerpoint presentation Presentation outline (the text of the slides, in a Word "rich text" file) The PowerPoint presentation saved as a web page
11/13/2001	Simulating Probabilities with Excel and Visual Basic Darryl Nester	Probability simulations worksheet
11/27/2001	On Triangles, Spheres, and "How big is South America?" Steve Harnish	Spreadsheet for computing areas of spherical triangles Spherical triangles Mathematica notebook Web site for calculating surface distance between two points of latitude and longitude Web site showing changes in the surface area of the Great Salt Lake of Utah
10/23/2001	Surviving a (Trig) Identity Crisis Darryl Nester	Presentation web page
10/16/2001	How Can I Make This Line Shorter? Donald Hooley	Traffic flow information at the Science Hobbyist web site (www.amasci.com). Simple traffic flow simulations Simulating queue length with one server.
9/18/2001	Mathematics Learned (or Recalled) While Working on my House Darryl Nester	Presentation web page
6/23/2001	String Art FOR JUNE 23 DISCOVERY DAY	String art notebook
3/23/2001 (MAA meeting)	Bouncing a ball on a slanted wall Darryl Nester/ Steve Harnish	Plotting the ball's path (updated 4/9/2001) Pictures of ball paths (added 4/9/2001) Links regarding reflecting walls have been moved here
3/16/2001 (Friday Colloquium)	On Creating Mathematics: What Arthur (Cayley) and Blaise (Pascal) never knew Steve Harnish	PowerPoint presentation [2350K]
2/15/2001	Beetles on Triangles Darryl Nester	Animated GIF files showing the location of the CCW beetle center (updated 4/10/2001) The location of the CCW beetle center, as one side of a triangle grows, when the adjacent side and included angle remain fixed. BeetleTracks.nb notebook (added 4/10/2001) www.2dcurves.com, an online collection maintained by Jan Wassenaar from the Netherlands. Here are his sections dealing with general pursuit curves and the related topic of logarithmic spirals.
2/8/2001	Stereograms Stephen Harnish	Random Dot Stereograms: The Geometry behind the "Magic Eye" pictures [552K]
1/25/2001	String Art Darryl Nester	String art spreadsheet [136K] String art notebook (modified 6/22/2001) 3D string art notebook
11/30/2000	Cellular automata Jon Curtis	Cellular automata notebook
11/9/2000	The Gini index George Lehman	Using the Gini index Gini database (all countries) [709K] Notes about the database
10/19&26/2000	Random Walks Darryl Nester	simple random walks reinforced random walks simple random walks
10/5/2000	Error-correcting codes Stephen Harnish	Error-correcting codes
9/28/2000	"Dueling Actuaries" Darryl Nester	"Dueling Actuaries" simulation
9/14/2000	Creating QuickTime movies Stephen Harnish	Inverse reduction (1) Inverse reduction (2) Two standard reductions [563K] Two inverse reductions [2032K]

(More to come!)