Welcome to Al Lehnen's Web Site

I am a mathematics instructor at Madison Area Technical College in Madison, Wisconsin USA. My address is 3550 Anderson Street ; Madison, WI 53704-2599 ; Phone (608) 246-6567 ; Email alehnen@matcmadison.edu or aplehnen@execpc.com

The graphic above was generated as a parametric surface using the Java Program CalcPlot3D, authored by Professor Paul Seeburger of  Monroe Community College in Brighton, New York.


Biographical Information


Spring 2012 

Schedule of classes