Math, music, and fun

Some fun stuff here. I was playing with the excel spreadsheet that
plays fourier waves:

http://sunsite.univie.ac.at/musicfun

Greetings,

This appeared on another list and I send it along in hope it might be of interest/use:

http://www.freewebs.com/eriksikkema/index.htm

and

http://www.freewebs.com/eriksikkema/aboutulsi.htm

All best wishes,

Gordon Rumson