fyi,
Alain

http://en.wikipedia.org/wiki/Genetic_programming
http://en.wikipedia.org/wiki/John_R._Koza
http://www.geneticprogramming.com/Tutorial/index.html
http://www.genetic-programming.com/johnkoza.html

and of course more to find using your favorite search engine...

"David Hilberg" wrote in message
ups.com...
What an interesting project!

Just for the record:

"In Excel 2007, a formula can contain up to 64 levels of nesting, but
in earlier versions of Excel, the maximum levels of nesting is only
7." [Microsoft Office Online]

- David Hilberg (currently using xl2003)