Hello,
I was invited by Arjen Markus to submit my code for a lognormal income distribution library. Thanks for asking! I'm uploading a copy of the source (released under a BSD license or whatever will make it compatible with tcllib).
In the zip file I'm also including: a non-groffed man page (plain ascii), a test suite (comparing results to results obtained from Excel), and an example application file.
Eric
Source + documentation + test suite + examples