NAUI Dive table calaulations

[SamMan]

All,

I am new to diving and wanted to write a program that will print custom logbook pages and hold a history for my dives. I was looking over the NAUI dive table and did some research but cant seem to find exactly what formulas NAUI uses to calculate tables 1,2 and 3 on the table chart. Does anyone know where i can find the formulas so i can calculate based on my logbook entries to keep from having to input the whole NAUI table chart into a database?

Thanks so much in advance.

Shawn