How to trim values?

Hi,

I'm trying to figure out how to take a value like 3.68009074974387
(that is calculated from values in my database) and have PostgreSQL
hand me 3.68.  Any suggestions would be appreciated.

Thanks,
Jamu.

-- 
Jamu Kakar (Developer)            Expressus Design Studio, Inc.
jkakar@expressus.com            708-1641 Lonsdale Avenue
V: (604) 903-6999            North Vancouver, BC, V7M 2J5