stored mathematical procedures?

[Marc Antony Vose]

hey there...

does mysql have a way of storing often used mathematical procedures 
so i could do something like...

select era from stats

instead of always having to do:

select ((earned_runs * 9)/innings_pitched) as era from stats

cheers,

Marc Antony Vose
http://www.suzerain.com/

Poetry atrophies when it gets too far from music.
-- Ezra Pound