rounding numbers

From: Jochen Opp (jo2_at_kent.ac.uk)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 09:23:04 -0000

hi,

does anyone know how i could round something like 0.3333333
to 0.335, somehow stating that i want 3 fraction digits and that
it should round to 0.335 and not 0.330, or 0.34 ?

thanks
Jochen