CGAL users discussion list

I am implementing an event-based algorithm, which has to be very robust in 
order to wprk properly. Unfortunately, I can't use rational numbers, and so I 
tried to apply CORE::expr types (I need closure for the usual arithmetics and 
square root). 

However, when I try to compare two CORE::expr numbers which are very close, 
but that were calculated different, the comparison takes an unproportionate 
amount of times (sometimes severel minutes), and smetimes it just gets 
stuck.. am I doing something wrong? (or is there a more prefered number type?)

Amir.