I'm coding QS, everything else is done, except for choosing the proper smoothness bound B.

B = exp((1/2 + o(1))(log n log log n)^(1/2))

page 8,

http://www.math.leidenuniv.nl/~reinier/ant/sieving.pdf
I do not understand the little o notation. What do I substitute for o(1) to calculate for B?