how many Minor Psychic Powers do they get

By Mattman375, in Dark Heresy Rules Questions

This one is bugging me and i not sure what way round it works. when the book says they get equals to one-half your willpower bouns (round up). Does this mean someone with a WP 40 will get 2 or 6?

2. though with such a low willpower, id invest in an advance or two as well!

One Half = 1x 1/2 <--- (this is what you get in Minor Powers)

One and a Half = 1 + 1/2