Whoa, when did this happen? As far as I'm seeing, all of the Expertise reductions are rounded to the nearest Integer, as I'm testing it right now. Who sent this information in and had Tarrant Rahl change it?The Expertise stat page has been updated. Previously the data and graph were formatted to round the energy cost to the nearest whole number, however that was misleading as Guild Wars does handle fractions of energy points. The data table and graph now properly represent the energy costs to a single decimal place.
EDIT: I ran a FRAPS movie and looked at different Expertise points frame-by-frame. It still looks like nearest integer to me rather than decimal. I'd like someone else to verify this?