Hmm. Try writing your expressions without using LaTeX, which seems to be on the fritz at the moment.

__________________
Adrian C. Keister
B.S. in Physics/Computers and Math, Grove City College (2001)
M.S. in Mathematical Physics, Virginia Tech (2004)
Ph.D. in Mathematical Physics, Virginia Tech (2007)

Tell me and I forget. Show me and I remember. Involve me and I understand. - Confucius