Could you install the Math extension on the wiki? Also see Enabling TeX. This will help in writing formulas for the more mathematical entries (specifically, computational models of neurons).
Should be working now. Give it a try.
Nope, doesn’t seem to work. If you put something like \vec{y} in a page, you should see it turn into a y with an arrow above. I added that to the User:192.168.3.254 page, and got this as a result:
Failed to parse (PNG conversion failed; check for correct installation of latex and dvipng (or dvips + gs + convert)): \vec{y}
Okay, I installed the packages you mentioned. The example you described appears to be working. Let me know if it’s still giving you issues.
Works perfectly now, thanks!