From http://sbseminar.wordpress.com/2009/10/14/math-overflow/ http://sbseminar.wordpress.com/2009/10/14/math-overflow/ : > There’s currently no LaTeX support.

From http://sbseminar.wordpress.com/2009/10/14/math-overflow/ http://sbseminar.wordpress.com/2009/10/14/math-overflow/ : > There’s currently no LaTeX support. Obviously, this is the top-priority feature. This definitely won’t be implemented until the Stack Exchange software is out of beta, but it will probably be implemented shortly thereafter. In the meantime, do your best. You’re welcome to type raw LaTeX, use basic html (e.g. Ω and x₁), or whatever you would normally write in email.