To help contributors who want to include formulae in their posts I've installed a program called 'mimetex' which takes LaTeX formatted text and produces a gif image. It works like this:
[ img]/cgi-bin/mimetex.cgi?f(x)=\int_{-\infty}^xe^{-t^2}dt [/ img]which without the tag spaces gives:
Please test it out using the post preview. See here
http://www.forkosh.com/mimetex.htmlMatt