TITLE: How do Mathematicians send email?
QUESTION [9 upvotes]: I've been corresponding with people about math via email. It seems very weird to just be sending PDFs of the conversation back and forth, but there's no way to talk without typesetting.
Is there an equivalent of MathJaX for email?

REPLY [12 votes]: I heartily recommend gmailtex. It's like mathjax for gmail. It installs as plugin to your browser. In any gmail account you have open, at a keystroke it processes all latex math environments and replaces them with either images or with HTML.
Sample screenshot: