While we're providing easy ways to typeset unicode in different editors: for emacs there's `xah-math-input`:
<http://ergoemacs.org/emacs/xmsi-math-symbols-input.html> which simply allows to convert things like (from input left): +- ± alpha α ... Run by pressing Shift+Space when the cursor is after the input. Supports like 600 characters or so by default. Pretty seemless.
