In our blog, you can use TeX (on any page, post, or comment) by including the codeword latexpage in square bracket somewhere near the top. Then use regular TeX code. Our blog has installed a “plug-in” called QuickLaTex to make it all work. Try it!!
Here is a link to a pdf of TeX code (Samantha Youmans told Math Seminar about it):
An in-line example will look like . Or you can have it displayed in its own line: