By looking at the posts on Mathematics Stack Exchange I have figured out how to produce an inset of math equations, like this:

$S=\{1,2,3\ldots \text{ n for }n\in \mathbb{N}\}\\ Y_{i,j}=\{i|i\in \mathbb{N}\land j|j\in \mathbb{N}\}$

The result that you see, a light grey box to the left of inset equations, is begun by putting a > just before the $ and concluding with an extra return at the end. I have searched the internet the world over and failed to find this feature documented. Can someone please point me to some documentation? If this is a LaTeX feature, I can't find that either.

  • 1
    $\begingroup$ It is documented in the help pages. $\endgroup$
    – Xander Henderson Mod
    Commented Feb 10, 2021 at 17:39
  • $\begingroup$ Perhaps the title should ask "How" rather than "Why"? $\endgroup$
    – hardmath
    Commented Feb 10, 2021 at 18:33

1 Answer 1


This isn't part of MathJax or LaTeX; it's part of Markdown, which is the Stack Exchange way of formatting posts in general (e.g. italicizing the name Markdown, or making formatted links).

What you stumbled upon is the blockquote; the linked Help Center article contains almost all other options available to you.


You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .