# What'sthedifferencebetween$$$$and?[duplicate]

This question already has an answer here:

I don't know the difference between $$...$$ and $$...$$. What's the difference between $$...$$ and $$...$$? \begin{equation*}...\end{equation*}?

## marked as duplicate by mafp, bloodworks, T. Verron, Thorsten, Claudio FiandrinoApr 27 '13 at 7:42

• $$...$$ is a delimiter for a numbered display equation. It should no longer be used. The recommended equivalent for this is $$...$$.
• $...$ is a delimiter for a non-numbered display equation. It is the short version of the \begin{equation*} ... \end{equation*}.
• Mico's (earlier posted) answer ( tex.stackexchange.com/a/40531/78134 ) to a related question is a little more detailed, and -- importantly -- suggests that this answer here might even be wrong in some important ways (not least that  does not give a numbered equation) – owjburnham Dec 28 '18 at 11:01