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

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 begin{equation} ... .
• $...$ is a delimiter for a non-numbered display equation. It is the short version of the begin{equation*} ... \end{equation*}.