# How do I number the equations locally?

To write equations, I use the \begin{align*} ... \end{align*} commands. I type my equations inside it. I add lines of text or paragraphs in between using the command \intertext. Now my question is how do I number the equations selectively. I want to make it clear that I do not want to number all the equations. I want to number only certain selected equations in order. Please explain.

• \notag also works to suppress the number on selected lines. – barbara beeton Oct 18 '14 at 16:56