Question

It seems to be common practice, when writing mathematics, to add punctuation to displayed formulas.

Is there any trick to avoid putting the punctuation mark inside the formula?

I want to avoid

Consider the function
\[ \sin(x).\]

I’d rather have something like:

Consider the function
\[ \sin(x)\].

But of course the full stop is displayed below the formula.

Is there a clever way to separate formulas and punctuation in LaTeX?

Answer 1

You can load the breqn package (compatible with amsmath) and have this behaviour inbuilt with its dmath environment:

Consider the function
\begin{dmath}\sin(x)\end{dmath}.

Will output the same as \[\sin(x).\], i.e., as if the dot was inside the expression.

As a bonus, you’ll also get automatic line-breaking in your math equation.