How should I typeset repeated multiplication?

Question

I need to expand an exponent and I want to typeset it as such:

                 n times
A^k = A * A * A * ... * A * A

Is there a way to do this in LaTeX? Should I be doing something else altogether? Thanks!

Perhaps somethine like Typesetting 144…4 with “n times” under the 4's is easy, but what about \sqrt{144…4}?. — Peter Grill, Feb 09 '21 at 02:42
@JohnKormylo you're absolutely right, but I wanted it fully written out so I could show that parts of the product telescoped. Thanks for the suggestion though! — doobdood, Feb 10 '21 at 21:39

score 4 · Accepted Answer · answered Feb 09 '21 at 02:42

4

Like this:

\documentclass{article}
\usepackage{mathtools}
\begin{document}
[
    A^k \coloneqq \overbrace{A\times A\times \cdots \times A}^{k-\text{times}}
]
\end{document}

answered Feb 09 '21 at 02:42

Jinwen

8,518

How should I typeset repeated multiplication?

1 Answers1