# How to add text under symbol in equation ?

I was trying to make something like this

(something similar to \substack in \sum) in equation. How to do this ?

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You should place the expression in the subscript, as shown below. Most LaTeX books explain this.

\documentclass{article}

\begin{document}

Display mode: $\max_{1 \leq j \leq n}$

Inline mode: $\max_{1 \leq j \leq n}$, $\max\limits_{1 \leq j \leq n}$.

\end{document}


Note how I used \limits to force the subscript under the operator in inline mode (if you think you need \limits, think again — maybe the defaults look better after all!).

If you find that the subscripted expression is too long and introduces excessive whitespace, use the \smashoperator macro from the mathtools package.

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ah thanks, I thought it was limited to \sum command only. Silly me. –  Yumyai Mar 11 '11 at 10:07

Solved this for Inline mode by using $\underset{1 \leq j \leq n}{\max}$, however this approach requires the amsmath package.

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This is particularly useful when using user defined operators. $\operatorname{Res}\limits_{z=z_{0}}$ will not give you the desired result, whilst $\underset_{z=z_{0}}{\operatorname{Res}}$ will. –  Alfredo Hernández Oct 23 '14 at 17:56
This is also useful when you want to put a subscript under something LaTeX doesn't think is a math operator (like that's a meaningful distinction), and therefore prevents the use of \limits. –  Richard Rast Nov 14 '14 at 14:45

I would solve it like this:

\documentclass{scrartcl}
\usepackage{amsmath}
\begin{document}
$\max\limits_{1\leq j\leq n}$
\end{document}

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In display math, there's no need to use \limits. –  Hendrik Vogt Mar 11 '11 at 9:07
@Hendrik Vogt: That's good to know. –  meep.meep Mar 11 '11 at 9:12