placing subscript under \max in \frac

Question

\documentclass{article}
\usepackage{amsmath}

\begin{document}

\begin{align}
\max_i\frac{1}{\max_i}
\end{align}

\end{document}

results in i beeing placed as intended outside \frac, but not beeing placed under the max operator inside the fraction. How can this be fixed?

Welcome to TeX.SX! Your document does not compile. It misses either amsmath or mathtools package — user31729, Mar 11, 2015 at 10:28

Steven B. Segletes · Accepted Answer · 2015-03-11 10:39:25Z

3

I found a solution using

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\begin{align}
\frac{1}{\max\limits_i}
\end{align}
\end{document}

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answered Mar 11, 2015 at 10:28

Twonky

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4

Alternately, one could use \frac{1}{\displaystyle\max_i}. The issue is that inside a \frac, things are not, by default \displaystyle (equation style) but instead \textstyle (inline style). One must explicitly tell the \frac argument to present itself in \displaystyle.
– Steven B. Segletes
Mar 11, 2015 at 10:38
2

You can make your post display as text by indenting it 4 characters, or alternately by highlighting it in the edit box and clicking the {} symbol above the box. As SoundsOfSilence noted, you should provide complete working code. I have edited your answer to do so.
– Steven B. Segletes
Mar 11, 2015 at 10:41
2

Whoever downvoted this answer, please give the first-time poster some slack, as it is clear that Twonky is posting in good faith. Be a coach, not a law-enforcement officer.
– Steven B. Segletes
Mar 11, 2015 at 10:47

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