# How can I get a symbol below a word? [duplicate]

I wanted to get theta below argmax in the middle . I used the following code:

\usepackage{amsmath,amssymb,graphicx,enumerate,algorithm}
\begin{document}
$\theta_i$ = $argmax_{\theta} Q(\theta, \theta_i)$
\end{document}

• (1) welcome, (2) the limit only goes under the argmax when it is used in display math context, you are using $...$ which is inline math mode, there the limit is not shown below argmax as it will disturb the line spacing. – daleif Aug 10 '16 at 7:02
• BTW: next time please provide a full example, you are missing the document class. Besides in your formula, the two middle $ are not needed, the = should also be math mode – daleif Aug 10 '16 at 7:03 • You can highlight code in your post using back-ticks. For code-blocks indent them by four spaces or use the {} on the gui. – user30471 Aug 10 '16 at 7:07 ## 1 Answer I think you are looking for an operator \argmax which can be defined in the following way (needs amsmath) \DeclareMathOperator*{\argmax}{arg\,max}  To have "theta below argmax in the middle" in inline math, you have to specify \limits when using it. MWE: \documentclass{article} \usepackage{amsmath} \DeclareMathOperator*{\argmax}{arg\,max} \begin{document} \noindent Inline math:$\theta_i = \argmax\limits_{\theta} Q(\theta, \theta_i)\$

\bigskip\bigskip

\noindent Displayed math

$\theta_i = \argmax_{\theta} Q(\theta, \theta_i)$

\end{document}


Output

• @egreg I could get the format of code for answers and questions by using the back-quote but same didn't work for writing a code snippet in the comment section. Could you please explain? – MSKantulu Aug 10 '16 at 10:22
• @MSKantulu Comments obey slightly different rules; for instance, in order to print \\ you need double back quotes. – egreg Aug 10 '16 at 10:25
• @egreg can you give any helping link for these formatting stuffs in comments? The double back quotes didn't get me on the next line – MSKantulu Aug 10 '16 at 10:33
• @MSKantulu Look at posts under meta.tex.stackexchange.com/search?q=code+comment – egreg Aug 10 '16 at 10:35