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}
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
answered Aug 10 '16 at 8:59
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@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
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@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
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@MSKantulu Look at posts under meta.tex.stackexchange.com/search?q=code+comment – egreg Aug 10 '16 at 10:35
$...$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$are not needed, the=should also be math mode – daleif Aug 10 '16 at 7:03{}on the gui. – user30471 Aug 10 '16 at 7:07