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I'm using this template for a poster presentation. In the main result block/alertblock, the math symbols do not appear in the desired size. Any help in resolving this is much appreciated.

\documentclass{beamer} 
\usepackage{beamerposter} 
\usetheme{confposter} 
\usepackage{lmodern}
\usepackage{exscale}
\title{.} 
\author{.} 
\institute{.} 


\begin{document} 

\begin{frame} 
$$\mathcal{D}$$
\[ \sum x \] 
\end{frame} 

\end{document}

\mathscr{} not the same size as the other symbols:

\documentclass[final]{beamer}
\usepackage{graphicx}
\usepackage{enumerate}
\usepackage{mathrsfs}
\usepackage{amsmath}
\usepackage{amssymb}
\DeclareMathOperator{\sinc}{sinc}
\usepackage[scale=1.24]{beamerposter}
\usetheme{confposter} 
\usepackage{lmodern}
\usepackage{exscale}


\setbeamercolor{block title}{fg=ngreen,bg=white} 
\setbeamercolor{block body}{fg=black,bg=white} 
\setbeamercolor{block alerted title}{fg=white,bg=dblue!70} 
\setbeamercolor{block alerted body}{fg=black,bg=dblue!10} 

\newlength{\sepwid}
\newlength{\onecolwid}
\newlength{\twocolwid}
\newlength{\threecolwid}
\setlength{\paperwidth}{48in} 
\setlength{\paperheight}{36in} 
\setlength{\sepwid}{0.024\paperwidth} 
\setlength{\onecolwid}{0.22\paperwidth} 
\setlength{\twocolwid}{0.464\paperwidth} 
\setlength{\threecolwid}{0.708\paperwidth} 
\setlength{\topmargin}{-0.5in} 


\usepackage{booktabs} 

\title{Hello} 

\author{} 

\institute{}

%----------------------------------------------------------------------------------------

\begin{document}

\addtobeamertemplate{block end}{}{\vspace*{2ex}} % White space under blocks
\addtobeamertemplate{block alerted end}{}{\vspace*{2ex}} % White space under highlighted (alert) blocks

\setlength{\belowcaptionskip}{2ex} % White space under figures
\setlength\belowdisplayshortskip{2ex} % White space under equations

\begin{frame}[t] 

\begin{columns}[t] 

\begin{column}{\sepwid}\end{column} 

\begin{column}{.29\textwidth}

\begin{alertblock}{Abstract}

\end{alertblock}


\begin{block}{Introduction}


\end{block}

\begin{block}{Background material}
\begin{itemize}
\item Note
\[
(\mathscr{A}_r f  )(x)=100 x. 
\]

\end{itemize}
\end{block}

\end{column} % End of the first column

\begin{column}{\sepwid}\end{column} % Empty spacer column

\begin{column}{.38\textwidth}
\begin{block}{Materials}





\end{block}








\end{column} % End of the second column

\begin{column}{\sepwid}\end{column} % Empty spacer column

\begin{column}{.29\textwidth}

\begin{block}{Conclusion}


\end{block}


\begin{block}{Additional Information}


\end{block}







\end{column} 

\end{columns} 

\end{frame} 

\end{document}
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  • 2
    While your example does show the problem, most of it isn't needed. (You're asking about \sum, why all the text and images etc?) In fact, all you need is \documentclass{beamer} \usepackage{beamerposter} \usetheme{confposter} \title{.} \author{.} \institute{.} \begin{document} \begin{frame} \[ \sum x \] \end{frame} \end{document}, and removing confposter also removes the problem. (That is why we ask for minimal examples, it makes it a lot clearer where the problem actually is.) Mar 11, 2018 at 10:43
  • 2
    beamerthemeconfposter.sty, at least the version I have, does \RequirePackage{lmodern}, so it's likely the same problem I referred to in your previous question (now deleted?), and you can try the same fix, as mentioned in e.g. tex.stackexchange.com/questions/119660 \usepackage{exscale}. Mar 11, 2018 at 10:47
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    OK, then can you edit your example to remove all the unnecessary bits (cf. my first comment), and also add in a couple of symbols with \mathcal/\mathscr? (Now that you mention it I remember you saying something about that in your previous question, but there is no mention of them in this question, and they do not appear in the code.) Mar 11, 2018 at 17:14
  • 1
    You should not use $$..$$, see tex.stackexchange.com/q/503 Mar 11, 2018 at 17:22
  • 1
    This is what I get from your MWE: i.sstatic.net/quGbq.png Which size do you want to change? Mar 11, 2018 at 17:25

1 Answer 1

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Based on Using 'xfrac' with 'mathrsfs'

\RequirePackage{fix-cm}
\documentclass{beamer} 
\usepackage{mathrsfs}
\usepackage[scale=1.24]{beamerposter}
\usetheme{confposter} 

\title{.} 
\author{.} 
\institute{.} 

\DeclareFontFamily{U}{rsfs}{\skewchar\font127 }
\DeclareFontShape{U}{rsfs}{m}{n}{%
   <-6> rsfs5
   <6-8> rsfs7
   <8-> rsfs10
}{}

\begin{document}

\begin{frame}[t] 

\[
A\mathscr{A}
\]

\end{frame} 

\end{document}

enter image description here

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