appendiceselsarticle
\documentclass[preprint,review,12pt]{elsarticle}
\begin{document}
\appendix \label{Appendix}
\section{Mass matrix}\label{Mass Matrix}
Blabla ....
\section{Gyroscopic matrix}\label{Gyroscopic Matrix}
Blabla...
\end{document}
I get the following:
Is it possible to have just one appendix without A and B? and How I
can refer to the appendix in my text ?
The nameref works in the appendix also (as shown in MWE of this answer). Hence without a complete MWE, we won't be able to help.
However, a better idea will be to use the package cleveref.
\documentclass{article}
\usepackage{lipsum}
\usepackage{hyperref}
\usepackage{cleveref}
\begin{document}
\section{One}\label{sec:one}
\lipsum[1]
\appendix
\label{appendix}
\section{Background}
\label{sec:background}
\lipsum[2]
From sections~\nameref{sec:one} and~\nameref{sec:background}, we get the idea of using \verb|nameref| from \verb|hyperref|!
From sections~\ref{sec:one} and~\ref{sec:background}, do we get the idea?
From \cref{sec:one} and~\cref{sec:background}, do we get the idea of using the package \verb|cleveref|?
\end{document}
For details, refer to the package documentation (texdoc cleveref from command prompt)
This is so, because \insertsectionnumber is defined as (in the file beamerbasesection.sty)
\def\insertsectionnumber{\@arabic\c@section}
And \appendix doesn't change this;
\newcommand<>\appendix{%
\only#1{\part{\appendixname}
\addtocontents{nav}{\protect\headcommand{\protect\beamer@appendixpages{\the\c@page}}}}}
so the counter will appear using arabic representation.
You can change this, redefining \insertsectionnumber in the proper location:
\setcounter{section}{0}
\renewcommand\insertsectionnumber{\Alph{section}}
Perhaps you want to let \appendix do this change:
\documentclass{beamer}
\makeatletter
\renewcommand<>\appendix{%
\setcounter{section}{0}%
\renewcommand\insertsectionnumber{\Alph{section}}%
\only#1{\part{\appendixname}
\addtocontents{nav}{\protect\headcommand{\protect\beamer@appendixpages{\the\c@page}}}}}
\makeatother
\begin{document}
\section{test1}
\begin{frame}{\insertsectionnumber.~\insertsection}
bal bla
\end{frame}
\appendix
\section{test2}
\begin{frame}{\insertsectionnumber.~\insertsection}
bla bla
\end{frame}
\end{document}
Best Answer
Since you appear to want to create an unnumbered appendix section, the normal
\label-\refcross-referencing mechanism won't do the job. Instead, I suggest you load thehyperrefpackage -- you may already be doing so -- and use that package's\hypertarget-\hyperlinkmechanism, as is done in the code below.