Distance between equation and its reference number

Question

I have the following MWE

\documentclass[xcolor=pdftex,t,11pt]{beamer}

\begin{document}
\renewcommand{\theequation}{A\arabic{equation}}
\setcounter{equation}{0} 
\section{Appendix}
\begin{frame}[label=C1]
\frametitle{Appendix}
\framesubtitle{Derivation of Eq. 7}
\begin{itemize}
\item In order to derive Eq. 7, let us re-write Eq. {\ref{6}} as follows:\medskip
\begin{eqnarray}
\Delta _{i}=V_{i}^{F}-\left(1-p_{j}\right)f_{i}\left(L_{i}^{N}\right)-p_{i}f_{j}\left(  L_{j}^{N}\right)-v_{i}\left(T-L_{i}^{N}\right)
\begin{array}{c}
> \\ 
= \\ 
<%
\end{array}%
0
\end{eqnarray}
\end{itemize}
\end{frame}

\end{document}

I am wondering how I can leave some space between the 0 and the number of equation. Any hint? Thanks in advance

it is best not to use eqnarray at all (use the amsmath package instead) but if you do use it, only use it for multiline displays and always have two & on each line. — David Carlisle, Apr 19 '18 at 22:35

score 1 · Accepted Answer · answered Apr 19 '18 at 22:45

Never use eqnarray. It doesn't cooperate with hyperref, for instance.

If you remove all useless \left and \right and use the proper symbol for the triple relation, the equation will fit. Without the itemize, it fits even better.

For setting manually a tag, use \tag.

\documentclass[xcolor=pdftex,t,11pt]{beamer}

\begin{document}

\section{Appendix}

\begin{frame}[label=C1]
\frametitle{Appendix}
\framesubtitle{Derivation of Eq. 7}
\begin{itemize}
\item In order to derive Eq. 7, let us re-write Eq. {\ref{6}} as follows:
\begin{equation}\tag{A}
\Delta _{i}=V_{i}^{F}-(1-p_{j})f_{i}(L_{i}^{N})-p_{i}f_{j}(L_{j}^{N})-v_{i}(T-L_{i}^{N})
\gtreqqless
0
\end{equation}
\end{itemize}

In order to derive Eq. 7, let us re-write Eq. {\ref{6}} as follows:
\begin{equation}\tag{A}
\Delta _{i}=V_{i}^{F}-(1-p_{j})f_{i}(L_{i}^{N})-p_{i}f_{j}(L_{j}^{N})-v_{i}(T-L_{i}^{N})
\gtreqqless
0
\end{equation}

\end{frame}

\end{document}

Distance between equation and its reference number

1 Answers1