Both LaTeX
and amsmath
put tags aligned at right margin (in reqno
mode by default), or aligned at left margin (in leqno
mode).
I'd like a document where is posible that tags are separated of the margin by a fixed distance to say something like \tagmarginsep
whether i use leqno
or reqno
mode.
Example
\documentclass{article}
\usepackage[width=0.7\textwidth,showframe]{geometry} % only for ajusting width and show margins
\usepackage{amsmath}
%---------------------------------------
% Switch between `leqno` and `reqno` mode in the same document
\makeatletter
\newcommand{\leqnomode}{\tagsleft@true\let\veqno\@@leqno}
\newcommand{\reqnomode}{\tagsleft@false\let\veqno\@@eqno}
\makeatother
%---------------------------------------
\newlength{\tagmarginsep} % Distance required
%\setlength{\tagmarginsep}{1cm} % For example
%---------------------------------------
\begin{document}
\vspace*{2ex}
\noindent This equation is in \texttt{reqno} mode (by default)
\begin{equation}
x=y
\end{equation}
and the next equation, number \eqref{eq2}, is in \texttt{leqno} mode.
\leqnomode
\begin{equation}\label{eq2}
a=b
\end{equation}
\end{document}
This gets something like
However i'd like something like
where the length of the red line(obviously without to draw this line) must be the separation between tag and margin controlled by \tagmarginsep
. Is this possible for all (or some) numbered (or tagged) equations?
Best Answer
You can change \displaywidth and/or \displayindent: