multicolrules
Trying to have a vertical line between the 4th and the 5th column in a multicol environment.
\documentclass[a4paper,10pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{multicol}
\usepackage{lipsum}
%opening
\begin{document}
\begin{multicols}{5}
\lipsum
%... line_beween_forth_and_fith_column
\end{multicols}
\end{document}
I don't know if this really answers your question; printing half of the horizontal rule, a very long vertical one (but "smashed", so its length is not "seen" by TeX) and the other half rule seems to work.
I use some low level commands, so to avoid some glitches with \rule.
\documentclass[final,hyperref={pdfpagelabels=false}]{beamer}
\usepackage[english]{babel}
\usepackage[latin1]{inputenc}
\usepackage{multicol}
\usepackage[orientation=portrait,size=a0,scale=1.4,debug]{beamerposter}
\usepackage{lipsum}
%\setlength{\columnseprule}{2mm}
\begin{document}
\begin{frame}
\begin{beamercolorbox}[wd=\paperwidth]{headline}
\centering\huge Headline and stuff\\
\rule{.5\paperwidth}{2mm}\kern-1mm
\smash{\vrule height 0pt depth \paperheight width 2mm}\kern-1mm
\rule{.5\paperwidth}{2mm}%
\end{beamercolorbox}
\begin{multicols}{2}
\huge \lipsum[1-3]
\end{multicols}
\end{frame}
\end{document}
For example
\documentclass[11pt]{book}
\usepackage{color}
\usepackage{multirow}
\begin{document}
\begin{center}
\begin{tabular}{c@{} c@{} c@{} c@{} c@{} c@{} c@{} c@{} c@{} c@{} c@{} c@{}}
%\multirow{2}{*}{$-$}&1&5&7&{\huge,}&5&&&5&{\color{white}1}&{\color{white}1}& {\color{white}1}\\
\multirow{2}{*}{$-$}&1&5&7&{\huge,}&5&&&\vline\,5&{\color{white}1}&{\color{white}1}& {\color{white}1}\\
\cline{9-12}
&1&5&&&&{\color{white}1}&{\color{white}1}&3&1&&\\
\cline{2-6}
\multirow{2}{*}{$-$}&&&7&&&&&&&&\\
&&&5&&&&&&&&\\
\cline{2-6}
&&&2&&&&&&&&\\
\end{tabular}
\end{center}
\end{document}
Best Answer