I want to write double column document and I used this command \documentclass[twoside]{article} but it is not working, I do not know what is wrong and why it is disabled.
[Tex/LaTex] How to produce a double column document in Latex
two-column
Related Solutions
Here's one possible solution using the twocolumn class option and figure* and two minipages to typeset the listings (since figure* was used, the listings will appear on the top of the next page):
\documentclass[twocolumn]{article}
\usepackage{listings}
\usepackage{lipsum}
\begin{document}
\lipsum[1-6]
\begin{figure*}
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
if (i<>0) then i := 0;
\end{lstlisting}
\end{minipage}%
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
\end{lstlisting}
\end{minipage}%
\caption{Two side-by-side listings}
\label{fig:listings}
\end{figure*}
\lipsum[1-6]
\end{document}
And here's now another option: instead of using the twocolumn document option, the multicol package is used to produce the text in two-column mode; the multicols environment is ended, the side-by-side listings are typeset using simple minipages (the caption package was used to produce a possible caption using \captionof), and then another multicols environment begins:
\documentclass{article}
\usepackage{multicol}
\usepackage{listings}
\usepackage{caption}
\usepackage{lipsum}
\begin{document}
\begin{multicols}{2}
\lipsum[1-2]
\end{multicols}
\noindent\begin{minipage}{\textwidth}
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
if (i<>0) then i := 0;
\end{lstlisting}
\end{minipage}%
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
\end{lstlisting}
\end{minipage}%
\captionof{figure}{Two side-by-side listings}
\label{fig:listings}
\end{minipage}
\begin{multicols}{2}
\lipsum[1-2]
\end{multicols}
\end{document}
In this last option, the usual restriction of multicol with floats apply.
When using the geometry package to set your landscape and twocolumn mode, \maketitle behaves as expected:
\documentclass{article}
\usepackage[landscape,twocolumn]{geometry}% http://ctan.org/pkg/geometry
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\author{An author}
\title{A title}
\begin{document}
\maketitle
\lipsum
\end{document}
Best Answer
The
twosideoption is not about placing text in a multicolumn fashion. Whileonesideis typical for articles and reports, thetwosideoption is loaded when you want to have a double-sided document, allowing you to set the margins, asymmetrically, in order to bind the document as a book.If you want to place text in multiple columns, you can:
twocolumnoption to your document class.\twocolumnbefore the text you want to split into two columns. Later you can add\onecolumnto get back to the standard one column.multicolpackage, and then enclose the text you want in two (or more) columns within its environment, like\begin{multicols}{#}...\end{multicols}. You don't need to specify one column after this. The#symbolizes the number of columns the text will split into.Note that you can combine some of these. Adding the
twocolumnclass option and using themulticolsenvironment, will cause the text inside the latter to appear in the first half (left) of the page.