[Tex/LaTex] One column equation in twocolumn document class

equationsrevtextwo-column

I am writing a paper (revtex4-1, reprint documentclass which I believe uses twocolumn) and need to have a long equation that needs to break the two column format. I've seen answers to this question using multicol but I can't use that class. So does anyone know how to do this from twocolumn class?

I have tried one way that makes the equation a figure but I can't get the alignment with the text correct.

Any help would be greatly appreciated.

Best Answer

The widetext environment changes the formatting from two-column to one-column to better accommodate very long equations that are more easily read when typeset to the full width of the page:

\documentclass[twocolumn]{revtex4-1}
\usepackage{lipsum}
\usepackage{widetext}

\begin{document}

\lipsum[1]
\begin{widetext}
\[
a + b + c + d + e + f + g + h + i + j + k + l + m + n + o + p + q
\]
\end{widetext}
\lipsum[1]

\end{document}

Note that the lipsum package and commands is used only for adding dummy text. Example output of widetext latex command

Related Solutions

[Tex/LaTex] Problems using widetext.sty

This works:

\documentclass[twocolumn]{article}
\usepackage{amsmath}
\usepackage{widetext}
\usepackage{flushend}
\usepackage{cuted}

\begin{document}

a lot of text ...

Here
\begin{widetext}
\begin{equation} \label{e27}
\begin{aligned}
&T_{nn''}^{mm''}=({-}1)^{p-p''}\,d_0^{\infty}\,J_{m-m''}(au)\,J_{n''}(bu)\,J_{n+1}(u)\,du = \\
&\qquad\begin{cases}
& \dfrac{(q{+}p'')!\,(p{-}p'')!}{(q{-}q'')!\,(p{+}q'')!}\,a^{m-m''}b^{n''}\,P_{p-p''}^{(m-m'',n'')}
(1{-}2A^2)P_{p-p''}^{(m-m'',n'')}(2B^2{-}1) \\ 
& \text{when}~~~n-n''\geq m-m''\geq0~,\\
\\
& \dfrac{(p{+}q'')!\,(q{-}q'')!}{(p{-}p'')!\,(q{+}p'')!}\,a^{m''-m}b^{n''}\,P_{q-q''}^{(m''-m,n'')}
(1{-}2A^2)\,P_{q-q''}^{(m''-m,n'')}(2B^2{-}1)~~~ \\ 
& \text{when}~~~ n-n''\geq m''-m\geq0~, \\
\\
&0\text{ otherwise}.
\end{cases}
\end{aligned}
\end{equation}
\end{widetext}

a lot more text....
\end{document}

enter image description here

The version used of widetext.sty has been downloaded from

https://svn.einsteintoolkit.org/documents/Paper_EinsteinToolkit_2010/widetext.sty

[Tex/LaTex] Make \maketitle span only one column in a twocolumn document

When using the geometry package to set your landscape and twocolumn mode, \maketitle behaves as expected:

enter image description here

\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

Related Solutions

[Tex/LaTex] Problems using widetext.sty

[Tex/LaTex] Make \maketitle span only one column in a twocolumn document

Related Question