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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.

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2 Answers 2

up vote 20 down vote accepted

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}

\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}

enter image description here

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thanks so much! this seems to work exactly how I want it! –  BeauGeste Aug 28 '11 at 4:22
1  
I tried to put this code in a Elsevier two-column article but it doesn't work. It adds some strange text above and below (as you can even see in this example itself) the equation and stay only within one column. Any suggestions? –  Udita K. Jul 13 '13 at 3:07
1  
@UditaK.: The package lipsum and its command \lipsum is just added to provide some dummy/filler text. –  Speravir Mar 27 at 3:52

If you write the command as

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

\begin{document}


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

The strange text will go away
\end{document} 
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1  
Could you, please, write more elaborate, what the relevant difference is to Gonzalo’s answer? What I mean: The package lipsum and its command \lipsum is just for dummy text, but I do not know, whether the added new lines are signifacant changes in REVTeX. –  Speravir Mar 27 at 3:36
    
OK, actually I have REVTeX installed, and running Gonzalo’s code shows no issue with the missing new lines. –  Speravir Mar 27 at 3:54

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