# How to change columns distance? [duplicate]

Possible Duplicate:
Setting the column gap in a twocolumn document

How can I change the distance of two columns in a two-column document?

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## marked as duplicate by lockstep, Marco Daniel, Werner, Joseph Wright♦Sep 11 '11 at 15:31

Have a look at Setting the column gap in a twocolumn document. Please tell us in a comment, if it helped, so we can close this question here as a duplicate. –  Stefan Kottwitz Sep 11 '11 at 15:28
Yes, it helped me. Thank you very much Stefan Kottwitz. –  amir Sep 11 '11 at 16:18

Here is the internal definition of \twocolumn. In this definition you can see all length which are use.

\def \twocolumn {%
\clearpage
\global\columnwidth\textwidth
\global\divide\columnwidth\tw@
\global\hsize\columnwidth
\global\linewidth\columnwidth
\global\@twocolumntrue
\global\@firstcolumntrue
\col@number \tw@
\@ifnextchar [\@topnewpage\@floatplacement
}


Taken from latex.ltx

You are looking for \columnsep.

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