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I am not able to fit my equation onto one line so I want to increase the margin of the page (it looks like it is quite big by default anyway.

Does anyone know how to do this? Here is my template thus far

\documentclass[a4paper,11pt]{scrartcl}
\usepackage{amsmath} 
\usepackage[utf8]{inputenc}

\begin{document}

My document full of words and stuff.

\end{document}
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marked as duplicate by Werner, Kurt, Paul Gaborit, lockstep, Speravir Mar 10 '13 at 0:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2  
have a look at the geometry package; I imagine this question is a duplicate of something somewhere though :) –  cmhughes Oct 10 '12 at 18:26
2  
Instead of widening the margin, you could just try to fit that one equation in otherwise? Here's a solution for that: tex.stackexchange.com/a/75567/4012 –  doncherry Oct 10 '12 at 18:57
3  
Speaking in general, changing the page shape just because an object doesn't fit doesn't seem a good idea. Shortening the line width will almost surely create problems elsewhere. If you make an example of the offending paragraph, maybe some better advice can come along. –  egreg Oct 10 '12 at 19:55
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2 Answers

While you might not like the default, there actually was some thought that went into choosing the margins.

From the documentation of koma-script

The type area defines the size of the printed area of a page and its exact position, the text width depends on the selected font and font size (60–70 characters per line give optimal readability).

So while there are methods to change it, you may want to reconsider. If you don't like the defaults, you might want to consider wordlike package.

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2  
This doesn't answer the question. He might like the look of the optimally readable default but be forced to use specific margins for school or company work, etc. Suggesting the wordlike package is also unnecessary, he didn't say he wants to make it even uglier (IMHO) he just wanted to manually adjust the margins. –  s0rce Oct 10 '12 at 18:56
    
@s0rce, about worldlike package in CTAN: "The package simulates typical word processor layout: narrow page margins, ..." so this is really an answer to the question. Moreover, as solution to fit an equation could be other that reduce margins, the recommendation to maintain readable lines is rather appropriate IMHO. –  Fran Oct 10 '12 at 19:52
    
@s0rce I interpreted "it looks like it is quite big by default anyway" as the OP might be interested in a more word processor like layout. –  StrongBad Oct 10 '12 at 19:57
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If you're using the KOMA-bundle (as you do), then the margins should be changed with the typearea package, see the documentation chapter 2. You can also take a look at How to reduce the margins as Werner says.

If you're using the memmoir class (like me), then you could take a look in chapter 2 in memman. The example (section 2.9) should be enough.

If you're using a different document class, then the geometry package is (most likely) the way to go.

When you change the layout of the page it's a good idea to know a little about typography. If you're interested you could take a look at Notes on Book Design.

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