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Guide to LaTeX (4th Edition) (Tools and Techniques

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38 Chapter 3. Document Layout <strong>and</strong> Organization<br />

10pt 11pt 12pt<br />

This is the size of the font in which the normal text in the document will<br />

be set. The default is 10pt, which means that this is the value assumed if<br />

no size option is specified. All other font size declarations are relative <strong>to</strong><br />

this st<strong>and</strong>ard size, so that the section titles, footnotes, <strong>and</strong> so on will all<br />

change size au<strong>to</strong>matically if a different basic font size is selected.<br />

Specifying paper size<br />

L AT E X calculates the text line width <strong>and</strong> lines per page according <strong>to</strong> the<br />

selected font size <strong>and</strong> paper mode. It also sets the margins so that the<br />

text is centered both horizontally <strong>and</strong> vertically. In order <strong>to</strong> do this, it<br />

needs <strong>to</strong> know which paper format is being used. This is specified by one<br />

of the following options:<br />

letterpaper (11 × 8.5 in) a4paper (29.7 × 21 cm)<br />

legalpaper (14 × 8.5 in) a5paper (21 × 14.8 cm)<br />

executivepaper (10.5 × 7.25 in) b5paper (25 × 17.6 cm)<br />

The default is letterpaper, American letter size paper, 11 × 8.5 in.<br />

Normally, the paper format is such that the longer dimension is the<br />

vertical one, the so-called portrait mode. With the option<br />

l<strong>and</strong>scape<br />

the shorter dimension becomes the vertical one, the l<strong>and</strong>scape mode.<br />

(One still has <strong>to</strong> ensure that the output is printed as l<strong>and</strong>scape; see for<br />

example page 232.)<br />

Page formats<br />

The text on the page may be formatted in<strong>to</strong> one or two columns with the<br />

options<br />

onecolumn twocolumn<br />

The default is onecolumn. In the case of the twocolumn option, the<br />

separation between the columns as well as the width of any rule between<br />

them may be specified by \columnsep <strong>and</strong> \columnseprule, described<br />

below.<br />

The even- <strong>and</strong> odd-numbered pages may be printed differently according<br />

<strong>to</strong> the options<br />

oneside twoside<br />

With oneside, all pages are printed the same; however, with twoside, the<br />

running heads are such that the page number appears on the right on odd

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