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(From these references no 0018 text was directly copied.) 0019 0020 Copyright 2007, 2008, 2009, 2010, 2011, 2012, 2013, 0021 2014, 2015, 2016, 2017, 2018 Karl Berry. 0022 0023 Copyright 1988, 1994, 2007 Stephen Gilmore. 0024 0025 Copyright 1994, 1995, 1996 Torsten Martinsen. 0026 0027 Permission is granted to make and distribute verbatim copies of 0028 this manual provided the copyright notice and this permission notice 0029 are preserved on all copies. 0030 0031 0032 Permission is granted to copy and distribute modified versions of this 0033 manual under the conditions for verbatim copying, provided that the entire 0034 resulting derived work is distributed under the terms of a permission 0035 notice identical to this one. 0036 0037 Permission is granted to copy and distribute translations of this manual 0038 into another language, under the above conditions for modified versions. --> 0039 <!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> 0040 <head> 0041 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 0042 <title>\setlength (LaTeX2e unofficial reference manual (November 2018))</title> 0043 0044 <meta name="description" content="\setlength (LaTeX2e unofficial reference manual (November 2018))"> 0045 <meta name="keywords" content="\setlength (LaTeX2e unofficial reference manual (November 2018))"> 0046 <meta name="resource-type" content="document"> 0047 <meta name="distribution" content="global"> 0048 <meta name="Generator" content="makeinfo"> 0049 <link href="index.html#Top" rel="start" title="Top"> 0050 <link href="IndexDocument.html#Index" rel="index" title="Index"> 0051 <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 0052 <link href="Lengths.html#Lengths" rel="up" title="Lengths"> 0053 <link href="_005caddtolength.html#g_t_005caddtolength" rel="next" title="\addtolength"> 0054 <link href="Units-of-length.html#Units-of-length" rel="prev" title="Units of length"> 0055 <style type="text/css"> 0056 <!-- 0057 /* $Id: latex2e.css 690 2018-09-15 15:20:19Z jimhefferon $ 0058 Minor css for latexrefman. 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The length name <var>len</var> 0132 must begin with a backslash, <code>\</code>. The <code>amount</code> can be a 0133 rubber length (see <a href="Lengths.html#Lengths">Lengths</a>). It can be positive, negative or zero, 0134 and can be in any units that LaTeX understands (see <a href="Units-of-length.html#Units-of-length">Units of length</a>). 0135 </p> 0136 <p>Below, with LaTeX’s defaults the first paragraph will be indented 0137 while the second will not. 0138 </p> 0139 <div class="example"> 0140 <pre class="example">I told the doctor I broke my leg in two places. 0141 0142 \setlength{\parindent}{0em} 0143 He said stop going to those places. 0144 </pre></div> 0145 0146 <p>If you did not declare <var>len</var> with <code>\newlength</code>, for example if 0147 you mistype the above as 0148 <code>\newlength{\specparindent}\setlength{\sepcparindent}{...}</code>, 0149 then you get an error like ‘<samp>Undefined control sequence. <argument> 0150 \sepcindent</samp>’. If you omit the backslash at the start of the length name 0151 then you get an error like ‘<samp>Missing number, treated as zero. <to be 0152 read again> \relax l.19 \setlength{specparindent}{0.6\parindent}</samp>’ 0153 </p> 0154 0155 0156 0157 <hr/><div class='referenceinfo'> <a href='https://latexref.xyz/'> <i>Unofficial LaTeX2e reference manual</i></a></div> 0158 </body> 0159 </html>