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<html>
<head><title>Help On LaTeX \<space></title></head>
<body bgcolor="#ffffff" text="#000000" link="#000099" vlink="#cc0000" alink="#cc0000">
<h1><font size="-2">Hypertext Help with LaTeX</font><br><font color="#cc0000">\<space></font></h1>
LaTeX normally leaves a little extra space after sentences. However, it
uses a rather simple rule for determining whether a period ends a
sentence: it assumes that periods end sentences <em>unless</em> they
follow an upper case letter. To let LaTeX know that a period does
<em>not</em> end a sentence after, for example, an abbreviation, use:
<p>
<tt>\<space></tt>
<p>
For example,
<pre>
<tt>Jones, et al.\ (1993) ...</tt>
</pre>
Such a space may also be needed after a text-producing command,
such as one defined with <a href="ltx-18.html"><tt>\newcommand</tt></a>.
As an example, consider
<pre>
<tt>\newcommand{\water}{H$_2$O}
\water, \water\ everywhere, but not a drop ...</tt>
</pre>
The first <tt>\water</tt> command is terminated by the comma;
note that LaTeX does not leave a space between the first <tt>\water</tt>
and the comma -- as desired -- and the trailing space is treated as an
interword space. However, the second <tt>\water</tt> command
is terminated by the space, but LaTeX would not leave an extra space after
this, running "H<sub>2</sub>Owater" into one word, except for the
trailing <tt>\ </tt>.
<p>
An alternate way to indicate the end of a command so that a trailing
space is interpreted as an interword space is to use braces:
<pre>
<tt>\water, \water{} everywhere, ...</tt>
</pre>
<hr>
See <a href="ltx-432.html"><tt>\@.</tt></a> for the opposite case<br>
See also <A href="ltx-99.html">Line and Page Breaking</A>,
<a href="ltx-143.html">Spaces and Boxes</a><br>
Go to <a href="ltx-2.html">LaTeX Table of Contents</a>
<hr>
<address>
Revised: Sheldon Green, 26 Jun 1995.
</address>
</body>
</html>
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