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<span id="g_t_0040_002d-_0040hyphenation"></span><div class="header">
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<span id="g_t_0040_002d-and-_0040hyphenation_003a-Helping-TeX-Hyphenate"></span><h3 class="section">13.3 <code>@-</code> and <code>@hyphenation</code>: Helping TeX Hyphenate</h3>
<span id="g_t_002d-and-hyphenation"></span><span id="index-_002d_002d-_0028discretionary-hyphen_0029"></span>
<span id="index-hyphenation"></span>
<span id="index-Hyphenation_002c-helping-TeX-do"></span>
<span id="index-Fine_002dtuning_002c-and-hyphenation"></span>
<p>Although TeX’s hyphenation algorithm is generally pretty good, it
does miss useful hyphenation points from time to time. (Or, far more
rarely, insert an incorrect hyphenation.) So, for documents with an
unusual vocabulary or when fine-tuning for a printed edition, you may
wish to help TeX out. Texinfo supports two commands for this:
</p>
<dl compact="compact">
<dt><code>@-</code></dt>
<dd><p>Insert a discretionary hyphen, i.e., a place where TeX can (but does
not have to) hyphenate. This is especially useful when you notice an
overfull hbox is due to TeX missing a hyphenation (see <a href="Overfull-hboxes.html">Overfull hboxes</a>). TeX will not insert any hyphenation points itself into a
word containing <code>@-</code>.
</p>
</dd>
<dt><code>@hyphenation{<var>hy-phen-a-ted words</var>}</code></dt>
<dd><p>Tell TeX how to hyphenate <var>hy-phen-a-ted words</var>. As shown, you
put a ‘<samp>-</samp>’ at each hyphenation point. For example:
</p><div class="example">
<pre class="example">@hyphenation{man-u-script man-u-scripts}
</pre></div>
<p>TeX only uses the specified hyphenation points when the
words match exactly, so give all necessary variants, such as plurals.
</p></dd>
</dl>
<p>Info, HTML, and other non-TeX output is not hyphenated, so none of
these commands have any effect there.
</p>
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