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<title>UK TeX FAQ -- question label marginparside</title>
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<h3>Getting <code>\</code><code>marginpar</code> on the right side</h3>
<p>In an ideal world, marginal notes would be in "analagous" places on
every page: notes on an even-side page would be in the left margin,
while those on an odd-side page would be in the right margin. A
moment's thought shows that a marginal note on the left needs to be
typeset differently from a marginal note on the right. The LaTeX
<code>\</code><code>marginpar</code> command therefore takes two arguments in a
<code>twoside</code> documents:
<code>\</code><code>marginpar[</code><em>left text</em><code>]{</code><em>right text</em><code>}</code>. LaTeX uses the
"obvious" test to
get the <code>\</code><code>marginpar</code>s in the correct margin, but a booby-trap arises
because TeX runs its page maker asynchronously. If a
<code>\</code><code>marginpar</code> is processed while page n is being built, but
doesn't get used until page n+1, then the <code>\</code><code>marginpar</code> will turn
up on the wrong side of the page. This is an instance of a general
problem: see
"<a href="FAQ-oddpage.html">finding if you're on an odd or an even page</a>".
<p>The solution to the problem is for LaTeX to 'remember' which side
of the page each <code>\</code><code>marginpar</code> <em>should</em> be on. The
<i>mparhack</i> package does this, using label-like marks stored in
the <code>.aux</code> file; the <i>memoir</i> class does likewise.
<dl>
<dt><tt><i>memoir.cls</i></tt><dd><a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/memoir.zip">macros/latex/contrib/memoir</a> (<a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/memoir.tar.gz">gzipped tar</a>, <a href="http://www.tex.ac.uk/tex-archive/macros/latex/contrib/memoir/">browse</a>)
<dt><tt><i>mparhack.sty</i></tt><dd><a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/mparhack.zip">macros/latex/contrib/mparhack</a> (<a href="ftp://cam.ctan.org/tex-archive/macros/latex/contrib/mparhack.tar.gz">gzipped tar</a>, <a href="http://www.tex.ac.uk/tex-archive/macros/latex/contrib/mparhack/">browse</a>)
</dl>
<p><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=marginparside">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=marginparside</a>
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