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+<?xml version="1.0" encoding="utf-8" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<meta name="generator" content="Docutils 0.12: http://docutils.sourceforge.net/" />
+<title>alphabeta: Greek symbols in text and math</title>
+<meta name="copyright" content="© 2010 Günter Milde" />
+<link rel="stylesheet" href="../../../../../Python/docutils-svn/docutils/docutils/writers/html4strict/html4css1.css" type="text/css" />
+<link rel="stylesheet" href="../../../../../Python/docutils-svn/docutils/docutils/writers/html4strict/html4css2.css" type="text/css" />
+</head>
+<body>
+<div class="document" id="alphabeta-greek-symbols-in-text-and-math">
+<h1 class="title">alphabeta: Greek symbols in text and math</h1>
+
+<dl class="docinfo">
+<dt class="copyright">Copyright</dt>
+<dd class="copyright">© 2010 Günter Milde</dd>
+<dt>Licence</dt>
+<dd><p>This work may be distributed and/or modified under the
+conditions of the <a class="reference external" href="http://www.latex-project.org/lppl.txt">LaTeX Project Public License</a>, either
+version&nbsp;1.3 of this license or any later version.</p>
+</dd>
+<dt>Identification</dt>
+<dd><pre class="literal-block">\NeedsTeXFormat{LaTeX2e}
+\ProvidesPackage{alphabeta}
+[2013/09/11 v0.4 macros for Greek letters in text and math]
+</pre>
+</dd>
+</dl>
+<div class="abstract topic">
+<p class="topic-title first">Abstract</p>
+<p>Use <tt class="literal">\alpha, \beta, ...</tt> for Greek letters in text and math
+mode.</p>
+</div>
+<dl class="docutils">
+<dt>Changelog:</dt>
+<dd><table class="borderless">
+<colgroup>
+<col width="14%" />
+<col width="7%" />
+<col width="79%" />
+</colgroup>
+<tbody>
+<tr><td><p>2012-06-26</p></td>
+<td><p>0.1</p></td>
+<td><p>initial version</p></td>
+</tr>
+<tr><td><p>2013-05-03</p></td>
+<td><p>0.2</p></td>
+<td><p>new accent macro names with <tt class="literal">lgrxenc.def</tt> 0.7</p></td>
+</tr>
+<tr><td><p>2013-05-28</p></td>
+<td><p>0.3</p></td>
+<td><p>use <tt class="literal">lgrenc.def</tt> from greek-fontenc,</p></td>
+</tr>
+<tr><td><!-- -->
+</td>
+<td>&nbsp;</td>
+<td><p>enable Unicode input in math mode.</p></td>
+</tr>
+<tr><td><p>2013-09-11</p></td>
+<td><p>0.4</p></td>
+<td><p>move to <a class="reference external" href="http://www.ctan.org/pkg/greek-fontenc">greek-fontenc</a>, support XeTeX/LuaTeX.</p></td>
+</tr>
+</tbody>
+</table>
+</dd>
+</dl>
+<div class="section" id="motivation">
+<h1>Motivation</h1>
+<p>By default, the <tt class="literal">\alpha, \beta, ...</tt> macros for Greek letters
+are only valid in mathematical mode.</p>
+<p>With this package, the math macros are redefined to work in both, text and
+math mode, so that Greek letters can be specified with the established
+command names in text, too.</p>
+<p>If used together with the <tt class="literal">utf8</tt> option of <a class="reference external" href="http://www.ctan.org/pkg/inputenc">inputenc</a>, literal Unicode
+characters can be used for Greek symbols in mathematical formulas.</p>
+<div class="attention">
+<p class="admonition-title">Attention!</p>
+<p>The macros work well in any font encoding for single symbols.
+However, with 8-bit TeX, the automatic font-encoding switches behind the
+doors interfere with kerning between letters and replacement of
+accent+character with a pre-composed character.</p>
+<p>Therefore, Greek text should be written with the help of <a class="reference external" href="http://www.ctan.org/cgi-bin/ctanPackageInformation.py?id=babel">babel</a> or
+<a class="reference external" href="http://www.ctan.org/pkg/polyglossia">polyglossia</a> (setting the language to <tt class="literal">greek</tt>) or wrapped in the
+provided <tt class="literal">ensuregreek</tt> macro. Using <a class="reference external" href="http://www.ctan.org/cgi-bin/ctanPackageInformation.py?id=babel">babel</a> or <a class="reference external" href="http://www.ctan.org/pkg/polyglossia">polyglossia</a> also helps
+to ensure proper hyphenation.</p>
+</div>
+</div>
+<div class="section" id="usage">
+<h1>Usage</h1>
+<pre class="code latex literal-block"><span class="keyword">\usepackage</span><span class="name builtin">{</span>alphabeta<span class="name builtin">}</span>
+</pre>
+<p>For details see <a class="reference external" href="alphabeta-test.tex">alphabeta-test.tex</a> and <a class="reference external" href="alphabeta-test.pdf">alphabeta-test.pdf</a>.</p>
+</div>
+<div class="section" id="implementation">
+<h1>Implementation</h1>
+<div class="section" id="requirements">
+<h2>Requirements</h2>
+<p>This package extends the <a class="reference external" href="textalpha.sty.html">textalpha</a> package:</p>
+<pre class="literal-block">\RequirePackage{textalpha}
+</pre>
+<p><cite>textalpha</cite> depends on <a class="reference external" href="http://www.ctan.org/pkg/greek-fontenc">greek-fontenc</a> and (with 8-bit TeX) recommends
+<a class="reference external" href="http://www.ctan.org/pkg/greek-inputenc">greek-inputenc</a>.</p>
+<p>This package requires the <a class="reference external" href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=etex">e-TeX</a> extensions (i.e. a not too old TeX
+distribution) for the <tt class="literal">\ifdefined</tt> test.</p>
+<p>It uses the <tt class="literal">\TextOrMath</tt> test from the <a class="reference external" href="http://www.ctan.org/pkg/fixltx2e">fixltx2e</a> standard LaTeX
+package:</p>
+<pre class="literal-block">\RequirePackage{fixltx2e}
+</pre>
+</div>
+<div class="section" id="postpone-the-re-definitions">
+<h2>Postpone the re-definitions</h2>
+<p>To prevent other packages overwriting the re-defined commands we postpone
+the next steps until the start of the document body:</p>
+<pre class="literal-block">\AtBeginDocument{
+</pre>
+</div>
+<div class="section" id="save-math-macros">
+<h2>Save math macros</h2>
+<p>Provide an alias for the standard math commands:</p>
+<pre class="literal-block">\let\mathGamma\Gamma
+\let\mathDelta\Delta
+\let\mathTheta\Theta
+\let\mathLambda\Lambda
+\let\mathXi\Xi
+\let\mathPi\Pi
+\let\mathSigma\Sigma
+\let\mathUpsilon\Upsilon
+\let\mathPhi\Phi
+\let\mathPsi\Psi
+\let\mathOmega\Omega
+%
+\let\mathalpha\alpha
+\let\mathbeta\beta
+\let\mathgamma\gamma
+\let\mathdelta\delta
+\let\mathepsilon\epsilon
+\let\mathzeta\zeta
+\let\matheta\eta
+\let\maththeta\theta
+\let\mathiota\iota
+\let\mathkappa\kappa
+\let\mathlambda\lambda
+\let\mathmu\mu
+\let\mathnu\nu
+\let\mathxi\xi
+\let\mathpi\pi
+\let\mathrho\rho
+\let\mathsigma\sigma
+\let\mathvarsigma\varsigma
+\let\mathtau\tau
+\let\mathupsilon\upsilon
+\let\mathphi\phi
+\let\mathchi\chi
+\let\mathpsi\psi
+\let\mathomega\omega
+% ``\digamma`` is defined by amsmath, provide a fallback
+\providecommand*{\digamma}{\textit{\textdigamma}}
+\let\mathdigamma\digamma
+</pre>
+</div>
+<div class="section" id="commands-to-access-greek-letters-by-name">
+<h2>Commands to access Greek letters by name</h2>
+<p>For letters defined in math mode, the commands work in both, text and math.</p>
+<p>Some Greek letters look identical to Latin letters and can therefore not be
+used as variable symbols in math formulas. These letters are not defined in
+TeX’s math mode, we provide an alias to the corrsponding <tt class="literal"><span class="pre">\text...</span></tt>
+command.</p>
+<pre class="literal-block">\providecommand*{\Alpha}{\textAlpha}
+\providecommand*{\Beta}{\textBeta}
+\renewcommand*{\Gamma}{\TextOrMath{\textGamma}{\mathGamma}}
+\renewcommand*{\Delta}{\TextOrMath{\textDelta}{\mathDelta}}
+\providecommand*{\Epsilon}{\textEpsilon}
+\providecommand*{\Zeta}{\textZeta}
+\providecommand*{\Eta}{\textEta}
+\renewcommand*{\Theta}{\TextOrMath{\textTheta}{\mathTheta}}
+\providecommand*{\Iota}{\textIota}
+\providecommand*{\Kappa}{\textKappa}
+\renewcommand*{\Lambda}{\TextOrMath{\textLambda}{\mathLambda}}
+\providecommand*{\Mu}{\textMu}
+\providecommand*{\Nu}{\textNu}
+\renewcommand*{\Xi}{\TextOrMath{\textXi}{\mathXi}}
+\providecommand*{\Omicron}{\textOmicron}
+\renewcommand*{\Pi}{\TextOrMath{\textPi}{\mathPi}}
+\providecommand*{\Rho}{\textRho}
+\renewcommand*{\Sigma}{\TextOrMath{\textSigma}{\mathSigma}}
+\providecommand*{\Tau}{\textTau}
+\renewcommand*{\Upsilon}{\TextOrMath{\textUpsilon}{\mathUpsilon}}
+\renewcommand*{\Phi}{\TextOrMath{\textPhi}{\mathPhi}}
+\providecommand*{\Chi}{\textChi}
+\renewcommand*{\Psi}{\TextOrMath{\textPsi}{\mathPsi}}
+\renewcommand*{\Omega}{\TextOrMath{\textOmega}{\mathOmega}}
+%
+\renewcommand*{\alpha}{\TextOrMath{\textalpha}{\mathalpha}}
+\renewcommand*{\beta}{\TextOrMath{\textbeta}{\mathbeta}}
+\renewcommand*{\gamma}{\TextOrMath{\textgamma}{\mathgamma}}
+\renewcommand*{\delta}{\TextOrMath{\textdelta}{\mathdelta}}
+\renewcommand*{\epsilon}{\TextOrMath{\textepsilon}{\mathepsilon}}
+\renewcommand*{\zeta}{\TextOrMath{\textzeta}{\mathzeta}}
+\renewcommand*{\eta}{\TextOrMath{\texteta}{\matheta}}
+\renewcommand*{\theta}{\TextOrMath{\texttheta}{\maththeta}}
+\renewcommand*{\iota}{\TextOrMath{\textiota}{\mathiota}}
+\renewcommand*{\kappa}{\TextOrMath{\textkappa}{\mathkappa}}
+\renewcommand*{\lambda}{\TextOrMath{\textlambda}{\mathlambda}}
+\renewcommand*{\mu}{\TextOrMath{\textmu}{\mathmu}}
+\renewcommand*{\nu}{\TextOrMath{\textnu}{\mathnu}}
+\renewcommand*{\xi}{\TextOrMath{\textxi}{\mathxi}}
+\providecommand*{\omicron}{\textomicron}
+\renewcommand*{\pi}{\TextOrMath{\textpi}{\mathpi}}
+\renewcommand*{\rho}{\TextOrMath{\textrho}{\mathrho}}
+\renewcommand*{\sigma}{\TextOrMath{\textsigma}{\mathsigma}}
+\renewcommand*{\varsigma}{\TextOrMath{\textvarsigma}{\mathvarsigma}}
+\providecommand*{\finalsigma}{\varsigma}
+\renewcommand*{\tau}{\TextOrMath{\texttau}{\mathtau}}
+\renewcommand*{\upsilon}{\TextOrMath{\textupsilon}{\mathupsilon}}
+\renewcommand*{\phi}{\TextOrMath{\textphi}{\mathphi}}
+\renewcommand*{\chi}{\TextOrMath{\textchi}{\mathchi}}
+\renewcommand*{\psi}{\TextOrMath{\textpsi}{\mathpsi}}
+\renewcommand*{\omega}{\TextOrMath{\textomega}{\mathomega}}
+</pre>
+<div class="section" id="archaic-letters">
+<h3>Archaic letters</h3>
+<pre class="literal-block">\renewcommand*{\digamma}{\TextOrMath{\textdigamma}{\mathdigamma}} % ϝ
+\providecommand*{\Digamma}{\textDigamma} % Ϝ
+\providecommand*{\stigma}{\textstigma} % ϛ
+\providecommand*{\varstigma}{\textvarstigma} % stigma variant (CB.enc, teubner)
+\providecommand*{\koppa}{\textkoppa} % ϟ (greek small letter koppa)
+\providecommand*{\qoppa}{\textqoppa} % ϙ (archaic koppa)
+\providecommand*{\Qoppa}{\textQoppa} % Ϙ (archaic Koppa)
+\providecommand*{\Stigma}{\textStigma} % Ϛ (in some fonts ϹΤ ligature)
+\providecommand*{\Sampi}{\textSampi} % Ϡ
+\providecommand*{\sampi}{\textsampi} % ϡ
+</pre>
+</div>
+</div>
+<div class="section" id="textcompositecommands-for-the-generic-macros">
+<h2>TextCompositeCommands for the generic macros</h2>
+<p>The NFSS TextComposite mechanism looks for the next token without expanding
+it. In order to let compositions like <tt class="literal"><span class="pre">\ensuregreek{\'\Alpha}</span></tt> or
+<tt class="literal"><span class="pre">\ensuregreek{\&gt;&quot;\alpha}</span></tt> work as expected we define TextComposites with the
+<cite>letter name commands</cite>. (Composition only works if the active font encoding
+is LGR).</p>
+<pre class="literal-block">\ifdefined\XeTeXrevision
+ \input{alphabeta-euenc.def}
+\else\ifdefined\luatexversion
+ \input{alphabeta-euenc.def}
+\else
+ \DeclareTextComposite{\accvaria}{LGR}{\alpha}{128}
+ \DeclareTextComposite{\accdasia}{LGR}{\alpha}{129}
+ \DeclareTextComposite{\accpsili}{LGR}{\alpha}{130}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\alpha}{131}
+ \DeclareTextComposite{\acctonos}{LGR}{\alpha}{136}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\alpha}{137}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\alpha}{138}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\alpha}{139}
+ \DeclareTextComposite{\accperispomeni}{LGR}{\alpha}{144}
+ \DeclareTextComposite{\accdasiaperispomeni}{LGR}{\alpha}{145}
+ \DeclareTextComposite{\accpsiliperispomeni}{LGR}{\alpha}{146}
+ \DeclareTextComposite{\accvaria}{LGR}{\eta}{152}
+ \DeclareTextComposite{\accdasia}{LGR}{\eta}{153}
+ \DeclareTextComposite{\accpsili}{LGR}{\eta}{154}
+ \DeclareTextComposite{\acctonos}{LGR}{\eta}{160}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\eta}{161}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\eta}{162}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\eta}{163}
+ \DeclareTextComposite{\accperispomeni}{LGR}{\eta}{168}
+ \DeclareTextComposite{\accdasiaperispomeni}{LGR}{\eta}{169}
+ \DeclareTextComposite{\accpsiliperispomeni}{LGR}{\eta}{170}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\eta}{171}
+ \DeclareTextComposite{\accvaria}{LGR}{\omega}{176}
+ \DeclareTextComposite{\accdasia}{LGR}{\omega}{177}
+ \DeclareTextComposite{\accpsili}{LGR}{\omega}{178}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\omega}{179}
+ \DeclareTextComposite{\acctonos}{LGR}{\omega}{184}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\omega}{185}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\omega}{186}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\omega}{187}
+ \DeclareTextComposite{\accperispomeni}{LGR}{\omega}{192}
+ \DeclareTextComposite{\accdasiaperispomeni}{LGR}{\omega}{193}
+ \DeclareTextComposite{\accpsiliperispomeni}{LGR}{\omega}{194}
+ \DeclareTextComposite{\accvaria}{LGR}{\iota}{200}
+ \DeclareTextComposite{\accdasia}{LGR}{\iota}{201}
+ \DeclareTextComposite{\accpsili}{LGR}{\iota}{202}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\iota}{203}
+ \DeclareTextComposite{\acctonos}{LGR}{\iota}{208}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\iota}{209}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\iota}{210}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\iota}{211}
+ \DeclareTextComposite{\accperispomeni}{LGR}{\iota}{216}
+ \DeclareTextComposite{\accdasiaperispomeni}{LGR}{\iota}{217}
+ \DeclareTextComposite{\accpsiliperispomeni}{LGR}{\iota}{218}
+ \DeclareTextComposite{\accdialytika}{LGR}{\iota}{240}
+ \DeclareTextComposite{\accdialytikavaria}{LGR}{\iota}{241}
+ \DeclareTextComposite{\accdialytikatonos}{LGR}{\iota}{242}
+ \DeclareTextComposite{\accdialytikaperispomeni}{LGR}{\iota}{243}
+ \DeclareTextComposite{\accvaria}{LGR}{\upsilon}{204}
+ \DeclareTextComposite{\accdasia}{LGR}{\upsilon}{205}
+ \DeclareTextComposite{\accpsili}{LGR}{\upsilon}{206}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\upsilon}{207}
+ \DeclareTextComposite{\acctonos}{LGR}{\upsilon}{212}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\upsilon}{213}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\upsilon}{214}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\upsilon}{215}
+ \DeclareTextComposite{\accperispomeni}{LGR}{\upsilon}{220}
+ \DeclareTextComposite{\accdasiaperispomeni}{LGR}{\upsilon}{221}
+ \DeclareTextComposite{\accpsiliperispomeni}{LGR}{\upsilon}{222}
+ \DeclareTextComposite{\accdialytika}{LGR}{\upsilon}{244}
+ \DeclareTextComposite{\accdialytikavaria}{LGR}{\upsilon}{245}
+ \DeclareTextComposite{\accdialytikatonos}{LGR}{\upsilon}{246}
+ \DeclareTextComposite{\accdialytikaperispomeni}{LGR}{\upsilon}{247}
+ \DeclareTextComposite{\accvaria}{LGR}{\epsilon}{224}
+ \DeclareTextComposite{\accdasia}{LGR}{\epsilon}{225}
+ \DeclareTextComposite{\accpsili}{LGR}{\epsilon}{226}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\epsilon}{227}
+ \DeclareTextComposite{\acctonos}{LGR}{\epsilon}{232}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\epsilon}{233}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\epsilon}{234}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\epsilon}{235}
+ \DeclareTextComposite{\accvaria}{LGR}{\omicron}{228}
+ \DeclareTextComposite{\accdasia}{LGR}{\omicron}{229}
+ \DeclareTextComposite{\accpsili}{LGR}{\omicron}{230}
+ \DeclareTextComposite{\accdasiavaria}{LGR}{\omicron}{231}
+ \DeclareTextComposite{\acctonos}{LGR}{\omicron}{236}
+ \DeclareTextComposite{\accdasiaoxia}{LGR}{\omicron}{237}
+ \DeclareTextComposite{\accpsilioxia}{LGR}{\omicron}{238}
+ \DeclareTextComposite{\accpsilivaria}{LGR}{\omicron}{239}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Alpha}{&lt;A}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Alpha}{&lt;`A}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Alpha}{&lt;'A}
+ \DeclareTextCompositeCommand{\accdasiaperispomeni}{LGR}{\Alpha}{&lt;\char126A}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Alpha}{&gt;A}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Alpha}{&gt;`A}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Alpha}{&gt;'A}
+ \DeclareTextCompositeCommand{\accpsiliperispomeni}{LGR}{\Alpha}{&gt;\char126A}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Alpha}{'A}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Alpha}{`A}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Epsilon}{&lt;E}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Epsilon}{&lt;'E}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Epsilon}{&lt;`E}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Epsilon}{&gt;E}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Epsilon}{&gt;'E}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Epsilon}{&gt;`E}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Epsilon}{'E}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Epsilon}{`E}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Eta}{&lt;H}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Eta}{&lt;`H}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Eta}{&lt;'H}
+ \DeclareTextCompositeCommand{\accdasiaperispomeni}{LGR}{\Eta}{&lt;\char126H}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Eta}{&gt;H}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Eta}{&gt;`H}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Eta}{&gt;'H}
+ \DeclareTextCompositeCommand{\accpsiliperispomeni}{LGR}{\Eta}{&gt;\char126H}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Eta}{'H}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Eta}{`H}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Iota}{&lt;I}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Iota}{&lt;`I}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Iota}{&lt;'I}
+ \DeclareTextCompositeCommand{\accdasiaperispomeni}{LGR}{\Iota}{&lt;\char126I}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Iota}{&gt;I}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Iota}{&gt;`I}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Iota}{&gt;'I}
+ \DeclareTextCompositeCommand{\accpsiliperispomeni}{LGR}{\Iota}{&gt;\char126I}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Iota}{'I}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Iota}{`I}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Omicron}{&lt;O}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Omicron}{&lt;`O}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Omicron}{&lt;'O}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Omicron}{&gt;O}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Omicron}{&gt;`O}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Omicron}{&gt;'O}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Omicron}{'O}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Omicron}{`O}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Upsilon}{&lt;U}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Upsilon}{&lt;`U}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Upsilon}{&lt;'U}
+ \DeclareTextCompositeCommand{\accdasiaperispomeni}{LGR}{\Upsilon}{&lt;\char126U}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Upsilon}{'U}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Upsilon}{`U}
+ \DeclareTextCompositeCommand{\accdasia}{LGR}{\Omega}{&lt;W}
+ \DeclareTextCompositeCommand{\accdasiavaria}{LGR}{\Omega}{&lt;`W}
+ \DeclareTextCompositeCommand{\accdasiaoxia}{LGR}{\Omega}{&lt;'W}
+ \DeclareTextCompositeCommand{\accdasiaperispomeni}{LGR}{\Omega}{&lt;\char126W}
+ \DeclareTextCompositeCommand{\accpsili}{LGR}{\Omega}{&gt;W}
+ \DeclareTextCompositeCommand{\accpsilivaria}{LGR}{\Omega}{&gt;`W}
+ \DeclareTextCompositeCommand{\accpsilioxia}{LGR}{\Omega}{&gt;'W}
+ \DeclareTextCompositeCommand{\accpsiliperispomeni}{LGR}{\Omega}{&gt;\char126W}
+ \DeclareTextCompositeCommand{\acctonos}{LGR}{\Omega}{'W}
+ \DeclareTextCompositeCommand{\accvaria}{LGR}{\Omega}{`W}
+ \DeclareTextComposite{\accdialytika}{LGR}{\Iota}{219}
+ \DeclareTextComposite{\accdialytika}{LGR}{\Upsilon}{223}
+ \DeclareTextCompositeCommand{\LGR&#64;hiatus}{LGR}{\Alpha}{\LGR&#64;A&#64;hiatus}
+ \DeclareTextCompositeCommand{\LGR&#64;hiatus}{LGR}{\Epsilon}{\LGR&#64;E&#64;hiatus}
+\fi\fi
+</pre>
+</div>
+<div class="section" id="re-definition-for-greek-unicode-input-in-math-mode">
+<h2>Re-definition for Greek Unicode input in math mode</h2>
+<p>Check with <tt class="literal">\ifdefined</tt> for the definition of
+<tt class="literal">\DeclareUnicodeCharacter</tt>. In contrast to <tt class="literal">\&#64;ifdefined</tt>, this works
+without side-effects. It makes, however, the package dependent on the <cite>e-TeX</cite>
+extensions.</p>
+<p>Map Greek characters that are also defined in math mode to the generic
+macros:</p>
+<pre class="literal-block">\ifdefined\DeclareUnicodeCharacter
+ \DeclareUnicodeCharacter{0393}{\Gamma} % Γ
+ \DeclareUnicodeCharacter{0394}{\Delta} % Δ
+ \DeclareUnicodeCharacter{0398}{\Theta} % Θ
+ \DeclareUnicodeCharacter{039B}{\Lambda} % Λ
+ \DeclareUnicodeCharacter{039E}{\Xi} % Ξ
+ \DeclareUnicodeCharacter{03A0}{\Pi} % Π
+ \DeclareUnicodeCharacter{03A3}{\Sigma} % Σ
+ \DeclareUnicodeCharacter{03A5}{\Upsilon} % Υ
+ \DeclareUnicodeCharacter{03A6}{\Phi} % Φ
+ \DeclareUnicodeCharacter{03A8}{\Psi} % Ψ
+ \DeclareUnicodeCharacter{03A9}{\Omega} % Ω
+
+ \DeclareUnicodeCharacter{03B1}{\alpha} % α
+ \DeclareUnicodeCharacter{03B2}{\beta} % β
+ \DeclareUnicodeCharacter{03B3}{\gamma} % γ
+ \DeclareUnicodeCharacter{03B4}{\delta} % δ
+ \DeclareUnicodeCharacter{03B5}{\epsilon} % ε
+ \DeclareUnicodeCharacter{03B6}{\zeta} % ζ
+ \DeclareUnicodeCharacter{03B7}{\eta} % η
+ \DeclareUnicodeCharacter{03B8}{\theta} % θ
+ \DeclareUnicodeCharacter{03B9}{\iota} % ι
+ \DeclareUnicodeCharacter{03BA}{\kappa} % κ
+ \DeclareUnicodeCharacter{03BB}{\lambda} % λ
+ \DeclareUnicodeCharacter{03BC}{\mu} % μ
+ \DeclareUnicodeCharacter{03BD}{\nu} % ν
+ \DeclareUnicodeCharacter{03BE}{\xi} % ξ
+ \DeclareUnicodeCharacter{03C0}{\pi} % π
+ \DeclareUnicodeCharacter{03C1}{\rho} % ρ
+ \DeclareUnicodeCharacter{03C2}{\varsigma} % ς
+ \DeclareUnicodeCharacter{03C3}{\sigma} % σ
+ \DeclareUnicodeCharacter{03C4}{\tau} % τ
+ \DeclareUnicodeCharacter{03C5}{\upsilon} % υ
+ \DeclareUnicodeCharacter{03C6}{\phi} % φ
+ \DeclareUnicodeCharacter{03C7}{\chi} % χ
+ \DeclareUnicodeCharacter{03C8}{\psi} % ψ
+ \DeclareUnicodeCharacter{03C9}{\omega} % ω
+
+ \DeclareUnicodeCharacter{03DD}{\digamma} % ϝ
+\fi
+</pre>
+<pre class="literal-block">} % close the \AtBeginDocument macro
+</pre>
+<!-- References
+- - - - - - - - - - -->
+</div>
+</div>
+</div>
+</body>
+</html>