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<title>alphabeta: Greek symbols in text and math</title>
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div.hint, div.important, div.note, div.tip, div.warning {
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<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 1.3 of this license or any later version.</p>
</dd>
<dt>Identification</dt>
<dd><pre class="literal-block">\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{alphabeta}
[2012/06/26 v0.1 macros for Greek letters in text and math]
</pre>
<p>This package is part of the <a class="reference external" href="http://www.ctan.org/pkg/lgrx">lgrx</a> bundle.</p>
</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.</p>
</div>
<dl class="docutils">
<dt>Changelog:</dt>
<dd><table class="borderless">
<colgroup>
<col width="14%" />
<col width="7%" />
<col width="79%" />
</colgroup>
<tbody valign="top">
<tr><td><p>2012-06-26</p></td>
<td><p>0.1</p></td>
<td><p>initial version</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>The <cite>textalpha</cite> package provides a set of macros that can be used to
access Greek symbols from a font in LGR encoding (e.g. the <a class="reference external" href="http://www.ctan.org/pkg/cbgreek-complete">CB fonts</a>)
without the need for an explicite font-encoding switch under the names
<tt class="literal">\textalpha, \textbeta</tt>, ..., <tt class="literal">\textOmega</tt>.</p>
<p>With this package, the math macros are redefined to work both, text and
math, so that single Greek letters or simple words can be written with the
established command names.</p>
<dl class="docutils">
<dt>Attention</dt>
<dd><p>While the macros work reasonably well for single letters, the automatic
font-encoding switches behind the doors interferes with the kerning
between the 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>, setting
the language to either <tt class="literal">greek</tt> or <tt class="literal">polutonikogreek</tt> or wrapped in the
provided <tt class="literal">\TextGreek</tt> macro.</p>
</dd>
</dl>
</div>
<div class="section" id="implementation">
<h1>Implementation</h1>
<p>This package extends the <cite>textalpha</cite> package:</p>
<pre class="literal-block">\RequirePackage{textalpha}
</pre>
<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 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
</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 identic 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, but we define an alias to the corrsponding <tt class="literal"><span class="pre">\text...</span></tt>
command.</p>
<pre class="literal-block">\newcommand{\Alpha}{\textAlpha}
\newcommand{\Beta}{\textBeta}
\renewcommand{\Gamma}{\TextOrMath{\textGamma}{\mathGamma}}
\renewcommand{\Delta}{\TextOrMath{\textDelta}{\mathDelta}}
\newcommand{\Epsilon}{\textEpsilon}
\newcommand{\Zeta}{\textZeta}
\newcommand{\Eta}{\textEta}
\renewcommand{\Theta}{\TextOrMath{\textTheta}{\mathTheta}}
\newcommand{\Iota}{\textIota}
\newcommand{\Kappa}{\textKappa}
\renewcommand{\Lambda}{\TextOrMath{\textLambda}{\mathLambda}}
\newcommand{\Mu}{\textMu}
\newcommand{\Nu}{\textNu}
\renewcommand{\Xi}{\TextOrMath{\textXi}{\mathXi}}
\newcommand{\Omicron}{\textOmicron}
\renewcommand{\Pi}{\TextOrMath{\textPi}{\mathPi}}
\newcommand{\Rho}{\textRho}
\renewcommand{\Sigma}{\TextOrMath{\textSigma}{\mathSigma}}
\newcommand{\Tau}{\textTau}
\renewcommand{\Upsilon}{\TextOrMath{\textUpsilon}{\mathUpsilon}}
\renewcommand{\Phi}{\TextOrMath{\textPhi}{\mathPhi}}
\newcommand{\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}}
\newcommand{\omicron}{\textomicron}
\renewcommand{\pi}{\TextOrMath{\textpi}{\mathpi}}
\renewcommand{\rho}{\TextOrMath{\textrho}{\mathrho}}
\renewcommand{\sigma}{\TextOrMath{\textsigma}{\mathsigma}}
\renewcommand{\varsigma}{\TextOrMath{\textvarsigma}{\mathvarsigma}}
\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>
<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">\TextGreek{\'\Alpha}</span></tt> or
<tt class="literal"><span class="pre">\TextGreek{\>"\alpha}</span></tt> work as expected we define TextComposites with the
<cite>letter name commands</cite> (even so composition only works if the font encoding
is LGR).</p>
<pre class="literal-block">\DeclareTextComposite{\Varia}{LGR}{\alpha}{128}
\DeclareTextComposite{\Dasia}{LGR}{\alpha}{129}
\DeclareTextComposite{\Psili}{LGR}{\alpha}{130}
\DeclareTextComposite{\DasiaVaria}{LGR}{\alpha}{131}
\DeclareTextComposite{\Tonos}{LGR}{\alpha}{136}
\DeclareTextComposite{\DasiaOxia}{LGR}{\alpha}{137}
\DeclareTextComposite{\PsiliOxia}{LGR}{\alpha}{138}
\DeclareTextComposite{\PsiliVaria}{LGR}{\alpha}{139}
\DeclareTextComposite{\Perispomeni}{LGR}{\alpha}{144}
\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\alpha}{145}
\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\alpha}{146}
\DeclareTextComposite{\Varia}{LGR}{\eta}{152}
\DeclareTextComposite{\Dasia}{LGR}{\eta}{153}
\DeclareTextComposite{\Psili}{LGR}{\eta}{154}
\DeclareTextComposite{\Tonos}{LGR}{\eta}{160}
\DeclareTextComposite{\DasiaOxia}{LGR}{\eta}{161}
\DeclareTextComposite{\PsiliOxia}{LGR}{\eta}{162}
\DeclareTextComposite{\DasiaVaria}{LGR}{\eta}{163}
\DeclareTextComposite{\Perispomeni}{LGR}{\eta}{168}
\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\eta}{169}
\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\eta}{170}
\DeclareTextComposite{\PsiliVaria}{LGR}{\eta}{171}
\DeclareTextComposite{\Varia}{LGR}{\omega}{176}
\DeclareTextComposite{\Dasia}{LGR}{\omega}{177}
\DeclareTextComposite{\Psili}{LGR}{\omega}{178}
\DeclareTextComposite{\DasiaVaria}{LGR}{\omega}{179}
\DeclareTextComposite{\Tonos}{LGR}{\omega}{184}
\DeclareTextComposite{\DasiaOxia}{LGR}{\omega}{185}
\DeclareTextComposite{\PsiliOxia}{LGR}{\omega}{186}
\DeclareTextComposite{\PsiliVaria}{LGR}{\omega}{187}
\DeclareTextComposite{\Perispomeni}{LGR}{\omega}{192}
\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\omega}{193}
\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\omega}{194}
\DeclareTextComposite{\Varia}{LGR}{\iota}{200}
\DeclareTextComposite{\Dasia}{LGR}{\iota}{201}
\DeclareTextComposite{\Psili}{LGR}{\iota}{202}
\DeclareTextComposite{\DasiaVaria}{LGR}{\iota}{203}
\DeclareTextComposite{\Tonos}{LGR}{\iota}{208}
\DeclareTextComposite{\DasiaOxia}{LGR}{\iota}{209}
\DeclareTextComposite{\PsiliOxia}{LGR}{\iota}{210}
\DeclareTextComposite{\PsiliVaria}{LGR}{\iota}{211}
\DeclareTextComposite{\Perispomeni}{LGR}{\iota}{216}
\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\iota}{217}
\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\iota}{218}
\DeclareTextComposite{\Dialytika}{LGR}{\iota}{240}
\DeclareTextComposite{\DialytikaVaria}{LGR}{\iota}{241}
\DeclareTextComposite{\DialytikaTonos}{LGR}{\iota}{242}
\DeclareTextComposite{\DialytikaPerispomeni}{LGR}{\iota}{243}
\DeclareTextComposite{\Varia}{LGR}{\upsilon}{204}
\DeclareTextComposite{\Dasia}{LGR}{\upsilon}{205}
\DeclareTextComposite{\Psili}{LGR}{\upsilon}{206}
\DeclareTextComposite{\DasiaVaria}{LGR}{\upsilon}{207}
\DeclareTextComposite{\Tonos}{LGR}{\upsilon}{212}
\DeclareTextComposite{\DasiaOxia}{LGR}{\upsilon}{213}
\DeclareTextComposite{\PsiliOxia}{LGR}{\upsilon}{214}
\DeclareTextComposite{\PsiliVaria}{LGR}{\upsilon}{215}
\DeclareTextComposite{\Perispomeni}{LGR}{\upsilon}{220}
\DeclareTextComposite{\DasiaPerispomeni}{LGR}{\upsilon}{221}
\DeclareTextComposite{\PsiliPerispomeni}{LGR}{\upsilon}{222}
\DeclareTextComposite{\Dialytika}{LGR}{\upsilon}{244}
\DeclareTextComposite{\DialytikaVaria}{LGR}{\upsilon}{245}
\DeclareTextComposite{\DialytikaTonos}{LGR}{\upsilon}{246}
\DeclareTextComposite{\DialytikaPerispomeni}{LGR}{\upsilon}{247}
\DeclareTextComposite{\Varia}{LGR}{\epsilon}{224}
\DeclareTextComposite{\Dasia}{LGR}{\epsilon}{225}
\DeclareTextComposite{\Psili}{LGR}{\epsilon}{226}
\DeclareTextComposite{\DasiaVaria}{LGR}{\epsilon}{227}
\DeclareTextComposite{\Tonos}{LGR}{\epsilon}{232}
\DeclareTextComposite{\DasiaOxia}{LGR}{\epsilon}{233}
\DeclareTextComposite{\PsiliOxia}{LGR}{\epsilon}{234}
\DeclareTextComposite{\PsiliVaria}{LGR}{\epsilon}{235}
\DeclareTextComposite{\Varia}{LGR}{\omicron}{228}
\DeclareTextComposite{\Dasia}{LGR}{\omicron}{229}
\DeclareTextComposite{\Psili}{LGR}{\omicron}{230}
\DeclareTextComposite{\DasiaVaria}{LGR}{\omicron}{231}
\DeclareTextComposite{\Tonos}{LGR}{\omicron}{236}
\DeclareTextComposite{\DasiaOxia}{LGR}{\omicron}{237}
\DeclareTextComposite{\PsiliOxia}{LGR}{\omicron}{238}
\DeclareTextComposite{\PsiliVaria}{LGR}{\omicron}{239}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Alpha}{<A}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Alpha}{<`A}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Alpha}{<'A}
\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Alpha}{<\char126A}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Alpha}{>A}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Alpha}{>`A}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Alpha}{>'A}
\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Alpha}{>\char126A}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Alpha}{'A}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Alpha}{`A}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Epsilon}{<E}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Epsilon}{<'E}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Epsilon}{<`E}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Epsilon}{>E}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Epsilon}{>'E}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Epsilon}{>`E}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Epsilon}{'E}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Epsilon}{`E}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Eta}{<H}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Eta}{<`H}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Eta}{<'H}
\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Eta}{<\char126H}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Eta}{>H}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Eta}{>`H}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Eta}{>'H}
\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Eta}{>\char126H}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Eta}{'H}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Eta}{`H}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Iota}{<I}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Iota}{<`I}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Iota}{<'I}
\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Iota}{<\char126I}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Iota}{>I}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Iota}{>`I}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Iota}{>'I}
\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Iota}{>\char126I}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Iota}{'I}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Iota}{`I}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Omicron}{<O}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Omicron}{<`O}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Omicron}{<'O}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Omicron}{>O}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Omicron}{>`O}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Omicron}{>'O}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Omicron}{'O}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Omicron}{`O}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Upsilon}{<U}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Upsilon}{<`U}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Upsilon}{<'U}
\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Upsilon}{<\char126U}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Upsilon}{'U}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Upsilon}{`U}
\DeclareTextCompositeCommand{\Dasia}{LGR}{\Omega}{<W}
\DeclareTextCompositeCommand{\DasiaVaria}{LGR}{\Omega}{<`W}
\DeclareTextCompositeCommand{\DasiaOxia}{LGR}{\Omega}{<'W}
\DeclareTextCompositeCommand{\DasiaPerispomeni}{LGR}{\Omega}{<\char126W}
\DeclareTextCompositeCommand{\Psili}{LGR}{\Omega}{>W}
\DeclareTextCompositeCommand{\PsiliVaria}{LGR}{\Omega}{>`W}
\DeclareTextCompositeCommand{\PsiliOxia}{LGR}{\Omega}{>'W}
\DeclareTextCompositeCommand{\PsiliPerispomeni}{LGR}{\Omega}{>\char126W}
\DeclareTextCompositeCommand{\Tonos}{LGR}{\Omega}{'W}
\DeclareTextCompositeCommand{\Varia}{LGR}{\Omega}{`W}
\DeclareTextComposite{\Dialytika}{LGR}{\Iota}{219}
\DeclareTextComposite{\Dialytika}{LGR}{\Upsilon}{223}
\DeclareTextCompositeCommand{\@hiatus}{LGR}{\Alpha}{\A@hiatus}
\DeclareTextCompositeCommand{\@hiatus}{LGR}{\Epsilon}{\E@hiatus}
</pre>
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