<refentry xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          id="tex.math.in.alt">
<refmeta>
<refentrytitle>tex.math.in.alt</refentrytitle>
<refmiscinfo role="type">string</refmiscinfo>
</refmeta>
<refnamediv>
<refname>tex.math.in.alt</refname>
<refpurpose>TeX notation used for equations</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment id='tex.math.in.alt.frag'>
<xsl:param name="tex.math.in.alt" select="''"/>
</src:fragment>
</refsynopsisdiv>

<refsect1><title>Description</title>

<para>If you want type math directly in TeX notation in equations,
this parameter specifies notation used. Currently are supported two
values -- <literal>plain</literal> and <literal>latex</literal>. Empty
value means that you are not using TeX math at all.</para>

<para>Preferred way for including TeX alternative of math is inside of
<sgmltag>textobject</sgmltag> element. Eg.:</para>

<programlisting><![CDATA[<inlineequation>
<inlinemediaobject>
<imageobject>
<imagedata fileref="eq1.gif"/>
</imageobject>
<textobject><phrase>E=mc squared</phrase></textobject>
<textobject role="tex"><phrase>E=mc^2</phrase></textobject>
</inlinemediaobject>
</inlineequation>]]></programlisting>

<para>If you are using <sgmltag>graphic</sgmltag> element, you can
store TeX inside <sgmltag>alt</sgmltag> element:</para>

<programlisting><![CDATA[<inlineequation>
<alt role="tex">a^2+b^2=c^2</alt>
<graphic fileref="a2b2c2.gif"/>  
</inlineequation>]]></programlisting>

<para>If you want use this feature, you should process your FO with
PassiveTeX, which only supports TeX math notation. When calling
stylsheet, don't forget to specify also
passivetex.extensions=1.</para>

<para>If you want equations in HTML, just process generated file
<filename>tex-math-equations.tex</filename> by TeX or LaTeX. Then run
dvi2bitmap program on result DVI file. You will get images for
equations in your document.</para>

</refsect1>
</refentry>
