tex.math.in.alt
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## tex.math.in.alt

tex.math.in.alt — TeX notation used for equations

## Synopsis

    <xsl:param name="tex.math.in.alt"></xsl:param>

## Description

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

Preferred way for including TeX alternative of math is inside of `textobject` element. Eg.:

    <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>

If you are using `graphic` element, you can store TeX inside `alt` element:

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

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.

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

### Warning

This feature is useful for print/PDF output only if you use the obsolete and now unsupported PassiveTeX XSL-FO engine.

## Related Parameters

`tex.math.delims`, `passivetex.extensions`, `tex.math.file`

## More information

For how-to documentation on embedding TeX equations and generating output from them, see DocBook XSL: TCG, DBTeXMath.

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