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<card id="card1" title="MathML - Page 21 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=MathML&amp;p=20">1.Previous</a><br />
<a accesskey="3" href="page.php?w=MathML&amp;p=22">3.Next</a>
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<p>and language-independent Wikidata items.</p>

<p><big> Example </big></p>
<p>The well-known <a href="page.php?w=quadratic_formula">quadratic formula</a> could be represented in Presentation MathML as an expression tree made up from layout elements like  or :</p>

<p><syntaxhighlight lang="xml"></syntaxhighlight></p>

<p></p>

<p>This example uses the  element, which can be used to embed a semantic annotation in non-XML format, for example to store the formula in the format used by an equation editor such as <a href="page.php?w=StarMath">StarMath</a> or</p><p>
<a accesskey="1" href="page.php?w=MathML&amp;p=20">1.Previous</a><br />
<a accesskey="3" href="page.php?w=MathML&amp;p=22">3.Next</a>
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<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

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