<?xml version="1.0" encoding="utf-8"?>
<book xmlns="http://docbook.org/ns/docbook" version="5.0">
<title>Unit test: formalgroup.004</title>

<chapter>
<title>Testing formal group enumeration</title>

<section>
<title>With inherited numeration</title>

<formalgroup pgwide="1">
<title>Euler’s identity and mass-energy equivalence</title>

<equation>
  <title>Euler’s identity</title>
  <mathphrase>e<superscript>π<emphasis>i</emphasis></superscript> + 1 = 0</mathphrase>
</equation>

<equation>
  <title>Mass-energy equivalence</title>
  <mediaobject>
    <imageobject>
      <imagedata fileref="../media/emc2.png"/>
    </imageobject>
    <textobject>
      <phrase>E=mc^2</phrase>
    </textobject>
  </mediaobject>
</equation>

</formalgroup>

<para>This group isn’t “page wide”.</para>

<formalgroup>
<title>Mass-energy equivalence and Euler’s identity</title>

<equation>
  <title>Mass-energy equivalence</title>
  <mediaobject>
    <imageobject>
      <imagedata fileref="../media/emc2.png"/>
    </imageobject>
    <textobject>
      <phrase>E=mc^2</phrase>
    </textobject>
  </mediaobject>
</equation>

<equation>
  <title>Euler’s identity</title>
  <mathphrase>e<superscript>π<emphasis>i</emphasis></superscript> + 1 = 0</mathphrase>
</equation>

</formalgroup>

</section>
</chapter>
</book>
