<?xml version="1.0" encoding="ISO-8859-1"?>
<slide>
 <title>Adding a function</title>
 <blurb>
  Lets add a simple function to the extension so that we can really use it:
 </blurb>
 <example filename="examples/x3.xml" linenumbers="1" format="xml" fontsize="1em"/>
</slide>

