<chapter id="examples">
<title
>Esempi per &step;</title
> 
<para
>- </para>

<sect1 id="first">
<title
>first.step: primo esempio</title>
<para
>- </para>
</sect1>

<sect1 id="brownian">
<title
>brownian.step</title>
<para
>- </para>
</sect1>

<sect1 id="pendulum">
<title
>doublependulum.step</title>
<para
>- </para>
</sect1>

<sect1 id="gas">
<title
>gas.step</title>
<para
>- </para>
</sect1>
</chapter>