for others to use may want to set <code>packagefile: true</code> to prevent
information from being added to Maxima's information-lists (e.g.
<code><a href="maxima_4.html#values">values</a></code>, <code><a href="maxima_25.html#functions">functions</a></code>) except where necessary when the file is
loaded in.  In this way, the contents of the package will not get in the user's
way when he adds his own data.  Note that this will not solve the problem of
possible name conflicts.  Also note that the flag simpl