ode">n</code> should be on the
   order of the expected number of elements that will be in
   the table.  The table grows as needed, so <code class="code">n</code> is just an
   initial guess.
<p>

   The optional <code class="code">random</code> parameter (a boolean) controls whether
   the internal organization of the hash table is randomized at each
   execution of <code class="code"><span class="constructor">Hashtbl</span>.create</code> or deterministic over all executions.
</p><p>

   A hash table that