
</LI>
<LI>convergence of the orbital gradient; this is defined to be when the
  DIIS error vector becomes less than some value (the default is
  5e-4).  This value can be modified using the key word,
<PRE>
  CONVERGENCE gradient &lt;real gradient default 5e-4&gt;
</PRE>
</LI>
</UL>

<P>
The default optimization strategy is to immediately begin direct
inversion of the iterative subspace<A NAME="tex2html31"
  HREF="footnode.html#foot3430"><SUP>11.3</SUP></A>.  Damping is also initiated (using 70% of the prev