ent-corrected functionals (GCA);
a full list can be found in table <A HREF="node13.html#tablexc">11.1</A>. 

<P>
The Hartree-Fock exact exchange functional, (which has <IMG
 WIDTH="51" HEIGHT="33" ALIGN="MIDDLE" BORDER="0"
 SRC="img106.gif"
 ALT="$O(N^4)$">
computation expense), is invoked by specifying
<PRE>
   XC HFexch
</PRE>

<P>
Note that the user also has the ability to include only the local or
nonlocal contributions of a given functional.  In addition the user
can specify a multiplicative prefactor 