" BORDER="0"
 SRC="img110.gif"
 ALT="\begin{eqnarray*}
E_{XC} \ &amp;=&amp; \ a_0 E^{\rm HF}_X + (1-a_0) E^{\rm Slater}_{X} +...
...\\
&amp; &amp;{\rm where } \\
a_0 &amp;=&amp; 0.20, \ a_X = 0.72, \ a_C = 0.81
\end{eqnarray*}">
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<H2><A NAME="SECTION001333000000000000000">
11.3.3 Meta-GGA Functionals</A>
</H2>

<P>
One way to calculate meta-GGA energies is to use
 orbitals and densities 
from fully self-consistent GGA or LDA 