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<A NAME="MatPtAPNumeric"><H1>MatPtAPNumeric</H1></A>
Computes the matrix projection C = P^T * A * P
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode PETSCMAT_DLLEXPORT MatPtAPNumeric(Mat A,Mat P,Mat C)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>A </B></TD><TD>- the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>P </B></TD><TD>- the projection matrix
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>C </B> -the product matrix
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
C must have been created by calling <A HREF="../Mat/MatPtAPSymbolic.html#MatPtAPSymbolic">MatPtAPSymbolic</A> and must be destroyed by
the user using MatDeatroy().
<P>
This routine is currently only implemented for pairs of AIJ matrices and classes
which inherit from AIJ. C will be of type <A HREF="../Mat/MATAIJ.html#MATAIJ">MATAIJ</A>.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatPtAP.html#MatPtAP">MatPtAP</A>(), <A HREF="../Mat/MatPtAPSymbolic.html#MatPtAPSymbolic">MatPtAPSymbolic</A>(), <A HREF="../Mat/MatMatMultNumeric.html#MatMatMultNumeric">MatMatMultNumeric</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matrix.c.html#MatPtAPNumeric">src/mat/interface/matrix.c</A>
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