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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatNestSetSubMat"><H1>MatNestSetSubMat</H1></A>
Set a single submatrix in the nest matrix.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatNestSetSubMat(Mat A,PetscInt idxm,PetscInt jdxm,Mat sub)
</PRE>
Logically collective on the submatrix communicator
<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>- nest matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>idxm </B></TD><TD>- index of the matrix within the nest matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>jdxm </B></TD><TD>- index of the matrix within the nest matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>sub </B></TD><TD>- matrix at index idxm,jdxm within the nest matrix
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The new submatrix must have the same size and communicator as that block of the nest.
<P>
This increments the reference count of the submatrix.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatNestSetSubMats.html#MatNestSetSubMats">MatNestSetSubMats</A>(), <A HREF="../Mat/MatNestGetSubMat.html#MatNestGetSubMat">MatNestGetSubMat</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/nest/matnest.c.html#MatNestSetSubMat">src/mat/impls/nest/matnest.c</A>
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