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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatCopy"><H1>MatCopy</H1></A>
Copys a matrix to another matrix.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatCopy(Mat A,Mat B,MatStructure str)
</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>str </B></TD><TD>- SAME_NONZERO_PATTERN or DIFFERENT_NONZERO_PATTERN
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>B </B> -where the copy is put
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
If you use SAME_NONZERO_PATTERN then the two matrices had better have the
same nonzero pattern or the routine will crash.
<P>
<A HREF="../Mat/MatCopy.html#MatCopy">MatCopy</A>() copies the matrix entries of a matrix to another existing
matrix (after first zeroing the second matrix). A related routine is
<A HREF="../Mat/MatConvert.html#MatConvert">MatConvert</A>(), which first creates a new matrix and then copies the data.
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatConvert.html#MatConvert">MatConvert</A>(), <A HREF="../Mat/MatDuplicate.html#MatDuplicate">MatDuplicate</A>()
<BR>
<P>
<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#MatCopy">src/mat/interface/matrix.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/examples/tutorials/ex53.c.html">src/snes/examples/tutorials/ex53.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex54.c.html">src/snes/examples/tutorials/ex54.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex55.c.html">src/snes/examples/tutorials/ex55.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex60.c.html">src/snes/examples/tutorials/ex60.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex61.c.html">src/snes/examples/tutorials/ex61.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex63.c.html">src/snes/examples/tutorials/ex63.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex633d_db.c.html">src/snes/examples/tutorials/ex633d_db.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex64.c.html">src/snes/examples/tutorials/ex64.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex65.c.html">src/snes/examples/tutorials/ex65.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex23.c.html">src/ts/examples/tutorials/ex23.c.html</A><BR>
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