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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatMultAdd"><H1>MatMultAdd</H1></A>
Computes v3 = v2 + A * v1.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatMultAdd(Mat mat,Vec v1,Vec v2,Vec v3)
</PRE>
Neighbor-wise Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A> and <A HREF="../Vec/Vec.html#Vec">Vec</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>mat </B></TD><TD>- the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>v1, v2 </B></TD><TD>- the vectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>v3 </B> -the result
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The vectors v1 and v3 cannot be the same. I.e., one cannot
call <A HREF="../Mat/MatMultAdd.html#MatMultAdd">MatMultAdd</A>(A,v1,v2,v1).
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatMultTranspose.html#MatMultTranspose">MatMultTranspose</A>(), <A HREF="../Mat/MatMult.html#MatMult">MatMult</A>(), <A HREF="../Mat/MatMultTransposeAdd.html#MatMultTransposeAdd">MatMultTransposeAdd</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matrix.c.html#MatMultAdd">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/mat/examples/tutorials/ex2.c.html">src/mat/examples/tutorials/ex2.c.html</A><BR>
<A HREF="../../../src/mat/examples/tutorials/ex9.c.html">src/mat/examples/tutorials/ex9.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/snes/examples/tutorials/ex70.c.html">src/snes/examples/tutorials/ex70.c.html</A><BR>
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