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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="KSPGetOperators"><H1>KSPGetOperators</H1></A>
Gets the matrix associated with the linear system and a (possibly) different one associated with the preconditioner.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
PetscErrorCode KSPGetOperators(KSP ksp,Mat *Amat,Mat *Pmat)
</PRE>
Collective on <A HREF="../KSP/KSP.html#KSP">KSP</A> and <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>ksp </B> -the <A HREF="../KSP/KSP.html#KSP">KSP</A> context
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Amat </B></TD><TD>- the matrix that defines the linear system
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Pmat </B></TD><TD>- the matrix to be used in constructing the preconditioner, usually the same as Amat.
</TD></TR></TABLE>
<P>
<P>
Notes: DOES NOT increase the reference counts of the matrix, so you should NOT destroy them.
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../KSP/KSP.html#KSP">KSP</A>, set, get, operators, matrix, preconditioner, linear system
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../KSP/KSPSolve.html#KSPSolve">KSPSolve</A>(), <A HREF="../KSP/KSPGetPC.html#KSPGetPC">KSPGetPC</A>(), <A HREF="../PC/PCGetOperators.html#PCGetOperators">PCGetOperators</A>(), <A HREF="../PC/PCSetOperators.html#PCSetOperators">PCSetOperators</A>(), <A HREF="../KSP/KSPSetOperators.html#KSPSetOperators">KSPSetOperators</A>(), <A HREF="../KSP/KSPGetOperatorsSet.html#KSPGetOperatorsSet">KSPGetOperatorsSet</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ksp/ksp/interface/itcreate.c.html#KSPGetOperators">src/ksp/ksp/interface/itcreate.c</A>
<BR><A HREF="./index.html">Index of all KSP 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/ksp/ksp/examples/tutorials/ex25.c.html">src/ksp/ksp/examples/tutorials/ex25.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex34.c.html">src/ksp/ksp/examples/tutorials/ex34.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex42.c.html">src/ksp/ksp/examples/tutorials/ex42.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex45.c.html">src/ksp/ksp/examples/tutorials/ex45.c.html</A><BR>
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