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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="PCMAT"><H1>PCMAT</H1></A>
A preconditioner obtained by multiplying by the preconditioner matrix supplied in <A HREF="../PC/PCSetOperators.html#PCSetOperators">PCSetOperators</A>() or <A HREF="../KSP/KSPSetOperators.html#KSPSetOperators">KSPSetOperators</A>() Notes: This one is a little strange. One rarely has an explict matrix that approximates the
inverse of the matrix they wish to solve for.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCCreate.html#PCCreate">PCCreate</A>(), <A HREF="../PC/PCSetType.html#PCSetType">PCSetType</A>(), <A HREF="../PC/PCType.html#PCType">PCType</A> (for list of available types), <A HREF="../PC/PC.html#PC">PC</A>,
<BR><A HREF="../PC/PCSHELL.html#PCSHELL">PCSHELL</A>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ksp/pc/impls/mat/pcmat.c.html#PCMAT">src/ksp/pc/impls/mat/pcmat.c</A>
<BR><A HREF="./index.html">Index of all PC routines</A>
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