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<A NAME="MatStructure"><H1>MatStructure</H1></A>
Indicates if the matrix has the same nonzero structure
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
typedef enum {SAME_NONZERO_PATTERN,DIFFERENT_NONZERO_PATTERN,SAME_PRECONDITIONER,SUBSET_NONZERO_PATTERN} MatStructure;
</PRE>
<P>
Any additions/changes here MUST also be made in include/finclude/petscmat.h
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatCopy.html#MatCopy">MatCopy</A>(), <A HREF="../KSP/KSPSetOperators.html#KSPSetOperators">KSPSetOperators</A>(), <A HREF="../PC/PCSetOperators.html#PCSetOperators">PCSetOperators</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/../../include/petscmat.h.html#MatStructure">src/mat/../../include/petscmat.h</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/ex1.c.html">src/snes/examples/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex2.c.html">src/snes/examples/tutorials/ex2.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex3.c.html">src/snes/examples/tutorials/ex3.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex5.c.html">src/snes/examples/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex6.c.html">src/snes/examples/tutorials/ex6.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex14.c.html">src/snes/examples/tutorials/ex14.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex18.c.html">src/snes/examples/tutorials/ex18.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex20.c.html">src/snes/examples/tutorials/ex20.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex26.c.html">src/snes/examples/tutorials/ex26.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex1.c.html">src/ts/examples/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex2.c.html">src/ts/examples/tutorials/ex2.c.html</A><BR>
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