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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatShellGetContext"><H1>MatShellGetContext</H1></A>
Returns the user-provided context associated with a shell matrix.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatShellGetContext(Mat mat,void *ctx)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>mat </B> -the matrix, should have been created with <A HREF="../Mat/MatCreateShell.html#MatCreateShell">MatCreateShell</A>()
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>ctx </B> -the user provided context
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This routine is intended for use within various shell matrix routines,
as set with <A HREF="../Mat/MatShellSetOperation.html#MatShellSetOperation">MatShellSetOperation</A>().
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
matrix, shell, get, context
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatCreateShell.html#MatCreateShell">MatCreateShell</A>(), <A HREF="../Mat/MatShellSetOperation.html#MatShellSetOperation">MatShellSetOperation</A>(), <A HREF="../Mat/MatShellSetContext.html#MatShellSetContext">MatShellSetContext</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/shell/shell.c.html#MatShellGetContext">src/mat/impls/shell/shell.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/ex12.c.html">src/snes/examples/tutorials/ex12.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex31.c.html">src/snes/examples/tutorials/ex31.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex62.c.html">src/snes/examples/tutorials/ex62.c.html</A><BR>
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