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<A NAME="MatZeroEntries"><H1>MatZeroEntries</H1></A>
Zeros all entries of a matrix. For sparse matrices this routine retains the old nonzero structure.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
int MatZeroEntries(Mat mat)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>mat </B> -the matrix
<br>
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatZeroRows.html#MatZeroRows">MatZeroRows</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matrix.c.html#MatZeroEntries">src/mat/interface/matrix.c</A>
<BR><A HREF="./index.html">Index of all Mat routines</A>
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<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/examples/tutorials/ex5.c.html">src/ksp/examples/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/ksp/examples/tutorials/ex9.c.html">src/ksp/examples/tutorials/ex9.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/util2.c.html">src/ts/examples/tutorials/util2.c.html</A><BR>
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