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<A NAME="MatSNESMFGetH"><H1>MatSNESMFGetH</H1></A>
Gets the last value that was used as the differencing parameter.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
int MatSNESMFGetH(Mat mat,PetscScalar *h)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>mat </B> -the matrix obtained with <A HREF="../SNESMF/MatCreateSNESMF.html#MatCreateSNESMF">MatCreateSNESMF</A>()
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Paramter</FONT></H3>
<DT><B>h </B> -the differencing step <A HREF="../Sys/size.html#size">size</A>
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../SNES/SNES.html#SNES">SNES</A>, matrix-free, parameters
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNESMF/MatCreateSNESMF.html#MatCreateSNESMF">MatCreateSNESMF</A>(),<A HREF="../SNESMF/MatSNESMFSetHHistory.html#MatSNESMFSetHHistory">MatSNESMFSetHHistory</A>(),
<BR><A HREF="../SNESMF/MatSNESMFResetHHistory.html#MatSNESMFResetHHistory">MatSNESMFResetHHistory</A>(),MatSNESMFKSPMonitor()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/mf/snesmfj.c.html#MatSNESMFGetH">src/snes/mf/snesmfj.c</A>
<BR><A HREF="./index.html">Index of all SNESMF routines</A>
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