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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="DMSNESGetObjective"><H1>DMSNESGetObjective</H1></A>
get <A HREF="../SNES/SNES.html#SNES">SNES</A> objective evaluation function
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
#include "petscdm.h"
PetscErrorCode DMSNESGetObjective(DM dm,PetscErrorCode (**obj)(SNES,Vec,PetscReal*,void*),void **ctx)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Argument</FONT></H3>
<DT><B>dm </B> -<A HREF="../DM/DM.html#DM">DM</A> to be used with <A HREF="../SNES/SNES.html#SNES">SNES</A>
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Arguments</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>obj</B></TD><TD>- residual evaluation function; see <A HREF="../SNES/SNESObjectiveFunction.html#SNESObjectiveFunction">SNESObjectiveFunction</A> for details
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- context for residual evaluation
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
<A HREF="../SNES/SNESGetFunction.html#SNESGetFunction">SNESGetFunction</A>() is normally used, but it calls this function internally because the user context is actually
associated with the <A HREF="../DM/DM.html#DM">DM</A>.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
DMSNESSetContext(), <A HREF="../SNES/DMSNESSetObjective.html#DMSNESSetObjective">DMSNESSetObjective</A>(), <A HREF="../SNES/SNESSetFunction.html#SNESSetFunction">SNESSetFunction</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/utils/dmsnes.c.html#DMSNESGetObjective">src/snes/utils/dmsnes.c</A>
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