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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="SNESGetPicard"><H1>SNESGetPicard</H1></A>
Returns the context for the Picard iteration
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../SNES/SNESGetPicard.html#SNESGetPicard">SNESGetPicard</A>(<A HREF="../SNES/SNES.html#SNES">SNES</A> snes,<A HREF="../Vec/Vec.html#Vec">Vec</A> *r,<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> (**f)(<A HREF="../SNES/SNES.html#SNES">SNES</A>,<A HREF="../Vec/Vec.html#Vec">Vec</A>,<A HREF="../Vec/Vec.html#Vec">Vec</A>,void*),<A HREF="../Mat/Mat.html#Mat">Mat</A> *Amat, <A HREF="../Mat/Mat.html#Mat">Mat</A> *Pmat, <A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> (**J)(<A HREF="../SNES/SNES.html#SNES">SNES</A>,<A HREF="../Vec/Vec.html#Vec">Vec</A>,<A HREF="../Mat/Mat.html#Mat">Mat</A>,<A HREF="../Mat/Mat.html#Mat">Mat</A>,void*),void **ctx)
</PRE>
Not Collective, but <A HREF="../Vec/Vec.html#Vec">Vec</A> is parallel if <A HREF="../SNES/SNES.html#SNES">SNES</A> is parallel. Collective if <A HREF="../Vec/Vec.html#Vec">Vec</A> is requested, but has not been created yet.
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>snes </B> -the <A HREF="../SNES/SNES.html#SNES">SNES</A> context
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>r </B></TD><TD>- the function (or NULL)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>f </B></TD><TD>- the function (or NULL); see <A HREF="../SNES/SNESFunction.html#SNESFunction">SNESFunction</A> for calling sequence details
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Amat </B></TD><TD>- the matrix used to defined the operation A(x) x - b(x) (or NULL)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Pmat </B></TD><TD>- the matrix from which the preconditioner will be constructed (or NULL)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>J </B></TD><TD>- the function for matrix evaluation (or NULL); see <A HREF="../SNES/SNESJacobianFunction.html#SNESJacobianFunction">SNESJacobianFunction</A> for calling sequence details
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- the function context (or NULL)
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../SNES/SNES.html#SNES">SNES</A>, nonlinear, get, function
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNES/SNESSetPicard.html#SNESSetPicard">SNESSetPicard</A>(), <A HREF="../SNES/SNESGetFunction.html#SNESGetFunction">SNESGetFunction</A>(), <A HREF="../SNES/SNESGetJacobian.html#SNESGetJacobian">SNESGetJacobian</A>(), <A HREF="../SNES/SNESGetDM.html#SNESGetDM">SNESGetDM</A>(), <A HREF="../SNES/SNESFunction.html#SNESFunction">SNESFunction</A>, <A HREF="../SNES/SNESJacobianFunction.html#SNESJacobianFunction">SNESJacobianFunction</A>
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/snes/interface/snes.c.html#SNESGetPicard">src/snes/interface/snes.c</A>
<BR><A HREF="./index.html">Index of all SNES routines</A>
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