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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="TSGetI2Jacobian"><H1>TSGetI2Jacobian</H1></A>
Returns the implicit Jacobian at the present timestep.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../TS/TSGetI2Jacobian.html#TSGetI2Jacobian">TSGetI2Jacobian</A>(<A HREF="../TS/TS.html#TS">TS</A> ts,<A HREF="../Mat/Mat.html#Mat">Mat</A> *J,<A HREF="../Mat/Mat.html#Mat">Mat</A> *P,TSI2Jacobian *jac,void **ctx)
</PRE>
Not Collective, but parallel objects are returned if <A HREF="../TS/TS.html#TS">TS</A> is parallel
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>ts </B> -The <A HREF="../TS/TS.html#TS">TS</A> context obtained from <A HREF="../TS/TSCreate.html#TSCreate">TSCreate</A>()
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>J </B></TD><TD>- The (approximate) Jacobian of F(t,U,U_t,U_tt)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>P </B></TD><TD>- The matrix from which the preconditioner is constructed, often the same as J
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>jac </B></TD><TD>- The function to compute the Jacobian matrices
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- User-defined context for Jacobian evaluation routine
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
You can pass in NULL for any return argument you do not need.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSGetTimeStep.html#TSGetTimeStep">TSGetTimeStep</A>(), TSGetMatrices(), <A HREF="../TS/TSGetTime.html#TSGetTime">TSGetTime</A>(), <A HREF="../TS/TSGetStepNumber.html#TSGetStepNumber">TSGetStepNumber</A>()
<BR>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../TS/TS.html#TS">TS</A>, timestep, get, matrix, Jacobian
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ts/interface/ts.c.html#TSGetI2Jacobian">src/ts/interface/ts.c</A>
<BR><A HREF="./index.html">Index of all TS routines</A>
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