1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>TSGetMatrices</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<A NAME="TSGetMatrices"><H1>TSGetMatrices</H1></A>
Returns the matrices Arhs and Alhs at the present timestep, where Alhs(t) U_t = Arhs(t) U.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
PetscErrorCode PETSCTS_DLLEXPORT TSGetMatrices(TS ts,Mat *Arhs,Mat *Alhs,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>Arhs </B></TD><TD>- The right-hand side matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Alhs </B></TD><TD>- The left-hand side matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- User-defined context for matrix evaluation routine
</TD></TR></TABLE>
<P>
Notes: You can pass in <A HREF="../Sys/PETSC_NULL.html#PETSC_NULL">PETSC_NULL</A> for any return argument you do not need.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSSetMatrices.html#TSSetMatrices">TSSetMatrices</A>(), <A HREF="../TS/TSGetTimeStep.html#TSGetTimeStep">TSGetTimeStep</A>(), <A HREF="../TS/TSGetTime.html#TSGetTime">TSGetTime</A>(), <A HREF="../TS/TSGetTimeStepNumber.html#TSGetTimeStepNumber">TSGetTimeStepNumber</A>(), <A HREF="../TS/TSGetRHSJacobian.html#TSGetRHSJacobian">TSGetRHSJacobian</A>()
<BR>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../TS/TS.html#TS">TS</A>, timestep, get, matrix
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ts/interface/ts.c.html#TSGetMatrices">src/ts/interface/ts.c</A>
<BR><A HREF="./index.html">Index of all TS routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ts/examples/tutorials/ex4.c.html">src/ts/examples/tutorials/ex4.c.html</A><BR>
</BODY></HTML>
|