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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="TSEvaluateWLTE"><H1>TSEvaluateWLTE</H1></A>
Evaluate the weighted local truncation error norm at the end of a time step with a given order of accuracy.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
PetscErrorCode TSEvaluateWLTE(TS ts,NormType wnormtype,PetscInt *order,PetscReal *wlte)
</PRE>
Collective on <A HREF="../TS/TS.html#TS">TS</A>
<P>
<H3><FONT COLOR="#CC3333">Input Arguments</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ts </B></TD><TD>- time stepping context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>wnormtype </B></TD><TD>- norm type, either <A HREF="../Vec/NORM_2.html#NORM_2">NORM_2</A> or <A HREF="../Vec/NORM_INFINITY.html#NORM_INFINITY">NORM_INFINITY</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>order </B></TD><TD>- optional, desired order for the error evaluation or <A HREF="../Sys/PETSC_DECIDE.html#PETSC_DECIDE">PETSC_DECIDE</A>
</TD></TR></TABLE>
<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>order </B></TD><TD>- optional, the actual order of the error evaluation
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>wlte </B></TD><TD>- the weighted local truncation error norm
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
If the timestepper cannot evaluate the error in a particular step
(eg. in the first step or restart steps after event handling),
this routine returns wlte=-1.0 .
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSStep.html#TSStep">TSStep</A>(), <A HREF="../TS/TSAdapt.html#TSAdapt">TSAdapt</A>, <A HREF="../TS/TSErrorWeightedNorm.html#TSErrorWeightedNorm">TSErrorWeightedNorm</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ts/interface/ts.c.html#TSEvaluateWLTE">src/ts/interface/ts.c</A>
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