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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="TSErrorWeightedENorm2"><H1>TSErrorWeightedENorm2</H1></A>
compute a weighted 2 error norm based on supplied absolute and relative tolerances
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../TS/TSErrorWeightedENorm2.html#TSErrorWeightedENorm2">TSErrorWeightedENorm2</A>(<A HREF="../TS/TS.html#TS">TS</A> ts,<A HREF="../Vec/Vec.html#Vec">Vec</A> E,<A HREF="../Vec/Vec.html#Vec">Vec</A> U,<A HREF="../Vec/Vec.html#Vec">Vec</A> Y,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> *norm,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> *norma,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> *normr)
</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>E </B></TD><TD>- error vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>U </B></TD><TD>- state vector, usually ts->vec_sol
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Y </B></TD><TD>- state vector, previous time step
</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>norm </B></TD><TD>- weighted norm, a value of 1.0 means that the error matches the tolerances
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>norma </B></TD><TD>- weighted norm based on the absolute tolerance, a value of 1.0 means that the error matches the tolerances
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>normr </B></TD><TD>- weighted norm based on the relative tolerance, a value of 1.0 means that the error matches the tolerances
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSErrorWeightedENorm.html#TSErrorWeightedENorm">TSErrorWeightedENorm</A>(), <A HREF="../TS/TSErrorWeightedENormInfinity.html#TSErrorWeightedENormInfinity">TSErrorWeightedENormInfinity</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ts/interface/ts.c.html#TSErrorWeightedENorm2">src/ts/interface/ts.c</A>
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