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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="SNESLineSearchGetVIFunctions"><H1>SNESLineSearchGetVIFunctions</H1></A>
Sets VI-specific functions for line search computation.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
extern PetscErrorCode SNESLineSearchGetVIFunctions(SNESLineSearch linesearch, SNESLineSearchVIProjectFunc *projectfunc, SNESLineSearchVINormFunc *normfunc)
</PRE>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>snes </B> -nonlinear context obtained from <A HREF="../SNES/SNESCreate.html#SNESCreate">SNESCreate</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>projectfunc </B></TD><TD>- function for projecting the function to the bounds
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>normfunc </B></TD><TD>- function for computing the norm of an active set
</TD></TR></TABLE>
<P>
Logically Collective on <A HREF="../SNES/SNES.html#SNES">SNES</A>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../SNES/SNES.html#SNES">SNES</A>, line search, VI, nonlinear, get, line search
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNES/SNESLineSearchSetVIFunctions.html#SNESLineSearchSetVIFunctions">SNESLineSearchSetVIFunctions</A>(), <A HREF="../SNES/SNESLineSearchGetPostCheck.html#SNESLineSearchGetPostCheck">SNESLineSearchGetPostCheck</A>(), SNESLineSearchGetPreCheck()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/linesearch/interface/linesearch.c.html#SNESLineSearchGetVIFunctions">src/snes/linesearch/interface/linesearch.c</A>
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