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<H1>IPNormBegin</H1>
Starts a split phase norm computation.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcip.h"
PetscErrorCode IPNormBegin(IP ip,Vec x,PetscReal *norm)
</PRE>
Collective on <A HREF="../IP/IP.html#IP">IP</A> and Vec
<P>
<H3><FONT COLOR="#883300">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ip </B></TD><TD> - the inner product context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x </B></TD><TD> - input vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>norm </B></TD><TD> - where the result will go
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
Each call to <A HREF="../IP/IPNormBegin.html#IPNormBegin">IPNormBegin</A>() should be paired with a call to <A HREF="../IP/IPNormEnd.html#IPNormEnd">IPNormEnd</A>().
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../IP/IPNormEnd.html#IPNormEnd">IPNormEnd</A>(), <A HREF="../IP/IPNorm.html#IPNorm">IPNorm</A>(), <A HREF="../IP/IPInnerProduct.html#IPInnerProduct">IPInnerProduct</A>(), <A HREF="../IP/IPMInnerProduct.html#IPMInnerProduct">IPMInnerProduct</A>(),
<BR><A HREF="../IP/IPInnerProductBegin.html#IPInnerProductBegin">IPInnerProductBegin</A>(), <A HREF="../IP/IPInnerProductEnd.html#IPInnerProductEnd">IPInnerProductEnd</A>()
<P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/ip/ipdot.c.html#IPNormBegin">src/ip/ipdot.c</A>
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