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<H1>IPMInnerProduct</H1>
Computes the inner products a vector x with a set of vectors (columns of Y).
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcip.h"
PetscErrorCode IPMInnerProduct(IP ip,Vec x,PetscInt n,const Vec y[],PetscScalar *p)
</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> - the first input vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>n </B></TD><TD> - number of vectors in y
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD> - array of vectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameter</FONT></H3>
<DT><B>p </B> - result of the inner products
<br>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
This function will usually compute the standard dot product of x and y_i,
(x,y_i)=y_i^H x, for each column of Y. However this behaviour may be different
if changed via <A HREF="../IP/IPSetMatrix.html#IPSetMatrix">IPSetMatrix</A>(). This allows use of other inner products
such as the indefinite product y_i^T x for complex symmetric problems or the
B-inner product for positive definite B, (x,y_i)_B=y_i^H Bx.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../IP/IPSetMatrix.html#IPSetMatrix">IPSetMatrix</A>(), VecMDot(), <A HREF="../IP/IPInnerProduct.html#IPInnerProduct">IPInnerProduct</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/ip/ipdot.c.html#IPMInnerProduct">src/ip/ipdot.c</A>
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