1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="https://slepc.upv.es/documentation/current/docs/manualpages/BV/BVMultVec.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<link rel="stylesheet" href="/slepc.css" type="text/css">
<TITLE>BVMultVec</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<div id="version" align=right><b>slepc-3.14.2 2021-02-01</b></div>
<div id="bugreport" align=right><a href="mailto:slepc-maint@upv.es?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: slepc-3.14.2 v3.14.2 docs/manualpages/BV/BVMultVec.html "><small>Report Typos and Errors</small></a></div>
<H1>BVMultVec</H1>
Computes y = beta*y + alpha*X*q.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcbv.h"
PetscErrorCode <A HREF="../BV/BVMultVec.html#BVMultVec">BVMultVec</A>(<A HREF="../BV/BV.html#BV">BV</A> X,PetscScalar alpha,PetscScalar beta,Vec y,PetscScalar q[])
</PRE>
Logically Collective on X
<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>X </B></TD><TD> - a basis vectors object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>alpha,beta </B></TD><TD> - scalars
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD> - a vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>q </B></TD><TD> - an array of scalars
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD> - the modified vector
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
This operation is the analogue of <A HREF="../BV/BVMult.html#BVMult">BVMult</A>() but with a <A HREF="../BV/BV.html#BV">BV</A> and a Vec,
instead of two <A HREF="../BV/BV.html#BV">BV</A>. Note that arguments are listed in different order
with respect to <A HREF="../BV/BVMult.html#BVMult">BVMult</A>().
<P>
If X has leading columns specified, then these columns do not participate
in the computation.
<P>
The length of array q must be equal to the number of active columns of X
minus the number of leading columns, i.e. the first entry of q multiplies
the first non-leading column.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../BV/BVMult.html#BVMult">BVMult</A>(), <A HREF="../BV/BVMultColumn.html#BVMultColumn">BVMultColumn</A>(), <A HREF="../BV/BVMultInPlace.html#BVMultInPlace">BVMultInPlace</A>(), <A HREF="../BV/BVSetActiveColumns.html#BVSetActiveColumns">BVSetActiveColumns</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/sys/classes/bv/interface/bvops.c.html#BVMultVec">src/sys/classes/bv/interface/bvops.c</A>
<BR><A HREF="./index.html">Index of all BV routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
</BODY></HTML>
|
