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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<A NAME="VecWAXPY"><H1>VecWAXPY</H1></A>
Computes w = alpha x + y.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
PetscErrorCode VecWAXPY(Vec w,PetscScalar alpha,Vec x,Vec y)
</PRE>
Collective on <A HREF="../Vec/Vec.html#Vec">Vec</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>alpha </B></TD><TD>- the scalar
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x, y </B></TD><TD>- the vectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>w </B> -the result
<br>
<P>
<P>
Notes: Neither the vector x or y can be the same as vector w
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecAXPY.html#VecAXPY">VecAXPY</A>(), <A HREF="../Vec/VecAYPX.html#VecAYPX">VecAYPX</A>(), <A HREF="../Vec/VecAXPBY.html#VecAXPBY">VecAXPBY</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/vec/interface/rvector.c.html#VecWAXPY">src/vec/vec/interface/rvector.c</A>
<BR><A HREF="./index.html">Index of all Vec 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>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/vec/vec/examples/tutorials/ex1.c.html">src/vec/vec/examples/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex1e.c.html">src/vec/vec/examples/tutorials/ex1e.c.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex1f.F.html">src/vec/vec/examples/tutorials/ex1f.F.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex1f90.F.html">src/vec/vec/examples/tutorials/ex1f90.F.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex20f90.F90.html">src/vec/vec/examples/tutorials/ex20f90.F90.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex38.c.html">src/snes/examples/tutorials/ex38.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex33f.F.html">src/snes/examples/tutorials/ex33f.F.html</A><BR>
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