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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.10.3 v3.10.3 docs/manualpages/Vec/VecMAXPY.html "><small>Report Typos and Errors</small></a></div>
<A NAME="VecMAXPY"><H1>VecMAXPY</H1></A>
Computes y = y + sum alpha[j] x[j]
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Vec/VecMAXPY.html#VecMAXPY">VecMAXPY</A>(<A HREF="../Vec/Vec.html#Vec">Vec</A> y,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> nv,const <A HREF="../Sys/PetscScalar.html#PetscScalar">PetscScalar</A> alpha[],<A HREF="../Vec/Vec.html#Vec">Vec</A> x[])
</PRE>
Logically 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>nv </B></TD><TD>- number of scalars and x-vectors
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>alpha </B></TD><TD>- array of scalars
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD>- one vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x </B></TD><TD>- array of vectors
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
y cannot be any of the x vectors
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecAXPY.html#VecAXPY">VecAXPY</A>(), <A HREF="../Vec/VecWAXPY.html#VecWAXPY">VecWAXPY</A>(), <A HREF="../Vec/VecAYPX.html#VecAYPX">VecAYPX</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/vec/vec/interface/rvector.c.html#VecMAXPY">src/vec/vec/interface/rvector.c</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/ex1f.F90.html">src/vec/vec/examples/tutorials/ex1f.F90.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex1f90.F90.html">src/vec/vec/examples/tutorials/ex1f90.F90.html</A><BR>
<A HREF="../../../src/vec/vec/examples/tutorials/ex20f90.F90.html">src/vec/vec/examples/tutorials/ex20f90.F90.html</A><BR>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/vec/vec/impls/nest/vecnest.c.html#VecMAXPY_Nest">VecMAXPY_Nest in src/vec/vec/impls/nest/vecnest.c</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/dvec2.c.html#VecMAXPY_Seq">VecMAXPY_Seq in src/vec/vec/impls/seq/dvec2.c</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/seqcuda/veccuda2.cu.html#VecMAXPY_SeqCUDA">VecMAXPY_SeqCUDA in src/vec/vec/impls/seq/seqcuda/veccuda2.cu</A><BR>
<A HREF="../../../src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx.html#VecMAXPY_SeqViennaCL">VecMAXPY_SeqViennaCL in src/vec/vec/impls/seq/seqviennacl/vecviennacl.cxx</A><BR>
<BR><A HREF="./index.html">Index of all Vec routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
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