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<TITLE>EPSGetEigenvectorLeft</TITLE>
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<H1>EPSGetEigenvectorLeft</H1>
Gets the i-th left eigenvector as computed by <A HREF="../EPS/EPSSolve.html#EPSSolve">EPSSolve</A>() (only available in two-sided eigensolvers).
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepceps.h"
PetscErrorCode EPSGetEigenvectorLeft(EPS eps,PetscInt i,Vec Wr,Vec Wi)
</PRE>
Not Collective, but vectors are shared by all processors that share the <A HREF="../EPS/EPS.html#EPS">EPS</A>
<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>eps </B></TD><TD> - eigensolver context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>i </B></TD><TD> - index of the solution
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Wr </B></TD><TD> - real part of eigenvector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>Wi </B></TD><TD> - imaginary part of eigenvector
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
If the corresponding eigenvalue is real, then Wi is set to zero. If PETSc is
configured with complex scalars the eigenvector is stored
directly in Wr (Wi is set to zero).
<P>
The index i should be a value between 0 and nconv-1 (see <A HREF="../EPS/EPSGetConverged.html#EPSGetConverged">EPSGetConverged</A>()).
Eigenpairs are indexed according to the ordering criterion established
with <A HREF="../EPS/EPSSetWhichEigenpairs.html#EPSSetWhichEigenpairs">EPSSetWhichEigenpairs</A>().
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSSolve.html#EPSSolve">EPSSolve</A>(), <A HREF="../EPS/EPSGetConverged.html#EPSGetConverged">EPSGetConverged</A>(), <A HREF="../EPS/EPSSetWhichEigenpairs.html#EPSSetWhichEigenpairs">EPSSetWhichEigenpairs</A>(),
<BR><A HREF="../EPS/EPSGetEigenpair.html#EPSGetEigenpair">EPSGetEigenpair</A>(), <A HREF="../EPS/EPSGetEigenvector.html#EPSGetEigenvector">EPSGetEigenvector</A>()
<P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/eps/interface/solve.c.html#EPSGetEigenvectorLeft">src/eps/interface/solve.c</A>
<BR><A HREF="./index.html">Index of all EPS 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="#883300">Examples</FONT></H3>
<A HREF="../../../src/eps/examples/tutorials/ex12.c.html">src/eps/examples/tutorials/ex12.c.html</A><BR>
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