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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="KSPChebyshevSetEigenvalues"><H1>KSPChebyshevSetEigenvalues</H1></A>
Sets estimates for the extreme eigenvalues of the preconditioned problem.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../KSP/KSPChebyshevSetEigenvalues.html#KSPChebyshevSetEigenvalues">KSPChebyshevSetEigenvalues</A>(<A HREF="../KSP/KSP.html#KSP">KSP</A> ksp,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> emax,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> emin)
</PRE>
Logically Collective on <A HREF="../KSP/KSP.html#KSP">KSP</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>ksp </B></TD><TD>- the Krylov space context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>emax, emin </B></TD><TD>- the eigenvalue estimates
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<DT><B>-ksp_chebyshev_eigenvalues emin,emax</B> -
Note: Call <A HREF="../KSP/KSPChebyshevEstEigSet.html#KSPChebyshevEstEigSet">KSPChebyshevEstEigSet</A>() or use the option -ksp_chebyshev_esteig a,b,c,d to have the <A HREF="../KSP/KSP.html#KSP">KSP</A>
estimate the eigenvalues and use these estimated values automatically
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../KSP/KSP.html#KSP">KSP</A>, Chebyshev, set, eigenvalues
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/ksp/impls/cheby/cheby.c.html#KSPChebyshevSetEigenvalues">src/ksp/ksp/impls/cheby/cheby.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/ksp/ksp/impls/cheby/cheby.c.html#KSPChebyshevSetEigenvalues_Chebyshev">KSPChebyshevSetEigenvalues_Chebyshev in src/ksp/ksp/impls/cheby/cheby.c</A><BR>
<BR><A HREF="./index.html">Index of all KSP routines</A>
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