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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
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<H1>MFNSetType</H1>
Selects the particular solver to be used in the <A HREF="../MFN/MFN.html#MFN">MFN</A> object.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcmfn.h"
<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../MFN/MFNSetType.html#MFNSetType">MFNSetType</A>(<A HREF="../MFN/MFN.html#MFN">MFN</A> mfn,<A HREF="../MFN/MFNType.html#MFNType">MFNType</A> type)
</PRE>
Logically Collective
<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>mfn </B></TD><TD> - the matrix function context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>type </B></TD><TD> - a known method
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Options Database Key</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mfn_type <method> </B></TD><TD> - Sets the method; use -help for a list
of available methods
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
See "slepc/include/slepcmfn.h" for available methods. The default
is MFNKRYLOV
<P>
Normally, it is best to use the <A HREF="../MFN/MFNSetFromOptions.html#MFNSetFromOptions">MFNSetFromOptions</A>() command and
then set the <A HREF="../MFN/MFN.html#MFN">MFN</A> type from the options database rather than by using
this routine. Using the options database provides the user with
maximum flexibility in evaluating the different available methods.
The <A HREF="../MFN/MFNSetType.html#MFNSetType">MFNSetType</A>() routine is provided for those situations where it
is necessary to set the iterative solver independently of the command
line or options database.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../MFN/MFNType.html#MFNType">MFNType</A>
<BR><P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../src/mfn/interface/mfnbasic.c.html#MFNSetType">src/mfn/interface/mfnbasic.c</A>
<BR><BR><A HREF="./index.html">Index of all MFN routines</A>
<BR><A HREF="../../../docs/manual.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
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