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<TITLE>MFNSolve</TITLE>
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<H1>MFNSolve</H1>
Solves the matrix function problem. Given a vector b, the vector x = f(alpha*A)*b is returned.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcmfn.h"
PetscErrorCode MFNSolve(MFN mfn,Vec b,Vec x)
</PRE>
Collective on <A HREF="../MFN/MFN.html#MFN">MFN</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>mfn </B></TD><TD> - matrix function context obtained from <A HREF="../MFN/MFNCreate.html#MFNCreate">MFNCreate</A>()
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>b </B></TD><TD> - the right hand side vector
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameter</FONT></H3>
<DT><B>x </B> - the solution
<br>
<P>
<H3><FONT COLOR="#883300">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mfn_view </B></TD><TD> - print information about the solver used
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mfn_view_mat binary </B></TD><TD> - save the matrix to the default binary viewer
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mfn_view_rhs binary </B></TD><TD> - save right hand side vector to the default binary viewer
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mfn_view_solution binary </B></TD><TD> - save computed solution vector to the default binary viewer
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
The matrix A is specified with <A HREF="../MFN/MFNSetOperator.html#MFNSetOperator">MFNSetOperator</A>().
The function f is specified with <A HREF="../MFN/MFNSetFunction.html#MFNSetFunction">MFNSetFunction</A>().
The scalar alpha is specified with <A HREF="../MFN/MFNSetScaleFactor.html#MFNSetScaleFactor">MFNSetScaleFactor</A>().
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../MFN/MFNCreate.html#MFNCreate">MFNCreate</A>(), <A HREF="../MFN/MFNSetUp.html#MFNSetUp">MFNSetUp</A>(), <A HREF="../MFN/MFNDestroy.html#MFNDestroy">MFNDestroy</A>(), <A HREF="../MFN/MFNSetTolerances.html#MFNSetTolerances">MFNSetTolerances</A>(),
<BR><A HREF="../MFN/MFNSetOperator.html#MFNSetOperator">MFNSetOperator</A>(), <A HREF="../MFN/MFNSetFunction.html#MFNSetFunction">MFNSetFunction</A>(), <A HREF="../MFN/MFNSetScaleFactor.html#MFNSetScaleFactor">MFNSetScaleFactor</A>()
<P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/mfn/interface/mfnsolve.c.html#MFNSolve">src/mfn/interface/mfnsolve.c</A>
<BR><A HREF="./index.html">Index of all MFN 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/mfn/examples/tutorials/ex23.c.html">src/mfn/examples/tutorials/ex23.c.html</A><BR>
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