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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<div id="version" align=right><b>slepc-3.7.3 2016-09-29</b></div>
<div id="bugreport" align=right><a href="mailto:slepc-maint@upv.es?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: slepc-3.7.3 v3.7.3 docs/manualpages/EPS/EPSSetOptionsPrefix.html "><small>Report Typos and Errors</small></a></div>
<H1>EPSSetOptionsPrefix</H1>
Sets the prefix used for searching for all <A HREF="../EPS/EPS.html#EPS">EPS</A> options in the database.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepceps.h"
PetscErrorCode EPSSetOptionsPrefix(EPS eps,const char *prefix)
</PRE>
Logically Collective on <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> - the eigensolver context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>prefix </B></TD><TD> - the prefix string to prepend to all <A HREF="../EPS/EPS.html#EPS">EPS</A> option requests
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
A hyphen (-) must NOT be given at the beginning of the prefix name.
The first character of all runtime options is AUTOMATICALLY the
hyphen.
<P>
For example, to distinguish between the runtime options for two
different <A HREF="../EPS/EPS.html#EPS">EPS</A> contexts, one could call
<PRE>
<A HREF="../EPS/EPSSetOptionsPrefix.html#EPSSetOptionsPrefix">EPSSetOptionsPrefix</A>(eps1,"eig1_")
<A HREF="../EPS/EPSSetOptionsPrefix.html#EPSSetOptionsPrefix">EPSSetOptionsPrefix</A>(eps2,"eig2_")
</PRE>
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSAppendOptionsPrefix.html#EPSAppendOptionsPrefix">EPSAppendOptionsPrefix</A>(), <A HREF="../EPS/EPSGetOptionsPrefix.html#EPSGetOptionsPrefix">EPSGetOptionsPrefix</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/eps/interface/epsopts.c.html#EPSSetOptionsPrefix">src/eps/interface/epsopts.c</A>
<BR><A HREF="./index.html">Index of all EPS routines</A>
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