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<div id="version" align=right><b>slepc-3.7.3 2016-09-29</b></div>
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<H1>NEPNLEIGSSetSingularitiesFunction</H1>
Sets a user function to compute a discretization of the singularity set (where T(.) is not analytic).
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcnep.h"
PetscErrorCode NEPNLEIGSSetSingularitiesFunction(NEP nep,PetscErrorCode (*fun)(NEP,PetscInt*,PetscScalar*,void*),void *ctx)
</PRE>
Logically Collective on <A HREF="../NEP/NEP.html#NEP">NEP</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>nep </B></TD><TD> - the <A HREF="../NEP/NEP.html#NEP">NEP</A> context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>fun </B></TD><TD> - user function (if NULL then <A HREF="../NEP/NEP.html#NEP">NEP</A> retains any previously set value)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD> - [optional] user-defined context for private data for the function
(may be NULL, in which case <A HREF="../NEP/NEP.html#NEP">NEP</A> retains any previously set value)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Calling Sequence of fun</FONT></H3>
<pre>
fun(<A HREF="../NEP/NEP.html#NEP">NEP</A> nep,PetscInt *maxnp,PetscScalar *xi,void *ctx)
</pre>
<P>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nep </B></TD><TD> - the <A HREF="../NEP/NEP.html#NEP">NEP</A> context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>maxnp </B></TD><TD> - on input number of requested points in the discretization (can be set)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>xi </B></TD><TD> - computed values of the discretization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD> - optional context, as set by <A HREF="../NEP/NEPNLEIGSSetSingularitiesFunction.html#NEPNLEIGSSetSingularitiesFunction">NEPNLEIGSSetSingularitiesFunction</A>()
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Note</FONT></H3>
The user-defined function can set a smaller value of maxnp if necessary.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../NEP/NEPNLEIGSGetSingularitiesFunction.html#NEPNLEIGSGetSingularitiesFunction">NEPNLEIGSGetSingularitiesFunction</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/nep/impls/nleigs/nleigs.c.html#NEPNLEIGSSetSingularitiesFunction">src/nep/impls/nleigs/nleigs.c</A>
<BR><A HREF="./index.html">Index of all NEP 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/nep/examples/tutorials/ex27.c.html">src/nep/examples/tutorials/ex27.c.html</A><BR>
<A HREF="../../../src/nep/examples/nlevp/gun.c.html">src/nep/examples/nlevp/gun.c.html</A><BR>
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