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<H1>NEPComputeJacobian</H1>
Computes the Jacobian matrix T'(lambda) that has been set with <A HREF="../NEP/NEPSetJacobian.html#NEPSetJacobian">NEPSetJacobian</A>().
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcnep.h"
PetscErrorCode NEPComputeJacobian(NEP nep,PetscScalar lambda,Mat *A,MatStructure *flg)
</PRE>
Collective on <A HREF="../NEP/NEP.html#NEP">NEP</A> and Mat
<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>lambda </B></TD><TD> - the scalar argument
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>A </B></TD><TD> - Jacobian matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>flg </B></TD><TD> - flag indicating matrix structure (see MatStructure enum)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
Most users should not need to explicitly call this routine, as it
is used internally within the nonlinear eigensolvers.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../NEP/NEPSetJacobian.html#NEPSetJacobian">NEPSetJacobian</A>(), <A HREF="../NEP/NEPGetJacobian.html#NEPGetJacobian">NEPGetJacobian</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/nep/interface/nepsolve.c.html#NEPComputeJacobian">src/nep/interface/nepsolve.c</A>
<BR><A HREF="./index.html">Index of all NEP routines</A>
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