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<H1>STGetMatStructure</H1>
Gets the internal MatStructure attribute to indicate which is the relation of the sparsity pattern of the two matrices A and B constituting the generalized eigenvalue problem.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcst.h"
PetscErrorCode STGetMatStructure(ST st,MatStructure *str)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#883300">Input Parameters</FONT></H3>
<DT><B>st </B> - the spectral transformation context
<br>
<P>
<H3><FONT COLOR="#883300">Output Parameters</FONT></H3>
<DT><B>str </B> - either SAME_NONZERO_PATTERN, DIFFERENT_NONZERO_PATTERN or
SUBSET_NONZERO_PATTERN
<br>
<P>
<H3><FONT COLOR="#883300">Note</FONT></H3>
This function has no effect in the case of standard eigenproblems.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../ST/STSetMatStructure.html#STSetMatStructure">STSetMatStructure</A>(), <A HREF="../ST/STSetOperators.html#STSetOperators">STSetOperators</A>(), MatAXPY()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/st/interface/stset.c.html#STGetMatStructure">src/st/interface/stset.c</A>
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