new file mode 100644
--- /dev/null
+++ b/liboctave/sparse-base-lu.h
@@ -0,0 +1,85 @@
+/*
+
+Copyright (C) 2004 David Bateman
+Copyright (C) 1998-2004 Andy Adler
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+
+#if !defined (octave_sparse_base_lu_h)
+#define octave_sparse_base_lu_h 1
+
+#include "MArray.h"
+
+template <class lu_type, class lu_elt_type, class p_type, class p_elt_type>
+class
+sparse_base_lu
+{
+public:
+
+  sparse_base_lu (void) { }
+
+  sparse_base_lu (const sparse_base_lu& a) 
+    : Lfact (a.Lfact), Ufact (a.Ufact), cond (a.cond), P (a.P), Q (a.Q) { }
+
+  sparse_base_lu& operator = (const sparse_base_lu& a)
+    {
+      if (this != &a)
+	{
+	  Lfact = a.Lfact;
+	  Ufact = a.Ufact;
+	  cond = a.cond;
+	  P = a.P;
+	  Q = a.Q;
+	}
+      return *this;
+    }
+
+  ~sparse_base_lu (void) { }
+
+  lu_type L (void) const { return Lfact; }
+
+  lu_type U (void) const { return Ufact; }
+
+  p_type Pc (void) const;
+
+  p_type Pr (void) const;
+
+  MArray<int> row_perm (void) const { return P; }
+
+  MArray<int> col_perm (void) const { return Q; }
+
+  double rcond (void) const { return cond; }
+
+protected:
+
+  lu_type Lfact;
+  lu_type Ufact;
+
+  double cond;
+
+  MArray<int> P;
+  MArray<int> Q;
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; End: ***
+*/