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// ***********************************************************************
//
// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
// Copyright (2003) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef MATRIX_IDENT_CONCAT_H
#define MATRIX_IDENT_CONCAT_H
#include "ConstrainedOptPack_Types.hpp"
#include "AbstractLinAlgPack_MatrixOp.hpp"
namespace ConstrainedOptPack {
/** \brief Matrix class for a matrix vertically concatonated with an identity matrix {abstract}.
*
* Represents an interface for a matrix that represents:
\verbatim
M = [ alpha*op(D) ]
[ I ]
where:
D_rng = [1,rows(op(D))]
I_rng = [rows(op(D))+1,rows(op(D))+cols(op(D))]
or
M = [ I ]
[ alpha*op(D) ]
where:
D_rng = [cols(op(D))+1,rows(op(D))+cols(op(D))]
I_rng = [1,cols(op(D))]
\endverbatim
* and \c I is a <tt>op(D).cols() x op(D).cols()</tt> indentity matrix and
* the full matrix \c M is of order <tt>(op(D).rows() + op(D).cols()) x op(D).cols()</tt>.
*/
class MatrixIdentConcat
: virtual public AbstractLinAlgPack::MatrixOp
{
public:
/** @name Access to representation.
*/
//@{
/** \brief . */
virtual Range1D D_rng() const = 0;
/** \brief . */
virtual Range1D I_rng() const = 0;
/** \brief . */
virtual value_type alpha() const = 0;
/** \brief . */
virtual const MatrixOp& D() const = 0;
/** \brief . */
virtual BLAS_Cpp::Transp D_trans() const = 0;
//@}
/** @name Overridden from MatrixBase */
//@{
/** \brief . */
size_type rows() const;
/** \brief . */
size_type cols() const;
/** \brief . */
size_type nz() const;
//@}
/** @name Overridden from MatrixOp */
//@{
/** \brief . */
std::ostream& output(std::ostream& out) const;
/** \brief . */
void Vp_StMtV(
VectorMutable* vs_lhs, value_type alpha, BLAS_Cpp::Transp trans_rhs1
,const Vector& vs_rhs2, value_type beta
) const;
/** \brief . */
void Vp_StMtV(
VectorMutable* vs_lhs, value_type alpha, BLAS_Cpp::Transp trans_rhs1
,const SpVectorSlice& sv_rhs2, value_type beta
) const;
//@}
}; // end class MatrixIdentConcat
} // end namespace ConstrainedOptPack
#endif // MATRIX_IDENT_CONCAT_H
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