MatrixOperations.h

// -*-c++-*-
//----------------------------------------------------------------------------
//  XC program; finite element analysis code
//  for structural analysis and design.
//
//  Copyright (C)  Luis C. Pérez Tato
//
//  This program derives from OpenSees <http://opensees.berkeley.edu>
//  developed by the  «Pacific earthquake engineering research center».
//
//  Except for the restrictions that may arise from the copyright
//  of the original program (see copyright_opensees.txt)
//  XC 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 3 of the License, or 
//  (at your option) any later version.
//
//  This software 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.
// If not, see <http://www.gnu.org/licenses/>.
//----------------------------------------------------------------------------
/* ****************************************************************** **
**    OpenSees - Open System for Earthquake Engineering Simulation    **
**          Pacific Earthquake Engineering Research Center            **
**                                                                    **
**                                                                    **
** (C) Copyright 2001, The Regents of the University of California    **
** All Rights Reserved.                                               **
**                                                                    **
** Commercial use of this program without express permission of the   **
** University of California, Berkeley, is strictly prohibited.  See   **
** file 'COPYRIGHT'  in main directory for information on usage and   **
** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
**                                                                    **
** Developed by:                                                      **
**   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
**   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
**   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
**                                                                    **
** Reliability module developed by:                                   **
**   Terje Haukaas (haukaas@ce.berkeley.edu)                          **
**   Armen Der Kiureghian (adk@ce.berkeley.edu)                       **
**                                                                    **
** ****************************************************************** */
                                                                        
// $Revision: 1.3 $
// $Date: 2003/03/04 00:39:26 $
// $Source: /usr/local/cvs/OpenSees/SRC/reliability/analysis/misc/MatrixOperations.h,v $


//
// Written by Terje Haukaas (haukaas@ce.berkeley.edu)
//

#ifndef MatrixOperations_h
#define MatrixOperations_h

#include <utility/matrix/Vector.h>
#include <utility/matrix/Matrix.h>

namespace XC {

// 
class MatrixOperations
  {

public:
    MatrixOperations(Matrix passedMatrix);
    ~MatrixOperations();
    
    int setMatrix(Matrix passedMatrix);

    int computeLowerCholesky();
    int computeInverseLowerCholesky();
    int computeCholeskyAndItsInverse();
    int computeMatrixNorm();
    int computeInverse();
    int computeTranspose();
    int computeSquareRoot();
    int computeTrace();
    

    Matrix getMatrix();
    Matrix getLowerCholesky();
    Matrix getInverseLowerCholesky();
    Matrix getInverse();
    Matrix getTranspose();
    Matrix getSquareRoot();
    double getMatrixNorm();
    double getTrace();

protected:

private:
    Matrix *theMatrix;
    Matrix *theLowerCholesky;
    Matrix *theInverseLowerCholesky;
    Matrix *theInverse;
    Matrix *theTranspose;
    Matrix *theSquareRoot;
    double theMatrixNorm;
    double theTrace; 

};
} // end of XC namespace

#endif