home *** CD-ROM | disk | FTP | other *** search
- // -*- C++ -*-
- /*
-
- Copyright (C) 1992, 1993, 1994, 1995 John W. Eaton
-
- This file is part of Octave.
-
- 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 Octave; see the file COPYING. If not, write to the Free
- Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- */
-
- #if !defined (octave_EIG_h)
- #define octave_EIG_h 1
-
- class ostream;
-
- #include "dMatrix.h"
- #include "CMatrix.h"
- #include "CColVector.h"
-
- extern "C++" {
-
- class EIG
- {
- friend class Matrix;
- friend class ComplexMatrix;
-
- public:
-
- EIG (void) {}
-
- EIG (const Matrix& a);
- EIG (const Matrix& a, int& info);
-
- EIG (const ComplexMatrix& a);
- EIG (const ComplexMatrix& a, int& info);
-
- EIG (const EIG& a);
-
- EIG& operator = (const EIG& a);
-
- ComplexColumnVector eigenvalues (void) const;
- ComplexMatrix eigenvectors (void) const;
-
- friend ostream& operator << (ostream& os, const EIG& a);
-
- private:
-
- int init (const Matrix& a);
- int init (const ComplexMatrix& a);
-
- ComplexColumnVector lambda;
- ComplexMatrix v;
- };
-
- inline EIG::EIG (const Matrix& a)
- {
- init (a);
- }
-
- inline EIG::EIG (const Matrix& a, int& info)
- {
- info = init (a);
- }
-
- inline EIG::EIG (const ComplexMatrix& a)
- {
- init (a);
- }
-
- inline EIG::EIG (const ComplexMatrix& a, int& info)
- {
- info = init (a);
- }
-
- inline EIG::EIG (const EIG& a)
- {
- lambda = a.lambda;
- v = a.v;
- }
-
- inline EIG& EIG::operator = (const EIG& a)
- {
- lambda = a.lambda;
- v = a.v;
- return *this;
- }
-
- inline ComplexColumnVector EIG::eigenvalues (void) const
- {
- return lambda;
- }
-
- inline ComplexMatrix EIG::eigenvectors (void) const
- {
- return v;
- }
-
- } // extern "C++"
-
- #endif
-
- /*
- ;;; Local Variables: ***
- ;;; mode: C++ ***
- ;;; page-delimiter: "^/\\*" ***
- ;;; End: ***
- */
-