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EIG.h
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C/C++ Source or Header
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1996-10-12
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121 lines
// -*- 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: ***
*/