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/*
Copyright (C) 1996, 1997 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined (octave_EIG_h)
#define octave_EIG_h 1
#if defined (__GNUG__)
#pragma interface
#endif
class ostream;
#include "dMatrix.h"
#include "CMatrix.h"
#include "CColVector.h"
class
EIG
{
friend class Matrix;
friend class ComplexMatrix;
public:
EIG (void)
: lambda (), v () { }
EIG (const Matrix& a) { init (a); }
EIG (const Matrix& a, int& info) { info = init (a); }
EIG (const ComplexMatrix& a) { init (a); }
EIG (const ComplexMatrix& a, int& info) { info = init (a); }
EIG (const EIG& a)
: lambda (a.lambda), v (a.v) { }
EIG& operator = (const EIG& a)
{
if (this != &a)
{
lambda = a.lambda;
v = a.v;
}
return *this;
}
~EIG (void) { }
ComplexColumnVector eigenvalues (void) const { return lambda; }
ComplexMatrix eigenvectors (void) const { return v; }
friend ostream& operator << (ostream& os, const EIG& a);
private:
ComplexColumnVector lambda;
ComplexMatrix v;
int init (const Matrix& a);
int init (const ComplexMatrix& a);
int symmetric_init (const Matrix& a);
int hermitian_init (const ComplexMatrix& a);
};
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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