vector.h

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/* ========================================================================
* PROJECT: ARToolKitPlus
* ========================================================================
* This work is based on the original ARToolKit developed by
*   Hirokazu Kato
*   Mark Billinghurst
*   HITLab, University of Washington, Seattle
* http://www.hitl.washington.edu/artoolkit/
*
* Copyright of the derived and new portions of this work
*     (C) 2006 Graz University of Technology
*
* This framework 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 of the License, or
* (at your option) any later version.
*
* This framework 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 framework; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*
* For further information please contact 
*   Dieter Schmalstieg
*   <schmalstieg@icg.tu-graz.ac.at>
*   Graz University of Technology, 
*   Institut for Computer Graphics and Vision,
*   Inffeldgasse 16a, 8010 Graz, Austria.
* ========================================================================
** @author   Daniel Wagner
*
* $Id: vector.h 162 2006-04-19 21:28:10Z grabner $
* @file
* ======================================================================== */


#ifndef __ARTOOLKITVECTOR_HEADERFILE__
#define __ARTOOLKITVECTOR_HEADERFILE__

#include <math.h>
#include <ARToolKitPlus/config.h>


namespace ARToolKitPlus {


struct ARMat;


struct ARVec {
        ARFloat *v;
        int    clm;
} ;


namespace Vector {
        static ARVec  *alloc( int clm );
        static int    free( ARVec *v );
        // static int    disp( ARVec *v );
        static ARFloat household( ARVec *x );
        static ARFloat innerproduct( ARVec *x, ARVec *y );
        static int    tridiagonalize( ARMat *a, ARVec *d, ARVec *e );
}


}  // namespace ARToolKitPlus


#endif // __ARTOOLKITVECTOR_HEADERFILE__