//
// File: Cmat.h
// $Id: Cmat.h,v 1.4 2009/03/06 21:22:46 thernis Exp $
//

#ifndef _CMAT_H_
#define _CMAT_H_

#include <iostream>
#include <cmath>
#include "Cvec.h"

class Cvec;

//! 3 x 3 matrix manipulation and operations
class Cmat {
    friend class Cvec;

public:
    Cmat();
    //! Copy.
    Cmat(const Cmat &a);
    //! Init with a 3x3 array.
    Cmat(const float [3][3]);
    //! 
    Cmat(const float);
    Cmat(float,float,float,float,float,float,float,float,float);
    Cmat(const float,const int);

    // member function declarations...
    Cvec column(int col);
    Cvec row(int row);
    Cmat& rotmat(float a,int ax);
    float determinant();
    Cmat tranpose();
    float subdet(int i,int j);
    Cmat const inverse();

    friend std::ostream& operator << (std::ostream&,const Cmat&);
    Cmat& operator = (const Cmat &a);
    Cmat operator * (Cmat b);
    friend Cmat operator * (const Cmat &a,const Cmat &b);
    friend Cvec operator * (const Cmat &m,const Cvec &v);
    Cvec operator [](int col);
    bool operator ==(const Cmat &a) const;

public:
    // Cmat variables
    float m[3][3];

};


#endif  //_CMAT_H_



/*
* $Log: Cmat.h,v $
* Revision 1.4  2009/03/06 21:22:46  thernis
* Overload == operator
*
* Revision 1.3  2009/02/09 20:51:06  thernis
* - Clean up the code
* - Change CModel::Density prototype
* - Update documentation
* - Implement multi-threading using boost thread
* - Add new models
*
* Revision 1.2  2007/05/14 17:19:40  thernis
* Add CVS id and log in all files
*
*/