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 /**************************************************************************

 *                                                                         *

 *                                 RasTop                                  *

 *                                                                         *

 *                 Molecular Graphics Visualisation Tool                   *

 *                                                                         *

 *                                                                         *

 * This program 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.              *

 *                                                                         *

 * This program is distributed in the hope that it will be useful, but     *

 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTA-   *

 * BILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public  *

 * License for more details (license.txt file ).                           *

 *                                                                         *

 * You should have received a copy of the GNU General Public License along *

 * with this program; if not, write to the Free Software Foundation, Inc., *

 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA                   *

 *                                                                         *

 ***************************************************************************/



/* Authors:

 *

 * Please consult the help manual for more information about copyright 

 * holders and version history of RasTop/RasMol source. 

 *

 * Make sure to add your name to this list if you modify this file.

 *

 * Herbert J. Bernstein

 * Christian Duqué

 * Gary Grossman

 * Marco Molinaro

 * Arne Mueller

 * Naoum Salamé

 * Roger Sayle

 * Philippe Valadon

 */





/* vector.h

 */



/* Original file header: */

/**********************************************************************

  Copyright (c) 1995 UC Regents, ModularCHEM Consortium



  vector.h

  Vector Library for Rasmol

  

  Author:      Gary Grossman (garyg@cory.EECS.Berkeley.EDU)

  Last Update: November 14, 1995

 **********************************************************************/



#ifndef VECTOR_H

#define VECTOR_H





#define sqr(x) ((x)*(x))



double Length( double[3] );

double DotProduct( double[3], double[3] );

void AbsoluteVector( double[3] );

void CrossProduct( double[3], double[3], double[3] );

double RadToDegrees( double );

void PrintVector( double[3] );

void SubtractAtoms( RAtom __far *a, RAtom __far *b, double[3] );

void NormalizeVector( double[3] );

void MultMatrix( double[4][4], double[4][4], double[4][4] );

void IdentityMatrix3( double[3][3] );

void IdentityMatrix( double[4][4] );

void ZeroMatrix( double M[4][4] );

void PrintMatrix( double[4][4]);

void RotXMatrix( double[4][4], double );

void RotYMatrix( double[4][4], double );

void RotZMatrix( double[4][4], double );

void RotateAxisMatrix( double[4][4], double, double, double, double );

void CopyMatrix3( double [3][3], double [3][3] );

void CopyMatrix4( double [4][4], double [4][4] );

double NormMatrix3( double [3][3] );



#endif