lammps/lib/poems/eulerparameters.h

38 lines
1.6 KiB
C

/*
*_________________________________________________________________________*
* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
* DESCRIPTION: SEE READ-ME *
* FILE NAME: eulerparameters.h *
* AUTHORS: See Author List *
* GRANTS: See Grants List *
* COPYRIGHT: (C) 2005 by Authors as listed in Author's List *
* LICENSE: Please see License Agreement *
* DOWNLOAD: Free at www.rpi.edu/~anderk5 *
* ADMINISTRATOR: Prof. Kurt Anderson *
* Computational Dynamics Lab *
* Rensselaer Polytechnic Institute *
* 110 8th St. Troy NY 12180 *
* CONTACT: anderk5@rpi.edu *
*_________________________________________________________________________*/
#ifndef EULERPARAMETERS_H
#define EULERPARAMETERS_H
#include "colmatrix.h"
#include "mat3x3.h"
void EP_Derivatives(ColMatrix& q, ColMatrix& u, ColMatrix& qdot);
void EP_Transformation(ColMatrix& q, Mat3x3& C);
void EP_FromTransformation(ColMatrix& q, Mat3x3& C);
void EP_Normalize(ColMatrix& q);
void EPdotdot_udot(ColMatrix& Audot, ColMatrix& Aqdot, ColMatrix& Aq,ColMatrix& Aqddot);
void qdot_to_u(ColMatrix& q, ColMatrix& u, ColMatrix& qdot);
#endif