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matrix.h
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Thu, Aug 29, 05:45
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text/x-c++
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rLAMMPS lammps
matrix.h
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/*
*_________________________________________________________________________*
* POEMS: PARALLELIZABLE OPEN SOURCE EFFICIENT MULTIBODY SOFTWARE *
* DESCRIPTION: SEE READ-ME *
* FILE NAME: matrix.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 MATRIX_H
#define MATRIX_H
#include "virtualmatrix.h"
class
Mat3x3
;
class
Mat4x4
;
class
Mat6x6
;
class
Vect6
;
class
ColMatrix
;
class
Matrix
:
public
VirtualMatrix
{
double
**
rows
;
// row pointer
double
*
elements
;
public:
Matrix
();
~
Matrix
();
Matrix
(
const
Matrix
&
A
);
// copy constructor
Matrix
(
const
VirtualMatrix
&
A
);
// copy constructor
Matrix
(
int
m
,
int
n
);
// size constructor
double
&
operator_2int
(
int
i
,
int
j
);
// array access
double
Get_2int
(
int
i
,
int
j
)
const
;
void
Set_2int
(
int
i
,
int
j
,
double
value
);
double
BasicGet_2int
(
int
i
,
int
j
)
const
;
void
BasicSet_2int
(
int
i
,
int
j
,
double
value
);
void
BasicIncrement_2int
(
int
i
,
int
j
,
double
value
);
void
Const
(
double
value
);
MatrixType
GetType
()
const
;
std
::
istream
&
ReadData
(
std
::
istream
&
c
);
std
::
ostream
&
WriteData
(
std
::
ostream
&
c
)
const
;
Matrix
&
Dim
(
int
m
,
int
n
);
// allocate size
void
AssignVM
(
const
VirtualMatrix
&
A
);
Matrix
&
operator
=
(
const
Matrix
&
A
);
// assignment operator
Matrix
&
operator
=
(
const
VirtualMatrix
&
A
);
// overloaded =
Matrix
&
operator
*=
(
double
b
);
friend
void
FastLDLT
(
Matrix
&
A
,
Matrix
&
C
);
friend
void
FastLDLTSubs
(
Matrix
&
LD
,
Matrix
&
B
,
Matrix
&
C
);
friend
void
FastLDLTSubsLH
(
Matrix
&
B
,
Matrix
&
LD
,
Matrix
&
C
);
friend
void
FastLU
(
Matrix
&
A
,
Matrix
&
LU
,
int
*
indx
);
friend
void
FastLUSubs
(
Matrix
&
LU
,
Matrix
&
B
,
Matrix
&
C
,
int
*
indx
);
friend
void
FastLUSubs
(
Mat3x3
&
LU
,
Matrix
&
B
,
Matrix
&
C
,
int
*
indx
);
friend
void
FastLUSubs
(
Mat4x4
&
LU
,
Matrix
&
B
,
Matrix
&
C
,
int
*
indx
);
friend
void
FastLUSubs
(
Mat6x6
&
LU
,
Matrix
&
B
,
Matrix
&
C
,
int
*
indx
);
friend
void
FastLUSubsLH
(
Matrix
&
B
,
Matrix
&
LU
,
Matrix
&
C
,
int
*
indx
);
friend
void
FastMult
(
Matrix
&
A
,
Matrix
&
B
,
Matrix
&
C
);
friend
void
FastTMult
(
Matrix
&
A
,
Matrix
&
B
,
Matrix
&
C
);
friend
void
FastTMult
(
Matrix
&
A
,
Vect6
&
B
,
ColMatrix
&
C
);
friend
void
FastMult
(
Mat6x6
&
A
,
Matrix
&
B
,
Matrix
&
C
);
friend
void
FastMult
(
Matrix
&
A
,
ColMatrix
&
B
,
Vect6
&
C
);
friend
void
FastMultT
(
Matrix
&
A
,
Matrix
&
B
,
Mat6x6
&
C
);
};
#endif
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