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matrix.h
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Tue, Feb 18, 23:14

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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