org.openscience.cdk.math

Class IMatrix

java.lang.Object

org.openscience.cdk.math.IMatrix

public class IMatrix
extends Object

This class contains a complex matrix.

Belongs to CDK module:

qm

Field Summary

Fields

Modifier and Type	Field and Description
int	columns the count of columns of the matrix
double[][]	imagmatrix the imaginary part of the content
double[][]	realmatrix the real part of the content
int	rows the count of rows of the matrix

Constructor Summary

Constructors

Constructor and Description
IMatrix(int rows, int columns) Creates a complex matrix
IMatrix(Matrix m) Creates a complex copy of a matrix

Method Summary

Modifier and Type	Method and Description
IMatrix	add(IMatrix b) Addition from two matrices
void	add(IMatrix b, IMatrix result) Addition from two matrices
Complex	contraction() Calculates the contraction from a matrix
IMatrix	duplicate() Copy a matrix
void	duplicate(IMatrix result) Copy a matrix
int	getColumns() Returns the count of columns
int	getRows() Returns the count of rows
IVector	getVectorFromColumn(int index) Creates a vector with the content of a column from this matrix
IVector	getVectorFromDiagonal() Creates a vector with the content of the diagonal elements from this matrix
IVector	getVectorFromRow(int index) Creates a vector with the content of a row from this matrix
IMatrix	mul(Complex a) Multiplikation from a scalar and a matrix
void	mul(Complex a, IMatrix result) Multiplikation from a scalar and a matrix
IMatrix	mul(IMatrix b) Multiplikation from two matrices
void	mul(IMatrix b, IMatrix result) Multiplikation from two matrices
IVector	mul(IVector a) Multiplikation from a vector and a matrix
void	mul(IVector a, IVector result) Multiplikation from a vector and a matrix
void	reshape(int newrows, int newcolumns) Resize the matrix
IMatrix	similar(IMatrix U) Similar transformation Ut * M * U
void	similar(IMatrix U, IMatrix result) Similar transformation Ut * M * U
IMatrix	sub(IMatrix b) Subtraktion from two matrices
void	sub(IMatrix b, IMatrix result) Subtraktion from two matrices
String	toString() Return a matrix as a string
IMatrix	transpose() Transpose a matrix
void	transpose(IMatrix result) Transpose a matrix

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

realmatrix

public double[][] realmatrix

the real part of the content

imagmatrix

public double[][] imagmatrix

the imaginary part of the content

rows

public int rows

the count of rows of the matrix

columns

public int columns

the count of columns of the matrix

Constructor Detail

IMatrix

public IMatrix(int rows,
               int columns)

Creates a complex matrix

IMatrix

public IMatrix(Matrix m)

Creates a complex copy of a matrix

Method Detail

getRows

public int getRows()

Returns the count of rows

getColumns

public int getColumns()

Returns the count of columns

getVectorFromRow

public IVector getVectorFromRow(int index)

Creates a vector with the content of a row from this matrix

getVectorFromColumn

public IVector getVectorFromColumn(int index)

Creates a vector with the content of a column from this matrix

getVectorFromDiagonal

public IVector getVectorFromDiagonal()

Creates a vector with the content of the diagonal elements from this matrix

add

public IMatrix add(IMatrix b)

Addition from two matrices

add

public void add(IMatrix b,
                IMatrix result)

Addition from two matrices

sub

public IMatrix sub(IMatrix b)

Subtraktion from two matrices

sub

public void sub(IMatrix b,
                IMatrix result)

Subtraktion from two matrices

mul

public IMatrix mul(IMatrix b)

Multiplikation from two matrices

mul

public void mul(IMatrix b,
                IMatrix result)

Multiplikation from two matrices

mul

public IVector mul(IVector a)

Multiplikation from a vector and a matrix

mul

public void mul(IVector a,
                IVector result)

Multiplikation from a vector and a matrix

mul

public IMatrix mul(Complex a)

Multiplikation from a scalar and a matrix

mul

public void mul(Complex a,
                IMatrix result)

Multiplikation from a scalar and a matrix

duplicate

public IMatrix duplicate()

Copy a matrix

duplicate

public void duplicate(IMatrix result)

Copy a matrix

transpose

public IMatrix transpose()

Transpose a matrix

transpose

public void transpose(IMatrix result)

Transpose a matrix

similar

public IMatrix similar(IMatrix U)

Similar transformation Ut * M * U

similar

public void similar(IMatrix U,
                    IMatrix result)

Similar transformation Ut * M * U

contraction

public Complex contraction()

Calculates the contraction from a matrix

toString

public String toString()

Return a matrix as a string

Overrides:

toString in class Object

reshape

public void reshape(int newrows,
                    int newcolumns)

Resize the matrix