Package dk.jonaslindstrom.ruffini.common.matrices.elements

Class MutableMatrix<E>

java.lang.Object

dk.jonaslindstrom.ruffini.common.matrices.elements.BaseMatrix<E>

dk.jonaslindstrom.ruffini.common.matrices.elements.MutableMatrix<E>

All Implemented Interfaces:

Matrix<E>, java.util.function.BiFunction<Vector<E>,Ring<E>,Vector<E>>

public class MutableMatrix<E>
extends BaseMatrix<E>

Instances of this class represents a mutable matrix.

Field Summary

Fields

Modifier and Type	Field	Description
protected final ArrayList<ArrayList<E>>	rows

Constructor Summary

Constructors

Constructor	Description
MutableMatrix(int m, int n, IntBinaryFunction<E> populator)
MutableMatrix(int m, int n, E defaultValue)

Method Summary

Modifier and Type	Method	Description
Matrix<E>	extendTo(int m, int n, E padding)	Returns a new larger matrix of size m x n which has this matrix in the top left corner and pads the rest using the given padding value.
E	get(int i, int j)
ConcreteVector<E>	getColumn(int j)
int	getHeight()
ConcreteVector<E>	getRow(int i)
int	getWidth()
<F> Matrix<F>	map(java.util.function.Function<E,F> f)
Matrix<E>	minor(int i, int j)
Iterable<Vector<E>>	rows()
void	set(int i, int j, E value)
Matrix<E>	submatrix(int[] rows, int[] columns)	Return a submatrix of this matrix with the given rows and columns.
Matrix<E>	submatrix(int r0, int r1, int c0, int c1)	Return a submatrix of this matrix containing row r0,...,r1-1 and column c0,...,c1-1.
Matrix<E>	transpose()
Matrix<E>	view()	Returns a view of the given matrix.

Methods inherited from class dk.jonaslindstrom.ruffini.common.matrices.elements.BaseMatrix

apply, columns, equals, equals, isSquare, mutable, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.BiFunction

andThen

Methods inherited from interface dk.jonaslindstrom.ruffini.common.matrices.elements.Matrix

collapseColumns, collapseRows, extendWith, get, stream

Field Details

rows

protected final ArrayList<ArrayList<E>> rows

Constructor Details

MutableMatrix

public MutableMatrix(int m,
 int n,
 E defaultValue)

MutableMatrix

public MutableMatrix(int m,
 int n,
 IntBinaryFunction<E> populator)

Method Details

set

public void set(int i,
 int j,
 E value)

submatrix

public Matrix<E> submatrix(int r0,
 int r1,
 int c0,
 int c1)

Return a submatrix of this matrix containing row r0,...,r1-1 and column c0,...,c1-1.

minor

public Matrix<E> minor(int i,
 int j)

transpose

public Matrix<E> transpose()

submatrix

public Matrix<E> submatrix(int[] rows,
 int[] columns)

Return a submatrix of this matrix with the given rows and columns.

Parameters:

rows - Rows to include in submatrix.

columns - Columns to include in submatrix.

get

public E get(int i,
 int j)

getRow

public ConcreteVector<E> getRow(int i)

Specified by:

getRow in interface Matrix<E>

Overrides:

getRow in class BaseMatrix<E>

getColumn

public ConcreteVector<E> getColumn(int j)

Specified by:

getColumn in interface Matrix<E>

Overrides:

getColumn in class BaseMatrix<E>

getHeight

public int getHeight()

getWidth

public int getWidth()

rows

public Iterable<Vector<E>> rows()

Specified by:

rows in interface Matrix<E>

Overrides:

rows in class BaseMatrix<E>

view

public Matrix<E> view()

Description copied from interface: Matrix

Returns a view of the given matrix. This does not store any values but instead maps operations to this matrix.

extendTo

public Matrix<E> extendTo(int m,
 int n,
 E padding)

Description copied from interface: Matrix

Returns a new larger matrix of size m x n which has this matrix in the top left corner and pads the rest using the given padding value.

map

public <F> Matrix<F> map(java.util.function.Function<E,F> f)