Module ojalgo

Package org.ojalgo.matrix.transformation

Class InvertibleFactor.IdentityFactor<N extends Comparable<N>>

java.lang.Object

org.ojalgo.matrix.transformation.InvertibleFactor.IdentityFactor<N>

All Implemented Interfaces:

InvertibleFactor<N>, Structure1D, Structure2D

Enclosing interface:

InvertibleFactor<N extends Comparable<N>>

public static final class InvertibleFactor.IdentityFactor<N extends Comparable<N>>
extends Object
implements InvertibleFactor<N>

Nested Class Summary

Nested classes/interfaces inherited from interface org.ojalgo.matrix.transformation.InvertibleFactor

InvertibleFactor.IdentityFactor<N extends Comparable<N>>

Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure1D

Structure1D.BasicMapper<T>, Structure1D.IndexMapper<T>, Structure1D.IntIndex, Structure1D.LongIndex, Structure1D.LoopCallback

Nested classes/interfaces inherited from interface org.ojalgo.structure.Structure2D

Structure2D.IntRowColumn, Structure2D.Logical<S extends Structure2D,B extends Structure2D.Logical<S,B>>, Structure2D.LongRowColumn, Structure2D.ReducibleTo1D<R extends Structure1D>, Structure2D.Reshapable, Structure2D.RowColumnKey<R,C>, Structure2D.RowColumnMapper<R,C>

Field Summary

Fields

Modifier and Type	Field	Description
private final int	myDim

Constructor Summary

Constructors

Constructor	Description
IdentityFactor(int dim)

Method Summary

Modifier and Type	Method	Description
void	btran(PhysicalStore<N> arg)	Backwards-transformation
void	ftran(PhysicalStore<N> arg)	Forward-transformation
int	getColDim()
int	getRowDim()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ojalgo.structure.Structure2D

count, countColumns, countRows, firstInColumn, firstInRow, getMaxDim, getMinDim, isEmpty, isFat, isScalar, isSquare, isTall, isVector, limitOfColumn, limitOfRow, size

Field Details

myDim

private final int myDim

Constructor Details

IdentityFactor

IdentityFactor(int dim)

Method Details

btran

public void btran(PhysicalStore<N> arg)

Description copied from interface: InvertibleFactor

Backwards-transformation

Solve [x]^T[A] = [b]^T (equivalent to [A]^T[x] = [b]) by transforming [b] into [x] in-place.

Specified by:

btran in interface InvertibleFactor<N extends Comparable<N>>

Parameters:

arg - [b] transformed into [x]

ftran

public void ftran(PhysicalStore<N> arg)

Description copied from interface: InvertibleFactor

Forward-transformation

Solve [A][x] = [b] by transforming [b] into [x] in-place.

Specified by:

ftran in interface InvertibleFactor<N extends Comparable<N>>

Parameters:

arg - [b] transformed into [x]

getColDim

public int getColDim()

Specified by:

getColDim in interface Structure2D

Returns:

The number of columns

getRowDim

public int getRowDim()

Specified by:

getRowDim in interface Structure2D

Returns:

The number of rows