BlockCompose< _Blackbox1, _Blackbox2 > Class Template Reference

Blackbox of a product: \(C = AB\), i.e \(Cx \gets A(Bx)\). More...

#include <block-compose.h>

Inheritance diagram for BlockCompose< _Blackbox1, _Blackbox2 >:

Public Types
typedef _Blackbox1	Blackbox1
typedef _Blackbox2	Blackbox2
typedef Blackbox2::Field	Field
typedef Field::Element	Element

Public Member Functions
	BlockCompose (const Blackbox1 &A, const Blackbox2 &B)
	Constructor of C := A*B from blackbox matrices A and B.
size_t	rowdim () const
size_t	coldim () const
const Field &	field () const
template<class Matrix>
Matrix &	applyLeft (Matrix &Y, const Matrix &X) const
template<class Matrix>
Matrix &	applyRight (Matrix &Y, const Matrix &X) const

Protected Attributes
Blackbox1	_A
Blackbox2	_B

Detailed Description

template<class _Blackbox1, class _Blackbox2>
class LinBox::BlockCompose< _Blackbox1, _Blackbox2 >

Blackbox of a product: \(C = AB\), i.e \(Cx \gets A(Bx)\).

This is a class that multiplies two matrices by implementing an apply method that calls the apply methods of both of the consituent matrices, one after the other.

This class, like the Black Box archetype from which it is derived, is templatized by the vector type to which the matrix is applied. Both constituent matrices must also use this same vector type. For specification of the blackbox members see BlackboxArchetype.

Template parameter: must meet the vector requirement.

Member Typedef Documentation

Blackbox1

template<class _Blackbox1, class _Blackbox2>

typedef _Blackbox1 Blackbox1

Blackbox2

template<class _Blackbox1, class _Blackbox2>

typedef _Blackbox2 Blackbox2

Field

template<class _Blackbox1, class _Blackbox2>

typedef Blackbox2::Field Field

Element

template<class _Blackbox1, class _Blackbox2>

typedef Field::Element Element

Constructor & Destructor Documentation

BlockCompose()

template<class _Blackbox1, class _Blackbox2>

BlockCompose ( const Blackbox1 & A, const Blackbox2 & B )

inline

Constructor of C := A*B from blackbox matrices A and B.

Build the product A*B of any two black box matrices of compatible dimensions.

Precondition

A.coldim() == B.rowdim().

Parameters

A	blackbox
B	blackbox

Member Function Documentation

rowdim()

template<class _Blackbox1, class _Blackbox2>

size_t rowdim ( ) const

inline

coldim()

template<class _Blackbox1, class _Blackbox2>

size_t coldim ( ) const

inline

field()

template<class _Blackbox1, class _Blackbox2>

const Field & field ( ) const

inline

applyLeft()

template<class _Blackbox1, class _Blackbox2>

template<class Matrix>

Matrix & applyLeft ( Matrix & Y, const Matrix & X ) const

inline

applyRight()

template<class _Blackbox1, class _Blackbox2>

template<class Matrix>

Matrix & applyRight ( Matrix & Y, const Matrix & X ) const

inline

Field Documentation

_A

template<class _Blackbox1, class _Blackbox2>

Blackbox1 _A

protected

_B

template<class _Blackbox1, class _Blackbox2>

Blackbox2 _B

protected

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The documentation for this class was generated from the following file:

• block-compose.h