Permutation< _Field, _Storage > Class Template Reference

size is n. More...

#include <permutation.h>

Inheritance diagram for Permutation< _Field, _Storage >:

Public Member Functions
	Permutation (Storage &indices, const Field &F=Field())
	Constructor from a vector of indices.
	Permutation (int n, const Field &F=Field())
	Constructor from a dimension.
template<class OutVector , class InVector >
OutVector &	apply (OutVector &y, const InVector &x) const
	Application of BlackBox permutation matrix.
template<class OutVector , class InVector >
OutVector &	applyTranspose (OutVector &y, const InVector &x) const
	Application of BlackBox permutation matrix transpose.
size_t	rowdim (void) const
	rowdim
size_t	coldim (void) const
	coldim
void	permute (size_t row1, size_t row2)
	Add a transposition to the matrix.

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Detailed Description

template<class _Field, class _Storage = __LINBOX_PERMUTATION_STORAGE>
class LinBox::Permutation< _Field, _Storage >

size is n.

Parameters:

Storage

LinBox dense or sparse vector of field elements

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Constructor & Destructor Documentation

Permutation	(	Storage &	indices,
		const Field &	F = Field()
	)		[inline]

Constructor from a vector of indices.

This constructor creates a permutation matrix based on a vector of indices

Parameters:

F
indices	Vector of indices representing the permutation

Permutation	(	int	n,
		const Field &	F = Field()
	)		[inline]

Constructor from a dimension.

This constructor creates an n x n permutation matrix, initialized to be the identity

Parameters:

n	The dimension of hte matrix to create
F

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Member Function Documentation

OutVector& apply	(	OutVector &	y,
		const InVector &	x
	)		const [inline]

Application of BlackBox permutation matrix.

. Requires one vector conforming to the LinBox vector archetype. Required by abstract base class.

Returns:

reference to vector y containing output.

Parameters:

x	constant reference to vector to contain input
y

OutVector& applyTranspose	(	OutVector &	y,
		const InVector &	x
	)		const [inline]

Application of BlackBox permutation matrix transpose.

y= transpose(P)*x, equivalently y= P^-1*x Requires one vector conforming to the LinBox vector archetype. Required by abstract base class.

Returns:

reference to vector y containing output.

Parameters:

x	constant reference to vector to contain input
y	.

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

• permutation.h