ScalarMatrix< _Field > Class Template Reference

Blackbox for aI. Use particularly for representing 0 and I. More...

#include <scalar-matrix.h>

Inheritance diagram for ScalarMatrix< _Field >:

List of all members.

Public Member Functions
	ScalarMatrix ()
	Constructs an initially 0 by 0 matrix.
	ScalarMatrix (const Field &F, const size_t n, const Element &s)
	ScalarMatrix (const Field &F, const size_t n, const typename Field::RandIter &iter)
template<class OutVector , class InVector >
OutVector &	apply (OutVector &y, InVector &x) const
template<class OutVector , class InVector >
OutVector &	applyTranspose (OutVector &y, InVector &x) const

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Detailed Description

template<class _Field>
class LinBox::ScalarMatrix< _Field >

Blackbox for aI. Use particularly for representing 0 and I.

This is a class of blackbox square scalar matrices. Each scalar matrix occupies O(scalar-size) memory. The matrix itself is not stored in memory, just the scalar and the dimensions.

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Constructor & Destructor Documentation

ScalarMatrix	(	const Field &	F,
		const size_t	n,
		const Element &	s
	)		[inline]

Scalar matrix Constructor from an element.

Parameters:

F	field in which to do arithmetic.
n	size of the matrix.
s	scalar, a field element, to be used as the diagonal of the matrix.

ScalarMatrix	(	const Field &	F,
		const size_t	n,
		const typename Field::RandIter &	iter
	)		[inline]

Constructor from a random element.

Parameters:

F	field in which to do arithmetic.
n	size of the matrix.
iter	Random iterator from which to get the diagonal scalar element.

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Member Function Documentation

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

Application of BlackBox matrix. y= A*x. Requires time linear in n, the size of the matrix.

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

Application of BlackBox matrix transpose. y= transpose(A)*x. Requires time linear in n, the size of the matrix.

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

• /build/buildd/linbox-1.1.6~rc0/linbox/blackbox/scalar-matrix.h