ScalarMatrix Class Template Reference
[linbox/blackbox]

#include <scalar-matrix.h>

Inheritance diagram for ScalarMatrix:

List of all members.

---

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.

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

---

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.

---

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.

---

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

• /Users/was/s/spkg/build/linbox-20070207/linbox/linbox/blackbox/scalar-matrix.h

---