LaTridiagFactDouble Class Reference

#include <trfd.h>

List of all members.

Public Member Functions
	LaTridiagFactDouble ()
	LaTridiagFactDouble (int)
	LaTridiagFactDouble (LaTridiagFactDouble &)
	~LaTridiagFactDouble ()
LaTridiagMatDouble &	T ()
LaVectorLongInt &	pivot ()
int	size ()
LaVectorDouble &	diag (int)
const LaVectorDouble &	diag (int k) const
LaTridiagFactDouble &	ref (LaTridiagMatDouble &)
LaTridiagFactDouble &	ref (LaTridiagFactDouble &)
LaTridiagFactDouble &	copy (const LaTridiagMatDouble &)
LaTridiagFactDouble &	copy (const LaTridiagFactDouble &)

---

Detailed Description

Class for the LU factorization of a tridiagonal matrix.

See also:

LaTridiagMatDouble, LaTridiagMatFactorize()

Note: It is unclear whether the design of this class needs some rewriting. Currently this class is only usable for solving an equation system with a tridiagonal matrix.

As a code example for solving Ax=b with tridiagonal A, you would program the following lines:

LaTridiagMatDouble A(N); // define A
A.diag(0).inject(...); // fill the matrix with values
LaGenMatDouble B(N,1); // define right-hand-side B
B = ...; // fill B with values from somewhere
// To solve Ax=b:
LaTridiagFactDouble Afact;
LaGenMatDouble X(N,1);
LaTridiagMatFactorize(A, Afact); // calculate LU factorization
LaLinearSolve(Afact, X, B); // solve; result is in X

---

Constructor & Destructor Documentation

LaTridiagFactDouble::LaTridiagFactDouble

(

)

[inline]

LaTridiagFactDouble::LaTridiagFactDouble

(

int

N

)

[inline]

LaTridiagFactDouble::LaTridiagFactDouble

(

LaTridiagFactDouble &

F

)

[inline]

References LaVectorLongInt::copy(), and LaTridiagMatDouble::copy().

LaTridiagFactDouble::~LaTridiagFactDouble

(

)

[inline]

---

Member Function Documentation

LaTridiagMatDouble& LaTridiagFactDouble::T

(

)

[inline]

LaVectorLongInt& LaTridiagFactDouble::pivot

(

)

[inline]

int LaTridiagFactDouble::size

(

)

[inline]

LaVectorDouble & LaTridiagFactDouble::diag

(

int

k

)

[inline]

References LaTridiagMatDouble::diag().

const LaVectorDouble & LaTridiagFactDouble::diag

(

int

k

)

const [inline]

References LaTridiagMatDouble::diag().

LaTridiagFactDouble & LaTridiagFactDouble::ref

(

LaTridiagMatDouble &

A

)

[inline]

References LaTridiagMatDouble::ref(), LaGenMatLongInt::resize(), and LaTridiagMatDouble::size().

LaTridiagFactDouble & LaTridiagFactDouble::ref

(

LaTridiagFactDouble &

F

)

[inline]

References LaVectorLongInt::ref(), and LaTridiagMatDouble::ref().

LaTridiagFactDouble & LaTridiagFactDouble::copy

(

const LaTridiagMatDouble &

A

)

[inline]

References LaTridiagMatDouble::copy(), LaGenMatLongInt::resize(), and LaTridiagMatDouble::size().

LaTridiagFactDouble & LaTridiagFactDouble::copy

(

const LaTridiagFactDouble &

F

)

[inline]

References LaVectorLongInt::copy(), and LaTridiagMatDouble::copy().