mikera.matrixx.decompose

Interface ILUResult

All Known Subinterfaces:

ILUPResult

All Known Implementing Classes:

LUPResult

public interface ILUResult

Interface for results of LU decomposition

LU Decomposition refactors the original matrix such that:

*L*U = A

where L is a lower triangular matrix, U is an upper triangular matrix and A is the original matrix.

LU Decomposition is useful since once the decomposition has been performed linear equations can be quickly solved and the original matrix A inverted. Different algorithms can be selected to perform the decomposition, all will have the same end result.

Author:

Peter Abeles

Method Summary

Modifier and Type	Method and Description
double	computeDeterminant() Computes the determinant from the LU decomposition.
AMatrix	getL() Returns the L matrix from the decomposition.
AMatrix	getU() Returns the U matrix from the decomposition.

Method Detail

getL

AMatrix getL()

Returns the L matrix from the decomposition. This matrix will have ones on the leading diagonal.

Returns:

The L matrix.

getU

AMatrix getU()

Returns the U matrix from the decomposition.

Returns:

The U matrix.

computeDeterminant

double computeDeterminant()

Computes the determinant from the LU decomposition.

Returns:

The matrix's determinant.