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.

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.