com.opengamma.strata.math.impl.linearalgebra

Interface QRDecompositionResult

All Superinterfaces:

DecompositionResult

All Known Implementing Classes:

QRDecompositionCommonsResult

public interface QRDecompositionResult
extends DecompositionResult

Contains the results of QR matrix decomposition.

Method Summary

Modifier and Type	Method and Description
DoubleMatrix	getQ() Returns the matrix $\mathbf{Q}$ of the decomposition.
DoubleMatrix	getQT() Returns the transpose of the matrix $\mathbf{Q}$ of the decomposition.
DoubleMatrix	getR() Returns the matrix $\mathbf{R}$ of the decomposition.

Methods inherited from interface com.opengamma.strata.math.linearalgebra.DecompositionResult

solve, solve, solve

Method Detail

getR

DoubleMatrix getR()

Returns the matrix $\mathbf{R}$ of the decomposition.

$\mathbf{R}$ is an upper-triangular matrix.

Returns:

the $\mathbf{R}$ matrix

getQ

DoubleMatrix getQ()

Returns the matrix $\mathbf{Q}$ of the decomposition.

$\mathbf{Q}$ is an orthogonal matrix.

Returns:

the $\mathbf{Q}$ matrix

getQT

DoubleMatrix getQT()

Returns the transpose of the matrix $\mathbf{Q}$ of the decomposition.

$\mathbf{Q}$ is an orthogonal matrix.

Returns:

the $\mathbf{Q}$ matrix