LUDecompositionResult (OpenGamma Strata)

All Superinterfaces:

DecompositionResult

All Known Implementing Classes:

LUDecompositionCommonsResult
```
public interface LUDecompositionResult
extends DecompositionResult
```
Contains the results of LU matrix decomposition.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double`	`getDeterminant()`	Return the determinant of the matrix.
`DoubleMatrix`	`getL()`	Returns the $\mathbf{L}$ matrix of the decomposition.
`DoubleMatrix`	`getP()`	Returns the rows permutation matrix, $\mathbf{P}$.
`int[]`	`getPivot()`	Returns the pivot permutation vector.
`DoubleMatrix`	`getU()`	Returns the $\mathbf{U}$ matrix of the decomposition.

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

- Method Detail
  - getL
```
DoubleMatrix getL()
```
    Returns the $\mathbf{L}$ matrix of the decomposition.
    $\mathbf{L}$ is a lower-triangular matrix.
    
    Returns:
    
    the $\mathbf{L}$ matrix
  - getU
```
DoubleMatrix getU()
```
    Returns the $\mathbf{U}$ matrix of the decomposition.
    $\mathbf{U}$ is an upper-triangular matrix.
    
    Returns:
    
    the U matrix
  - getP
```
DoubleMatrix getP()
```
    Returns the rows permutation matrix, $\mathbf{P}$.
    P is a sparse matrix with exactly one element set to 1.0 in each row and each column, all other elements being set to 0.0.
    The positions of the 1 elements are given by the pivot permutation vector.
    
    Returns:
    
    the $\mathbf{P}$ rows permutation matrix
    
    See Also:
    
    getPivot()
  - getPivot
```
int[] getPivot()
```
    Returns the pivot permutation vector.
    
    Returns:
    
    the pivot permutation vector
  - getDeterminant
```
double getDeterminant()
```
    Return the determinant of the matrix.
    
    Returns:
    
    determinant of the matrix