LUDecomposition (powsybl 4.1.1 API)

All Superinterfaces:

AutoCloseable
```
public interface LUDecomposition
extends AutoCloseable
```
LU decomposition utility class. As some decomposition implementation may allocate resources that need to be released a try-with-resource block has to be used to ensure correct resource management.
```
 try (LUDecomposition decomposition = m.decomposeLU()) {
     decomposition.solve(...)
 }
 
```
Author:

Geoffroy Jamgotchian

See Also:

https://en.wikipedia.org/wiki/LU_decomposition

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`
`void`	`solve(double[] b)`	Solve A * x = b where b is a column vector.
`void`	`solve(DenseMatrix b)`	Solve A * x = b where b is a dense matrix.
`void`	`solveTransposed(double[] b)`	Solve AT * x = b where b is a column vector.
`void`	`solveTransposed(DenseMatrix b)`	Solve AT * x = b where b is a dense matrix.
`void`	`update()`	Method to call when matrix has been updated to refresh LU decomposition so that new data can be taken into account in next `solve(double[])` or `solve(DenseMatrix)`.

- Method Detail
  - update
```
void update()
```
    Method to call when matrix has been updated to refresh LU decomposition so that new data can be taken into account in next solve(double[]) or solve(DenseMatrix).
  - solve
```
void solve(double[] b)
```
    Solve A * x = b where b is a column vector.
    
    Parameters:
    
    b - a column vector
  - solveTransposed
```
void solveTransposed(double[] b)
```
    Solve AT * x = b where b is a column vector.
    
    Parameters:
    
    b - a column vector
  - solve
```
void solve(DenseMatrix b)
```
    Solve A * x = b where b is a dense matrix.
    
    Parameters:
    
    b - a matrix
  - solveTransposed
```
void solveTransposed(DenseMatrix b)
```
    Solve AT * x = b where b is a dense matrix.
    
    Parameters:
    
    b - a matrix
  - close
```
void close()
```
    Specified by:
    
    close in interface AutoCloseable