Package org.ejml.dense.row.misc

Class RrefGaussJordanRowPivot_DDRM

java.lang.Object

org.ejml.dense.row.misc.RrefGaussJordanRowPivot_DDRM

All Implemented Interfaces:

ReducedRowEchelonForm<DMatrixRMaj>, ReducedRowEchelonForm_F64<DMatrixRMaj>

public class RrefGaussJordanRowPivot_DDRM
extends Object
implements ReducedRowEchelonForm_F64<DMatrixRMaj>

Reduction to RREF using Gauss-Jordan elimination with row (partial) pivots.

Constructor Summary

Constructors

Constructor	Description
RrefGaussJordanRowPivot_DDRM()

Method Summary

Modifier and Type	Method	Description
void	reduce(DMatrixRMaj A, int coefficientColumns)	Puts the augmented matrix into RREF.
void	setTolerance(double tol)	Specifies tolerance for determining if the system is singular and it should stop processing.
protected static void	swapRows(DMatrixRMaj A, int rowA, int rowB)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RrefGaussJordanRowPivot_DDRM

public RrefGaussJordanRowPivot_DDRM()

Method Details

setTolerance

public void setTolerance(double tol)

Description copied from interface: ReducedRowEchelonForm_F64

Specifies tolerance for determining if the system is singular and it should stop processing. A reasonable value is: tol = EPS/max(||tol||).

Specified by:

setTolerance in interface ReducedRowEchelonForm_F64<DMatrixRMaj>

Parameters:

tol - Tolerance for singular matrix. A reasonable value is: tol = EPS/max(||tol||). Or just set to zero.

reduce

public void reduce(DMatrixRMaj A,
 int coefficientColumns)

Description copied from interface: ReducedRowEchelonForm

Puts the augmented matrix into RREF. The coefficient matrix is stored in columns less than coefficientColumns.

Specified by:

reduce in interface ReducedRowEchelonForm<DMatrixRMaj>

Parameters:

A - Input: Augmented matrix. Output: RREF. Modified.

coefficientColumns - Number of coefficients in the system matrix.

swapRows

protected static void swapRows(DMatrixRMaj A,
 int rowA,
 int rowB)