Class RealSparseMatrixProperties

java.lang.Object

org.flag4j.linalg.ops.sparse.coo.real.RealSparseMatrixProperties

public final class RealSparseMatrixProperties
extends Object

This class contains low level implementations for methods to evaluate certain properties of a real sparse matrix. (i.e. if the matrix is symmetric).

Method Summary

Modifier and Type	Method	Description
static boolean	isAntiSymmetric(Shape shape, double[] data, int[] rowIndices, int[] colIndices)	Checks if a sparse COO matrix is symmetric.
static boolean	isCloseToIdentity(CooMatrix src)	Checks if a real sparse matrix is close to the identity matrix.
static boolean	isIdentity(CooMatrix src)	Checks if a real sparse matrix is the identity matrix.
static boolean	isSymmetric(Shape shape, double[] data, int[] rowIndices, int[] colIndices)	Checks if a sparse COO matrix is symmetric.

Methods inherited from class java.lang.Object

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

Method Details

isIdentity

public static boolean isIdentity(CooMatrix src)

Checks if a real sparse matrix is the identity matrix.

Parameters:

src - Matrix to check if it is the identity matrix.

Returns:

true if the src matrix is the identity matrix; false otherwise.

isCloseToIdentity

public static boolean isCloseToIdentity(CooMatrix src)

Checks if a real sparse matrix is close to the identity matrix.

Parameters:

src - Matrix to check if it is the identity matrix.

Returns:

true if the src matrix is the identity matrix; false otherwise.

isSymmetric

public static boolean isSymmetric(Shape shape,
 double[] data,
 int[] rowIndices,
 int[] colIndices)

Checks if a sparse COO matrix is symmetric.

Parameters:

shape - The shape of the COO matrix.

data - Non-zero entries of the COO matrix.

rowIndices - Non-zero row indices of the COO matrix.

colIndices - Non-zero column indices of the COO matrix.

Returns:

true if the specified COO matrix is symmetric (i.e. equal to its transpose); false otherwise.

isAntiSymmetric

public static boolean isAntiSymmetric(Shape shape,
 double[] data,
 int[] rowIndices,
 int[] colIndices)

Checks if a sparse COO matrix is symmetric.

Parameters:

shape - The shape of the COO matrix.

data - Non-zero entries of the COO matrix.

rowIndices - Non-zero row indices of the COO matrix.

colIndices - Non-zero column indices of the COO matrix.

Returns:

true if the specified COO matrix is symmetric (i.e. equal to its transpose); false otherwise.