cc.redberry.core.utils

Class MatrixUtils

java.lang.Object

cc.redberry.core.utils.MatrixUtils

public final class MatrixUtils
extends java.lang.Object

Utils fot matrices.

Since:

1.1.7

Method Summary

Modifier and Type	Method and Description
static boolean	isCovector(SimpleTensor tensor, IndexType type) Returns whether specified tensor is covector of specified type.
static boolean	isGeneralizedMatrix(SimpleTensor tensor, IndexType type, int upper, int lower) Returns whether specified tensor is matrix of specified type and with specified signature.
static boolean	isMatrix(SimpleTensor tensor, IndexType type) Returns whether specified tensor is matrix of specified type.
static boolean	isVector(SimpleTensor tensor, IndexType type) Returns whether specified tensor is vector of specified type.

Methods inherited from class java.lang.Object

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

Method Detail

isGeneralizedMatrix

public static boolean isGeneralizedMatrix(SimpleTensor tensor,
                                          IndexType type,
                                          int upper,
                                          int lower)

Returns whether specified tensor is matrix of specified type and with specified signature.

Parameters:

tensor - simple tensor

type - type of matrix

upper - number of upper matrix indices

lower - number of lower matrix indices

Returns:

true if specified tensor is matrix of specified type and with specified signature and false in other case

isMatrix

public static boolean isMatrix(SimpleTensor tensor,
                               IndexType type)

Returns whether specified tensor is matrix of specified type.

Parameters:

tensor - simple tensor

type - type of matrix

Returns:

true if specified tensor is matrix of specified type and false in other case

isVector

public static boolean isVector(SimpleTensor tensor,
                               IndexType type)

Returns whether specified tensor is vector of specified type.

Parameters:

tensor - simple tensor

type - type of matrix

Returns:

true if specified tensor is vector of specified type and false in other case

isCovector

public static boolean isCovector(SimpleTensor tensor,
                                 IndexType type)

Returns whether specified tensor is covector of specified type.

Parameters:

tensor - simple tensor

type - type of matrix

Returns:

true if specified tensor is covector of specified type and false in other case