cc.redberry.core.tensor

Class StructureOfContractions

java.lang.Object

cc.redberry.core.tensor.StructureOfContractions

public final class StructureOfContractions
extends java.lang.Object

This class represents the structure of product contraction.

Since:

1.0

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StructureOfContractions.Contraction

Field Summary

Fields

Modifier and Type	Field and Description
int	componentCount
int[]	components
long[][]	contractions
static StructureOfContractions	EMPTY_FULL_CONTRACTIONS_STRUCTURE
long[]	freeContractions

Method Summary

Modifier and Type	Method and Description
StructureOfContractions.Contraction[]	getContractedWith(int position)
static short	getFromIndexId(long contraction)
static short	getToIndexId(long contraction)
static int	getToTensorIndex(long contraction)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_FULL_CONTRACTIONS_STRUCTURE

public static final StructureOfContractions EMPTY_FULL_CONTRACTIONS_STRUCTURE

freeContractions

public final long[] freeContractions

contractions

public final long[][] contractions

components

public final int[] components

componentCount

public final int componentCount

Method Detail

getContractedWith

public StructureOfContractions.Contraction[] getContractedWith(int position)

getToTensorIndex

public static int getToTensorIndex(long contraction)

getToIndexId

public static short getToIndexId(long contraction)

getFromIndexId

public static short getFromIndexId(long contraction)