cc.redberry.core.transformations.collect

Class CollectTransformation

java.lang.Object

cc.redberry.core.transformations.collect.CollectTransformation

All Implemented Interfaces:

Transformation

public class CollectTransformation
extends java.lang.Object
implements Transformation

Collects together terms that involve the same powers of objects matching specified simple tensors or tensor fields.

Since:

1.1.5

Nested Class Summary

Nested classes/interfaces inherited from interface cc.redberry.core.transformations.Transformation

Transformation.Util

Field Summary

Fields inherited from interface cc.redberry.core.transformations.Transformation

INDENTITY

Constructor Summary

Constructors

Constructor and Description
CollectTransformation(SimpleTensor... patterns) Creates Collect transformation that collects together terms that involve the same powers of objects matching specified simple tensors or tensor fields.
CollectTransformation(SimpleTensor[] patterns, Transformation[] transformations) Creates Collect transformation that collects together terms that involve the same powers of objects matching specified simple tensors or tensor fields and applies specified transformations to the expression that forms the coefficient of each term obtained.

Method Summary

Modifier and Type	Method and Description
Tensor	transform(Tensor t) Transforms specified tensor and returns the result.

Methods inherited from class java.lang.Object

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

Constructor Detail

CollectTransformation

public CollectTransformation(SimpleTensor[] patterns,
                             Transformation[] transformations)

Creates Collect transformation that collects together terms that involve the same powers of objects matching specified simple tensors or tensor fields and applies specified transformations to the expression that forms the coefficient of each term obtained.

Parameters:

patterns - specified simple tensors or tensor fields

transformations - transformations to be applied to the expression that forms the coefficient of each term obtained

CollectTransformation

public CollectTransformation(SimpleTensor... patterns)

Creates Collect transformation that collects together terms that involve the same powers of objects matching specified simple tensors or tensor fields.

Parameters:

patterns - specified simple tensors or tensor fields

Method Detail

transform

public Tensor transform(Tensor t)

Description copied from interface: Transformation

Transforms specified tensor and returns the result.

Specified by:

transform in interface Transformation

Parameters:

t - tensor

Returns:

transformed tensor