Package cc.redberry.core.tensor

Data structures and algorithms for creating mathematical expressions.

See: Description

Interface Summary

Interface	Description
TensorBuilder	All tensors in the system are reduced to the general form.
TensorFactory	All tensors in the system are reduced to the general form.

Class Summary

Class	Description
AbstractSumBuilder	Abstract implementation of TensorBuilder for sums.
ApplyIndexMapping	Static methods to rename indices of tensors.
BasicTensorIterator	The implementation of Iterator<Tensor> based on Tensor Tensor.get(int) and Tensor.size() methods.
Expression	Representation of mathematical expression A = B.
ExpressionBuilder	Builder for expressions.
ExpressionFactory	Factory for expressions.
FastTensors	Utility rare, but fast methods with tensor modifications.
MultiTensor	Parent class for sums and products.
Power	Representation of mathematical power A^B.
PowerBuilder	TensorBuilder for powers.
PowerFactory	TensorFactory for powers.
PowersContainer
Product	Representation of product of mathematical expressions.
ProductBuilder	Implementation of product builder.
ProductContent	This class is a container of information about graph structure of product.
ProductFactory	Factory for products.
ScalarsBackedProductBuilder	Implementation of product builder, which puts similar scalar subproducts together.
SimpleTensor	Implementation of simple tensor.
Split	A container for indexless summand (with empty indices, but not necessary symbolic) and indexed factor (with non empty indices) parts of product, used to collect terms with similar factors in SumBuilder.
StructureOfContractions	This class represents the structure of product contraction.
StructureOfContractionsHashed	Representation of hashed graph of product.
Sum	Representation of sum.
SumBuilder	Basic builder for sums.
SumBuilderSplitingScalars
SumFactory	Factory for sums.
Tensor	Abstract class which defines common tensor properties and methods.
TensorContraction
TensorField	Representation of tensor field.
Tensors	Factory methods to create tensors.
TensorWrapper	Technical class.

Exception Summary

Exception	Description
TensorException

Package cc.redberry.core.tensor Description

Data structures and algorithms for creating mathematical expressions. Class Tensor is parent for all mathematical expressions. Each type of expressions strictly satisfies some standard form, which is defined in the corresponding TensorFactory and TensorBuilder. Thus, there is no public constructors in Tensor inheritors, and any expression should be created via factory or builder. Simple tensors and fields should be instantiated via corresponding static methods in Tensors class.

Since:

1.0

Author:

Dmitry Bolotin, Stanislav Poslavsky

See Also:

Tensor, TensorBuilder, TensorFactory