Indices

The index classes

EinAbstractIndex: EinAbstractIndex is an abstract base class for tensor indices or sets of tensor indices
EinIndex: EinIndex is a one dimensional index and provides the normal way to interact with tensors
EinImplIndexSet: EinImplIndexSet implements a set of abstract tensor indices, and is only used by inheritors
EinMultiIndex: EinMultiIndex is a set of abstract tensor indices
: Algorithms for multi-index union, intersection, set and summation
EinMultiIndex einUnion(const EinMultiIndex &, const EinMultiIndex &): einUnion concatenates two multi-indices
EinMultiIndex einSection(const EinMultiIndex &, const EinMultiIndex &): einSection returns out those indices represented in both multi-indices
EinMultiIndex einSum(const EinMultiIndex &up, const EinMultiIndex &lo): einSum returns a summation set given two multi-indices
EinMultiIndex einSet(const EinMultiIndex &I): einSet returns the indices in I
EinIndexSpace: EinIndexSpace provides a concrete interface to index spaces
EinSymmIndexSet: EinSymmIndexSet is a symmetric set of abstract tensor indices, and is normally constructed with ampers and operator (bitwise and)
EinAsymmIndexSet: EinAsymmIndexSet is a symmetric set of abstract tensor indices, and is normally constructed with wedge operator (bitwise XOR)

The index classes

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