◆ descendantNormaliseNode()

SRDef syten::T3N::Operator::descendantNormaliseNode ( Ptrc  ptr,
TruncationType const &  type,
SRDef const  threshold,
LegType const  which 

Normalises the node pointed to by ptr to the which-th direction.

It gives an identity when contracted with the leg left open.

References SYTEN_ASSERT_DEBUG, and syten::Caching::threshold.

Referenced by truncate_rec().

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