energy() [2/2]

SRDef syten::BTT::DMRG::Run::energy	(	Operator::Ptr	optr,
		State::Ptr	pptr,
		Ctrs::Ptr	cptr,
		BinaryTree::NodeType const	dir
	)

Forwarder to calculate the energy on the neighbouring node of that pointed to be the arguments in the given direction.