create_interaction_term()

void syten::create_interaction_term	(	MPS::Lattice &	lat,
		std::string const &	sym,
		Index const	length,
		Index const	width,
		bool const	bpo_quiet,
		std::ostream &	out,
		std::function< Index(int, int)>	coord,
		std::function< Index(int)>	kfun,
		std::vector< Index >	idx
	)

Creates the interaction term in the lattice lat.