is_internal()

bool syten::IPEPS::is_internal	(	Coord const &	left,
		Coord const &	right,
		int const	width,
		int const	depth
	)

Returns true if an operator acting on sites [left,right] on a unit cell of size [width,depth] is internal to that unit cell.

Referenced by syten::IPEPS::FullUpdate::fast_update().

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