Table 1.

Syntax of the DSD language, in terms of strands A, gates G and systems D. Where present, the graphical representation below is equivalent to the program code above.

syntax		description
A		upper strand with domain concatenation S
		lower strand with domain concatenation S
G		double-stranded complex [S] with overhanging single strands <L>, <R> and {L'}, {R'}
	G1:G2	gates joined along a lower strand
	G1::G2	gates joined along an upper strand
D	A	strand A
	G	gate G
	D1 | D2	parallel systems D1, D2
	new N D	system D with private domain N
	X(ñ)	module X with parameters ñ