RSEQ from to count					(library procedure)

	outputs a list of COUNT equally spaced rational numbers
	between FROM and TO, inclusive.

		? show rseq 3 5 9
		[3 3.25 3.5 3.75 4 4.25 4.5 4.75 5]
		? show rseq 3 5 5
		[3 3.5 4 4.5 5]