2-d  numbers examples



1. Locations

	e.g. Position 8273


	components:
	
		X	x-value of position on a page
		Y	y-value of position on a page



2.	Ship tonnage
	
		
		Net weight		(weight without cargo. (check))
		Gross weight	(weight when full)

		


3.	
	account balance

	+1

		made up of two components

		+100
		-99

		full information is not conveyed by the single figure





4.
	Orientation

	Orientation of a 3-d object in space (e.g. looking upwards, looking
								to the left, etc.)


	rotation around x axis
	rotation around y axis
	rotation around z axis

	reference point A, x value
	reference point A, y value
	reference point A, z value

	reference point B, x value
	reference point B, y value
	reference point B, z value

	reference point C, x value
	reference point C, y value
	reference point C, z value








