AutoCAD 2008 User's
Guide > Create and Modify
Objects > Use Precision
Tools > Use Coordinates and
Coordinate Systems (UCS) >
Enter 2D Coordinates
Absolute and relative 2D Cartesian and polar coordinates determine precise locations of objects in a drawing.
You can use absolute or relative Cartesian (rectangular) coordinates to locate points when creating objects.
You can use absolute or relative polar coordinates (distance and angle) to locate points when creating objects.
