The Essentials of Cartesian Coordinate System: Learning 3D Math Basic Cartesian Coordinates Using Cartesian coordinates gives us a means of identifying points in a numerical value system. An (x, y) pair defines this in two dimensions; in three, it expands to (x, y, z). Knowing how these coordinates relate to one another will help us to view and shape geometric forms, grasp where they are in space and in what direction. Cartesian coordinates let us travel in three dimensions. For those working in sectors like architecture, engineering and computer graphics, navigation via length, width, and height is extremely crucial. Knowing the link among these coordinates helps us to visualize and manipulate geometric forms, as well as their position and orientation in space. Surveying the Three-Dimensional Environment. Using three-dimensional space, Cartesian coordinates—that is, length, width, and height of a plane—can be n...