The order of the objects in a list is important. Although loading the plots package may relieve us of a few keystrokes in writing down our work this should typicallybe foregone for the far greater advantage of portability and readability of our instructions. If such code requires that the plots package be loaded it wor't work as expected. The result can be large amounts of frustrationa and wasted time spent re-reading such material to see if perhaps it depends on packages having been loaded earlier in the worksheet. The ability of Maple to draw polygons in space provides us with the means to create images of any spatial object which consists of polygons.
Lets begin with one of the most familiar objects, a cube.
A cube has eight vertices , and six faces , each defined by a sequence of the vertices. It is very helpful to use a temporary, hand-drawn sketch or diagram. A polygon is an ordered list of coplanar points. An n-gon is a list of n different points. Two lists correspond to the same polygon if some circular permutation of one or yields the other or a reverse listing of the other .