The point2d command defines a random point whose
coordinates are integers between -5 and 5. This command takes a name
as an argument and assigns the point to the name. For example,
Input:
assigns A to a random point. Once assigned, the point
is fixed. The command can also take a sequence of names, and
will assign separate random points to each name. For example, to
generate a random triangle, finding three random points
Input:
and then use them for a triangle
Input: