In this demonstration, it is possible to change the positions of the three vectors, A, colored red, B, colored green, and C, colored yellow, by typing in the coordinates for each vector (in the form (x-coordinate, y-coordinate, z-coordinate)) in the appropriate textbox and pressing Enter. The plane given by A + sB + tC, with s and t each going from 0 to 1, is shown in gray. The plane through the origin parallel to this plane, given by sB + tC, is also shown in gray.