Tells the turtle to enter "wrap" mode. From now on, when the turtle is asked to move past the boundary of the FMSLogo screen window, it "wraps around" and reappears at the opposite edge of the window. The top edge wraps to the bottom edge, while the left edge wraps to the right edge. (So the window is topologically equivalent to a torus.) This is the turtle's initial mode.
WRAP FORWARD 950 RIGHT 90 WINDOW FORWARD 950 FORWARD 100