(84) :Pt-Off(y coordinate,x coordinate)
(89) :PtOff y-coordinate,x-coordinate

Turns the specified point off. Pt-On( turns the pixel on.

(84) :Pt-Off(x coordinate,y coordinate, type)
(89) :PtOff y-coordinate,x-coordinate, type

Turns off a mark on the Graph Screen centered at the specified point. If type is 1, it turns off a pixel; 2 it turns off a 3x3 pixel square (not including the center); 3 it turns off a 3x3 cross.


  • Draw
  • Points
  • 2:Pt-Off(



This program will turn on a pixel on at 5,5 then wait for Enter to be pressed and turn the pixel off.