This operation can also be done using the Board menu. True if win is alive, meaning it can get commands. A turtle is an object which is connected to a certain window. The heading is in degrees where 0 is upwards and adding to the heading means clock wise rotation. A turtle is always connected to a certain view, which is the view it is drawing on.
Turtles can move between views.
A predicate that is true if t is alive, meaning t can get commands. Returns the name of t . Will cause t to go forward 100 steps. Set the width of t 's pen to be n . The bigger n is the wider the pen will be.