Page 67 - Computer Class 03
P. 67

Command : CS Enter/Execute
             Hideturtle (HT) :  Hideturtle command is used to hide the turtle from

             the screen.

             Command : HT Enter/Execute
             Showturtle  (ST)  :  Showturtle  command  is  used  to  make  the  turtle

             visible.

             Command:  ST Enter/Execute




               Always  give  one  space  between  the  command  and  the  input.  Otherwise
               your primitive will not work.



             There are some direction commands in Logo.  Using them, the turtle

             can be turned through any angle and then move in any direction.
             Let’s see how the turtle moves.

             Forward (FD)

             This command is used to move the turtle forward

             while drawing a line in the direction of its head.

             Command: FD space number of steps,
             Enter/Execute

             Example: Type FD 40 in the Command Input Box

             and press Enter or Execute.                                                           FD 40
             Output: The turtle will move 40 steps forward.

                                           Back (BK)


                                           This command is used to move turtle in the
                                           backward direction of its head.

                                           Command: BK space number of steps,

                                           Enter/Execute

                                           Example: Type BK 20 in the Command Input Box
                    BK 20                  and press Enter or Execute.

                                           Output: The turtle will move 20 steps backward.





                                                                                    Computer-3              67
   62   63   64   65   66   67   68   69   70   71   72