Page 52 - ConceptGP_C2_Fb
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LOGO commands are called primitives. Let us learn to use some LOGO
primitives.
FORWARD COMMAND
Forward command is used for moving the turtle forward in the direction in
which it is pointing. The short form of Forward command is FD.
The command will be given as:
FD <space> (number of steps) <Enter>
For example, to move the turtle 40 steps ahead and draw a line, you have to
type the command as:
FD 40 <Enter>
RIGHT COMMAND
Right command turns the head of the
turtle towards the right side, i.e., in the
clockwise direction. Though the turtle
rotates, it stays at the same position.
The short form of Right command is RT.
The command will be given as:
RT <space> (number of turns)
<Enter>
For example, to turn the turtle by 90
turns toward right side, you will type the
command as:
BACKWARD COMMAND
RT 90 <Enter>
Backward command is used for moving the turtle in the direction opposite to It will turn the face of turtle in right direction by 90 turns.
which it is pointing. As the turtle moves backward, its head remains pointed in
the upward direction. The short form or Backward command is BK.
The command will be given as: LEFT COMMAND
Left command turns the head of the turtle towards the left side, i.e., in the
BK <space> (number of steps) <Enter>
For example, to move the turtle 50 steps back and draw a line, you have to anti-clockwise direction. Though the turtle rotates, it stays at the same position.
type the command as: The short form of Left command is LT.
BK 50 <Enter>
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