LOGO Commands

Help Sheet

FD n

BK n

LT n

RT n

HOME

CS

HT

ST

PU Pen up

PD Pen down

REPEAT n []

Procedure name

WAIT n

Turtle

ARC length angle

circle radius

cleartext

hideturtle

Penwidth width

Print [ ]

reset

setheading angle

setX x

Set XY x y

SetY y

showturtle

The Sprite

The angle used to draw

Width of the circle

Delete text

Turtle is hidden

Thickness of the pen

Text appears on screen

Start again

Direction you want the turtle to move

Set turtle position on x axis

Move turtle to this point

Set turtle position on y axis

Turtle can be seen

Move forward n units

Move back n units

Turn left n degrees

Turn right n degrees

Return to centre of screen

Clear screen and go home

Hide turtle

Show turtle

(stops drawing)

(starts drawing)

Repeat n times contents of brackets

Run a pre-defined procedure

Wait for n milliseconds

The calculations

The arc tangent of x is defined as the inverse tangent function of x when x is real.

The length of the adjacent side

The length of the hypotenuse

A whole number (not a fractional number) that can be positive, negative or zero.

Return an integer in (0,n)

Round the number to the nearest whole number.

A trigonometric function of an angle.

The number that gives when multiplied by itself.

[1 2 3 5]

Return everything but the first item in the list.

Return everything but the last item in the list.

Return the first item in a list.

Return a new list with item at the front.

Retrieve the indexed item.

Return the last item in a list

Return a new list with item at the back.

Set the indexed item.

Maths

ARCTAN number

COS angle

INT number

RANDOM number

Round number

SIN angle

SQRT number

Lists

BUTFIRST list

BUTLAST list

FIRST list

FPUT thing list

ITEM index thing

LAST list

LPUT item list

SETITEM index list