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PLOT command
varleson
diHerent
computers.

- .
Brnu avcan

You have to press
NEWLINE or RETURN after
inputting each number

Adding1to X
f and not to Y
On some | | plots a horizonta

ine —

m daeY .

PLOT(20,30)
SET 20,30 or

v.
h
ERA

be
3

ča
4

Adding 1to Y
and not to X plots
a vertical line.

4
4 4 .

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a ŠE .
VIM a am prak URANA JOURANINJ (IN? — PE VEEbAFI
" bi H 4 2 s . |
zni VON can m ke the: VK vii
a J z. . 1 t '
Wo sa KRE a! na zz o pm on h o

a

vsa

X-8,Y--10

moves picture
up and leh.

Remember - some "Wi |

computersneeda  I4W RESET 20,30 8
general graphics HE

instruction.

picture —<

Aher writing the program it is easy to >ompuicaled on mi
You canalso switch a pixel off witha change the picture by altering the »gujprmeri such as a graphics tak
command such as UNPLOT (X, Y). Inthe numbers. You can move it to a diflerent Pla ing on the tabletund trace
programsin this book we use PLOT and place on the screen by changing the AE a specia] device c leda. >-
UNPLOT. H you have a computer check starting values, or multiply all the numbers m za ka automaticaliy read

lihe word MODE with a number." these commands in your manual. by three to make an "exploded image".
VFor the programs in this book use MODE 5 on the BBC micro with the plot command PLOT69, X, Y. A | m TV ZO NE NE JE TINE MPa |
For unplotting use PLOT 71, X Y. program

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