Operation Manual

DRAW
Operations 8-13
8208DRAW.DOC TI-82, Chapter 8, English Bob Fedorisko Revised: 02/09/01 12:23 PM Printed:
02/09/01 3:30 PM Page 13 of 16
Drawing Pixels
The Pxl (pixel) operations let you turn on, turn off, or reverse a pixel (a dot) on the
graph using the cursor. The instruction must be entered on the Home screen or
in the program editor.
TI
.
82 Pixels
Turning Pixels On and Off
The pixel instructions are not interactive.
Pxl
.
On(
(pixel on)
(
DRAW POINTS
item
9
) turns on the pixel at (
row
,
column
), where
row
is
an integer between 0 and 62 and
column
is an integer between 0 and 94.
Pxl
.
On(
row
,
column
)
Pxl
.
Off(
row
,
column
)
Pxl
.
Change(
row
,
column
)
pxl-Test(
pxl
.
Test(
(pixel test) (
DRAW POINTS
item
7
) returns 1 if a pixel
(
row
,
column
) is
On
or 0 if it is
Off
on the current graph.
row
must be an
integer between 0 and 62.
column
must be an integer between 0 and 94.
pxl
.
Test(
row
,
column
)
Split Screen
In
Split
screen
MODE
, the maximum value of
row
is 30 in
Pxl
.
On(
,
Pxl
.
Off(
,
Pxl
.
Change(
, and
pxl
.
Test(
.