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8-16 DRAW Instructions
8308DRAW.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:29 PM Printed: 02/19/01 1:49
PM Page 16 of 20
A pixel is a square dot on the TI
-
83 display. The Pxl
.
(pixel)
instructions let you turn on, turn off, or reverse a pixel
(dot) on the graph using the cursor. When you select a
pixel instruction from the
DRAW POINTS
menu, the TI
-
83
returns to the home screen or the program editor. The
pixel instructions are not interactive.
Pxl
.
On( (pixel on) 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
.
Off( turns the pixel off. Pxl
.
Change( toggles the pixel on
and off.
Pxl
.
On(
row
,
column
)
Pxl
.
Off(
row
,
column
)
Pxl
.
Change(
row
,
column
)
pxl
.
Test(
(pixel test) returns 1 if the pixel at (
row
,
column
)
is turned on or 0 if the pixel is turned 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
)
On a Horiz split screen, the maximum value for
row
is 30
for
Pxl
.
On(, Pxl
.
Off(, Pxl
.
Change(, and pxl
.
Test(.
On a
G
.
T split screen, the maximum value for
row
is 50 and
the maximum value for
column
is 46 for
Pxl
.
On(, Pxl
.
Off(,
Pxl
.
Change(, and pxl
.
Test(.
Drawing Pixels
TI-83 Pixels
Turning On and
Off Pixels with
Pxl-On( and
Pxl-Off(
Using pxl-Test(
Split Screen