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