Texas Instruments TI-83 Manual Book page 155

Erasing Points
with Pt-Off(
Changing Points
with Pt-Change(
Drawing Points
from the Home
Screen or a
Program
To erase (turn off) a drawn point on a graph, follow these
steps.
1. Select
2:Pt.Off(
menu.
2. Move the cursor to the point you want to erase.
3. Press Í to erase the point.
To continue erasing points, repeat steps 2 and 3. To cancel
, press '.
Pt.Off(
To change (toggle on or off) a point on a graph, follow
these steps.
1. Select
3:Pt.Change(
menu.
POINTS
2. Move the cursor to the point you want to change.
3. Press Í to change the point's on/off status.
To continue changing points, repeat steps 2 and 3. To
cancel
Pt.Change(
(point on) turns on the point at (
Pt.On(
turns the point off.
mark is optional; it determines the point's appearance;
specify , , or , where:
1 2 3
= (dot; default)
1 ¦
x y[ mark]
Pt.On( , ,
x y[ mark]
Pt.Off( , ,
x y
Pt.Change( , )
Note: If you specified mark to turn on a point with
specify mark when you turn off the point with
does not have the mark option.
(point off) from the
(point change) from the
, press '.
toggles the point on or off.
Pt.Change(
= (box)
2
›
)
)
DRAW
DRAW POINTS
DRAW
=x, =y).
X Y Pt.Off(
= (cross)
3 +
Pt.On(
, you must
Pt.Off( Pt.Change(
.
Instructions 8-15