Texas Instruments TI-82 STATS Manual Book page 88

Setting the Viewing Window Variables
Storing to a
Window Variable
from the Home
Screen or a
Program
@X and @Y
3.12 Function Graphing
To store a value, which can be an expression, to a window
variable, begin on a blank line and follow these steps.
1. Enter the value you want to store.
2. Press ¿.
3. Press  to display the
4. Select
1:Window
secondary menu).
Press ~ to display the
secondary menu).
Press ~ ~ to display the
secondary menu).
5. Select the window variable to which you want to store a
value. The name of the variable is pasted to the current
cursor location.
6. Press Í to complete the instruction.
When the instruction is executed, the TI-82 STATS stores the
value to the window variable and displays the value.
The variables and
@X
( ) secondary menu) define the distance from the
1:Window X/Y
center of one pixel to the center of any adjacent pixel on a graph
(graphing accuracy).
, , and
Xmax Ymin Ymax
(Xmax N Xmin)
=
@X
94
You can store values to
are calculated from
menu.
VARS
to display the
Func
and
Par Pol
window variables (
Seq
(items and
8 9
@Y
and are calculated from
X Y
@ @
when you display a graph.
(Ymax N Ymin)
=
@Y
62
and . If you do,
@X @Y
, , , and
Xmin Ymin
@X @Y
(continued)
window variables (
window variables (
U/V/W
on the
VARS
,
Xmin
and
Xmax Ymax
.
X/Y
T/q