Operation Manual

Operating the TI
.
82 1-19
8201OPER.DOC TI-82, Chapter 1, English Bob Fedorisko Revised: 02/09/01 12:18 PM Printed:
02/09/01 12:35 PM Page 19 of 22
VARS and Y-VARS Menus
Occasionally you may want to access the names of functions and system
variables to use in an expression or to store to them directly. Use the VARS or
Y
.
VARS menus to access the names of variables such as Xmin and functions
such Y
1
.
VARS Menu
The
VARS
menu accesses the names of
WINDOW
variables such as
Xmin
and
Tstep
, the user-defined
ZOOM
variables such as
ZXmin
, graph
databases and graph pictures such as
GDB1
and
Pic2
, statistics variables
such as
v
,
RegEQ
and
Q
1
, and table variables such as
TblMin
.
Press

to display the
VARS
menu. Some of the items access more than
one menu of variable names.
VARS
1: Window
…
Names of
X/Y
,
T/
q
,
U/V
variables
2: Zoom
…
Names of
ZX/ZY
,
ZT/Z
q
,
ZU
variables
3: GDB
…
Names of
GDB
n
variables
4: Picture
…
Names of
Pic
n
variables
5: Statistics
…
X/Y
,
G
,
EQ
,
BOX
,
PTS
variables
6: Table
…
Names of
Table
variables
Y-VARS Menu
The
Y-VARS
menu accesses the names of functions and the instructions to
select or deselect functions from a program or the Home screen.
Press
y
ã
Y-VARS
ä
to display the
Y-VARS
menu.
Y-VARS
1: Function
…
Displays names of
Y
n
functions
2: Parametric
…
Displays names of
X
n
T
,
Y
n
T
functions
3: Polar
…
Displays names of
r
n
functions
4: Sequence
…
Displays names of
U
n
,
V
n
functions
5: On/Off
…
Lets you select/deselect functions
Accessing a Name from a VARS or Y-VARS Menu
1. Press

or
y
ã
Y-VARS
ä
. The
VARS
or
Y-VARS
menu is displayed.
2. Select the type of name you want;
Picture...
or
Polar...
, for example.
¦
In
VARS
, use
~
or
|
to move to the menu you want, if necessary.
¦
In
Y-VARS
, a single menu is displayed.
3. Select the name you want from the menu. It is copied to the cursor
location.