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Operating the TI-80 1-19
You may want to use the names of system variables (such as XMIN) and
functions (such as Y1) in an expression. You may also want to store values
directly to those variables. Use the VARS or Y
.
VARS menus to access the
names.
The
VARS
menu displays the names of window variables such
as
XMIN
and
TSTEP
, statistics variables such as
v
and
Q1
, and
table variables such as
TBLMIN
.
Press
L
to display the
VARS
menu. Some of the items
display more than one menu of variable names.
VARS
1: WINDOW...
Names of
X
,
Y
,
and
T
variables.
2: STATISTICS...
X/Y
,
G
,
EQ
, and
BOX
variables.
3: TABLE...
TBLMIN
and
@
TBL
variables.
4: SIMPFACTOR...
Factor last used by
ú
SIMP
function.
The
Y
.
VARS
menus display the names of functions and the
instructions to select or deselect functions from a program or
the Home screen.
Press
2
G
to display the
Y
.
VARS
menu. Then press
9
or
6
to select the type of variable you want.
Y
Displays a menu of names of Y
n
functions.
XT
à
YT
Displays a menu of names of X
n
T
à
Y
n
T equations.
ON
à
OFF
Lets you select/deselect functions.
To copy a variable name from a
VARS
or
Y
.
VARS
menu:
1. Press
L
or
2
G
. The
VARS
or
Y
.
VARS
menu is
displayed.
2. Select the type of variable you want.
3. Press
¸
to select the name you want from the menu. It
is copied to the cursor location.
The VARS and Y
.
VARS Menus
VARS Menu
Y
.
VARS Menu
Copying a Name
from a VARS or
Y
.
VARS Menu