Variable Names - Texas Instruments TI-80 Manual Book

Variable Names

On the TI.80 you can enter, name, and use several types of data: numeric values
(including fractions), lists, functions, and statistical plots.
Variables and
Defined Items
1-12 Operating the TI-80
The TI-80 uses both user-assigned and pre-assigned names for
variables and other items saved in memory.
Variable Type
Numeric values
(including fractions)
Lists
Functions
Parametric equations
Statistical plots
System variables
Programs have user-defined names also and share memory
with variables. Program names can be up to seven characters
long. Programs are entered and edited from the program
editor (Chapter 10).
You can store to lists (Chapter 8), system variables such as
(Chapter 4) or
XMAX
functions (Chapters 4 and 5) from the Home screen or from a
program. You can store to lists (Chapters 8 and 9) and
functions (Chapters 4 and 5) from editors. You can also store
to a list element (Chapter 8).
For more information about system variables, see Appendix A.
Names
, , ..., , q (single character only).
A B Z
L1 , L2 , L3 , L4 , L5
keyboard).
Y1 , Y2 , Y3 , Y4 (on the
FUNC mode).
X1î/Y1î X2î/Y2î
editor in
PARAM
PLOT1 , PLOT2
STAT PLOTS menu).
XMIN , XMAX , and others (on various
menus).
(Chapter 6), and all
TBLMIN
, L6 (on the
Y= editor in
, (on the
X3î/Y3î
mode).
, PLOT3 (on the
Y=
Y=