Operating the TI-83 1-13
8301OPER.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:09 PM Printed: 02/19/01 1:34
PM Page 13 of 24
On the TI.83 you can enter and use several types of data,
including real and complex numbers, matrices, lists,
functions, stat plots, graph databases, graph pictures, and
strings.
The TI.83 uses assigned names for variables and other
items saved in memory. For lists, you also can create your
own five-character names.
Variable Type Names
Real numbers A, B, . . . , Z, q
Complex numbers A, B, . . . , Z, q
Matrices ãAä, ãBä, ãCä, . . . , ãJä
Lists L1, L2, L3, L4, L5, L6, and user-
defined names
Functions Y1, Y2, . . . , Y9, Y0
Parametric equations X1T and Y1T, . . . , X6T and Y6T
Polar functions r1, r2, r3, r4, r5, r6
Sequence functions u, v, w
Stat plots Plot1, Plot2, Plot3
Graph databases GDB1, GDB2, . . . , GDB9, GDB0
Graph pictures Pic1, Pic2, . . . , Pic9, Pic0
Strings Str1, Str2, . . . , Str9, Str0
System variables Xmin, Xmax, and others
• You can create as many list names as memory will allow
(Chapter 11).
• Programs have user-defined names and share memory
with variables (Chapter 16).
• From the home screen or from a program, you can store
to matrices (Chapter 10), lists (Chapter 11), strings
(Chapter 15), system variables such as Xmax (Chapter
1), TblStart (Chapter 7), and all Y= functions (Chapters
3, 4, 5, and 6).
• From an editor, you can store to matrices, lists, and
Y= functions (Chapter 3).
• From the home screen, a program, or an editor, you can
store a value to a matrix element or a list element.
• You can use DRAW STO menu items to store and recall
graph databases and pictures (Chapter 8).
Using TI-83 Variable NamesVariables and
Defined Items
Notes about
Variables