Texas Instruments TI-83-Plus User Manual

28 Chapter 2: TI-83 Plus Specific Information
TI-83 Plus Developer Guide Third Release May 28, 2002
Variable Name Spellings
There are two classes of variable names for the TI-83 Plus — predefined and user
defined. All variables are comprised of TI-83 Plus tokens, which are part of the include
file, TI83plus.inc.
Predefined Variable Names
These variable’s names are fixed by the TI-83 Plus and can only have a predetermined
data type.
Variables: A – Z and θ
θθ
θ
These variables can only be of type RealObj or CplxObj.
They are all spelled with one token, tA to tTheta, followed by two zeros.
Example: Real Variable A
OP1 +1 +2 +3 +4 +5 +6 +7 +8
RealObj
00h
tA
41h
00 00 ? ? ? ? ?
Example: Complex Variable θ
θθ
θ
OP1 +1 +2 +3 +4 +5 +6 +7 +8
CplxObj
0Ch
tTheta
5Bh
00 00 ? ? ? ? ?
List Variables: L1 – L6
These variables can be either ListObj or CListObj.
They are all spelled with two tokens followed by one zero.
The first token of the name is tVarLst, which labels it as a list variable name. The
second token signifies which predefined list name it is, tL1 – tL6.
Example: Complex List Variable L3
OP1 +1 +2 +3 +4 +5 +6 +7 +8
CListObj
0Dh
tVarLst
5Dh
tL3
02h
00 ? ? ? ? ?
Note: Lists can also be user-defined, see section entitled User-Defined Variable Names in this chapter.
Matrix Variables: [A] – [J]
These variables can only be type MatObj.

Texas Instruments TI-83-Plus Specifications

General

Brand	Texas Instruments
Model	TI-83-Plus
Category	Calculator
Language	English