Table of Contents (continued)
ii
Third Release May 28, 2002 TI
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83 Plus Developer Guide
System Variables Area..................................................................19
System Variables that are Both Input and Output............................... 19
System Variable Characteristics .................................................. 19
Storing and Recalling System Variable Values................................... 20
System Variables that Are Output Only .............................................. 22
User RAM ...........................................................................................22
Variable Data Structures ...............................................................22
Numeric Based Data Types................................................................ 22
Real Data Type Structure............................................................. 23
Complex Data Type Structure...................................................... 23
Real List Data Type Structure ...................................................... 23
Complex List Data Type Structure ............................................... 24
Matrix Data Type Structure .......................................................... 24
Token Based Data Types ................................................................... 25
TI
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83 Plus Tokens......................................................................... 25
Program, Protected Program, Equation, New Equation, and String
Data Type Structures.......................................................................... 25
Screen Image Data Type Structure .................................................... 25
Graph Database Data Type Structure ................................................ 26
Unformatted AppVar Data Type Structure.......................................... 26
Guidelines for AppVar Usage....................................................... 26
Variable Naming Conventions.......................................................26
Variable Name Spellings..................................................................... 28
Predefined Variable Names................................................................ 28
Variables: A – Z and
θ
.................................................................. 28
List Variables: L1 – L6.................................................................. 28
Matrix Variables: [A] – [J] ............................................................. 28
Equation Variables: Y1 – Y0, X1t – X6t, Y1t – X1t, r1 – r6, u(n),
v(n), w(n) ...................................................................................... 29
String Variables: Str1 – Str0......................................................... 30
Picture Variables: Pic1 – Pic0 ...................................................... 30
Graph Database Variables: GDB1 – GDB0 ................................. 31
Variable: Ans ................................................................................ 31
User-Defined Variable Names ............................................................ 31
User-Named Lists......................................................................... 32
User-Named Programs ................................................................ 32
User-Named AppVars .................................................................. 33
Accessing User Variables Stored In RAM — (Unarchived)............33
Accessing Variables that Are Not Programs or AppVars...............33
Accessing Programs and AppVar Variables..................................34
Output from a Variable Search on the Symbol Table ......................... 34
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