Texas Instruments TI-89, TI-92

Chapter 17: Programming 275

17PROGRM.DOC TI-89/TI-92 Plus: Programming (English) Susan Gullord Revised: 02/23/01 1:14 PM Printed: 02/23/01 2:18 PM Page 275 of 40

Chapter 17:

Programming

Preview of Programming.......................................................................276

Running an Existing Program...............................................................278

Starting a Program Editor Session.......................................................280

Overview of Entering a Program..........................................................282

Overview of Entering a Function......................................................... 285

Calling One Program from Another..................................................... 287

Using Variables in a Program............................................................... 288

Using Local Variables in Functions or Programs.................................. 290

String Operations................................................................................... 292

Conditional Tests................................................................................... 294

Using If, Lbl, and Goto to Control Program Flow..............................295

Using Loops to Repeat a Group of Commands.................................. 297

Configuring the TI-89 / TI-92 Plus........................................................300

Getting Input from the User and Displaying Output......................... 301

Creating a Custom Menu....................................................................... 303

Creating a Table or Graph.....................................................................305

Drawing on the Graph Screen.............................................................. 307

Accessing Another TI-89 / TI-92 Plus, a CBL 2/CBL, or a CBR......... 309

Debugging Programs and Handling Errors.........................................310

Example: Using Alternative Approaches............................................ 311

Assembly-Language Programs............................................................. 313

This chapter describes how to use the TI-89 / TI-92 Plus’s Program

Editor to create your own programs or functions.

The chapter includes:

¦ Specific instructions on using the Program Editor itself and

running an existing program.

¦ An overview of fundamental programming techniques such as

If…EndIf structures and various kinds of loops.

¦ Reference information that categorizes the available program

commands.

¦ Obtaining and running assembly-language programs.

Note: For details and

examples of any

TI-89 / TI-92 Plus

program

command mentioned in this

chapter, refer to

Appendix A.