Texas Instruments TI-89 Titanium User Manual

Programming 566
Entering Comments
A comment symbol (¦) lets you enter a remark in a program. When you run the program,
all characters to the right of ¦ are ignored.
Ê
Description of the program .
Ë Description of expr.
Note:
Use comments to enter information that is useful to someone reading the program
code.
To enter the comment symbol, press:
• 8d
– or –
• Press „ and select
9:¦
Controlling the Flow of a Program
When you run a program, the program lines are executed in sequential order. However,
some commands alter the program flow. For example:
Ê
Ë
:prog1()
:Prgm
:¦Displays sum of 1 thru n
:Request "Enter an integer",n
:expr(n)!n:¦Convert to numeric expression
:------

Texas Instruments TI-89 Titanium Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
CPU	Motorola 68000
CPU Speed	16 MHz
RAM	256 KB
Flash ROM	2.7 MB
Programming Language	TI-BASIC, Assembly
Power Source	4 AAA batteries
Connectivity	I/O port
Dimensions	7.5 x 3.5 x 1 inches