Texas Instruments TI-89 Titanium User Manual

Programming 594
Because a Goto command is unconditional (it always branches to the specified label), it
is often used with an
If command so that you can specify a conditional test. For example:
Ê
If x>5, branches directly to label GT5.
Ë For this example, the program must include commands (such as Stop) that prevent Lbl GT5
from being executed if x
{5.
Using Loops to Repeat a Group of Commands
To repeat the same group of commands successively, use a loop. Several types of loops
are available. Each type gives you a different way to exit the loop, based on a conditional
test.
F2 Control Toolbar Menu
Ê
Ë
:If x>5
: Goto GT5
:Disp x
:--------
:--------
:Lbl GT5
:Disp "The number was > 5”
To enter most of the loop-related commands,
use the Program Editor’s „
Control toolbar
menu.

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