Texas Instruments TI-89 Titanium Short User Manual

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Expanding Complex Numbers
Finding Prime Factors
Expanding Expressions
Reducing Expressions
Steps and keystrokes Display
Compute (3+5
i)
3
to see how the TI-89 Titanium
handles computations involving complex
numbers.
Press c 3 « 5 2 ) d Z 3 ¸
Steps and keystrokes Display
Compute the factors of the rational number
2634492. You can enter “factor” on the entry
line by typing
FACTOR on the keyboard, or by
pressing „ and selecting
2:factor(.
Press „ 2 2634492 d ¸
(Optional) Enter other numbers on your own.
Steps and keystrokes Display
Expand the expression (xN5)
3
. You can enter
“expand” on the entry line by typing
EXPAND
on the keyboard, or by pressing „ and selecting
3:expand(.
Press „ 3 c X | 5 d Z 3 d ¸
(Optional) Enter other expressions on your own.
Steps and keystrokes Display
Reduce the expression (x
2
N2xN5)/(xN1) to its
simplest form. You can enter “propFrac” on the
entry line by typing PROPFRAC on the keyboard,
or by pressing „ and selecting
7:propFrac(.
Press „ 7 c X Z 2 | 2 X | 5 d e c X | 1 d
d ¸

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