Texas Instruments Titanium TI-89 User Manual

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Expanding Expressions
Expanding ExpressionsExpanding Expressions
Expanding Expressions
Reducing Expressions
Reducing ExpressionsReducing Expressions
Reducing Expressions
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 Titanium TI-89 Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
Memory	188 KB RAM, 2.7 MB Flash ROM
Type	Graphing Calculator
Display	Monochrome
Processor	Motorola 68000
Processor Speed	12 MHz
Power Source	4 AAA batteries
Connectivity	USB
Programming	TI-BASIC, Assembly
Operating System	AMS (Advanced Mathematics Software)