Texas Instruments Titanium TI-89 User Manual

Symbolic Manipulation 275
• Reformulate a problem to avoid fractional powers.
• Omit relatively small terms to find an approximation.
Special Constants Used in Symbolic Manipulation
Special Constants Used in Symbolic ManipulationSpecial Constants Used in Symbolic Manipulation
Special Constants Used in Symbolic Manipulation
The result of a calculation may include one of the special constants described in this
section. In some cases, you may also need to enter a constant as part of your entry.
true, false
true, falsetrue, false
true, false
These indicate the result of an identity or a
Boolean expression.
x=x is true for
any value of x.
5<3 is false.

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)