Texas Instruments TI-89 Titanium User Manual

Symbolic Manipulation 236
Typing the “With” Operator
To type the
“with” operator ( | ), press:
@ Í
Substituting for a Variable
For every occurrence of a specified variable,
you can substitute a numeric value or an
expression.
To substitute for multiple variables at the
same time, use the Boolean and operator.
First derivative of x
3
at x = 5

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