Texas Instruments Titanium TI-89 User Manual

Calculator Home Screen 227
Evaluating a Function
Evaluating a FunctionEvaluating a Function
Evaluating a Function
Displaying and Editing a Function Definition
Displaying and Editing a Function DefinitionDisplaying and Editing a Function Definition
Displaying and Editing a Function Definition
You can use a user-defined function just as
you would any other function. Evaluate it by
itself or include it in another expression.
To: Do this:
Display a list of all
user-defined functions
Press
2 ° to display the VAR-LINK
screen. You may need to use the
„ View toolbar
menu to specify the Function variable type. (Refer
to Memory and Variable Management.)
– or –
Press:
@ ½ †
Display a list of Flash
application functions
Press:
@ ½ …

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)