Texas Instruments Titanium TI-89 User Manual

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4. Change the screen’s view to show only
function variables.
Although this may not seem particularly
useful in an example with four variables,
consider how useful it could be if there
were many variables of all different types.
Press „ D D B 5 ¸
5. Highlight the
f function variable, and view
its contents.
Notice that the function was assigned
using
f(x) but is listed as f on the screen.
Press D 2 ˆ
6. Close the Contents window.
Press N
7. With the
f variable still highlighted, close
VAR-LINK to paste the contents of the
variable to the entry line. Notice that “(” is
pasted.
Press ¸
8. Complete the operation.
Press 2 d ¸
Steps and keystrokes Display
5…f(
5…f(2)

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)