Texas Instruments Titanium TI-89 User Manual

Data/Matrix Editor 529
1. Move the cursor to any cell in the column and press †.
– or –
Move the cursor to the header cell (
c1, c2, etc.) and press ¸.
Notes:
• ¸ is not required if you want to type a new definition or replace the existing
one. However, if you want to edit the existing definition, you must press ¸.
• To view an existing definition, press † or move the cursor to the header cell
and look at the entry line.
2. Type the new expression, which replaces any existing definition.
If you used † or ¸ in Step 1, the cursor moved to the entry line and highlighted
the existing definition, if any. You can also:
• Press M to clear the highlighted expression. Then type the new expression.
– or –

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)