Texas Instruments TI-89 Titanium Short User Manual page 13

Keys
j
(Alpha)
Example: Access the VAR-LINK [All] screen, where you can manage
variables and Apps.
Press
2 °
Function keys
Use the function keys to perform the following operations:
• On the Apps desktop, open Apps and select or edit Apps categories.
• On the calculator Home screen, open toolbar menus to select math-
related operations.
• Within Apps, open toolbar menus to select App options.
Numeric keypad
The numeric keypad lets you enter positive and negative numbers.
To enter a negative number, press ? before typing the number.
Note: Don't confuse the negation key (?) with the subtraction key (|).
To enter a number in scientific notation:
1. Type the numbers that precede the exponent. (This value can be an
expression.)
Press 2 ^. The exponent symbol (í) follows the numbers you
2.
entered.
3. Type the exponent as an integer with up to three digits. (As the
following example shows, you can use a negative exponent.)
Getting Started
Description
Lets you type alphabetic characters without a
QWERTY keypad. Alpha characters are
printed above their corresponding keys in the
same color as the j key.
Result
7