Texas Instruments TI-89 사용자 설명서

Operating the Calculator

175

To highlight multiple characters:

To replace or delete the highlighted characters:

Menus

To leave the keyboard uncluttered, the calculator uses menus to access many operations.
This section gives an overview of how to select an item from any menu. Specific menus

1. Move the cursor to either side of the

characters you want to highlight.

2. Hold

¤ and press A or B to highlight

characters left or right of the cursor.

1. Type the new characters.

2. Press

Note:

When you highlight characters to

replace, remember that some function
keys automatically add an open
parenthesis.

To replace sin( with
cos(, place the cursor
beside sin.

Hold

and press

B B B B