Texas Instruments TI89TITANIUM User Manual - Page 155
or uppercase ALPHA-lock for X, Y, Z, or T., Automatic Alpha-Lock in TI-89 Titanium Dialog Boxes
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• On the TI-89 Titanium, you do not need j or alpha-lock to type x, y, z, or t. But you must use ¤ or uppercase ALPHA-lock for X, Y, Z, or T. • On the TI-89 Titanium, alpha-lock is always turned off when you change applications, such as going from the Text Editor to the Home screen. On the TI-89 Titanium, while either type of alpha-lock is on: • To type a period, comma, or other character that is the primary function of a key, you must turn alpha-lock off. • To type a second function character such as 2 [, you do not need to turn alphalock off. After you type the character, alpha-lock remains on. Automatic Alpha-Lock in TI-89 Titanium Dialog Boxes There are certain times when you do not need to press j or 2 ™ to type alphabetic characters on the TI-89 Titanium. Automatic alpha-lock is turned on whenever a dialog box is first displayed. The automatic alpha-lock feature applies to these dialog boxes: Dialog box Catalog dialog box Units dialog box Dialog boxes with entry fields Alpha-lock All commands are listed in alphabetical order. Press a letter to go to the first command that begins with that letter. In each unit category, type the first letter of a unit or constant. See Constants and Measurement Units for more information. These include, but are not limited to: Create New Folder, Rename, and Save Copy As. Operating the Calculator 155