22 Chapter 2: Operating the Calculator
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92 Plus (English) Susan Gullord Revised: 02/23/01 1:06 PM Printed: 02/23/01 2:11 PM Page 22 of 44
On the
TI
-
89
, 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 alpha-lock off. After you type the character, alpha-
lock remains on.
There are certain times when you do not need to press
j
or
2
™
to type alphabetic characters on the
TI
-
89
. 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 Alpha-lock
Catalog dialog box
All commands are listed in alphabetical
order. Press a letter to go to the first
command that begins with that letter. See
page 44 for more information.
Units dialog box
In each unit category, type the first letter of a
unit or constant. See Chapter 4 for more
information.
Dialog boxes with entry
fields
These include, but are not limited to:
Create
New Folder
,
Rename
, and
Save Copy As
. See
page 35 for more information about dialog
boxes.
Alpha-lock is
not
turned on in dialog boxes that require numeric-
only entries. The dialog boxes that accept only numeric entries are:
Resize Matrix
,
Zoom Factors
, and
Table Setup
.
Use the
2
¿
menu to select from a variety of special
characters. For more information, refer to “Entering Special
Characters” in Chapter 18.
Typing Alphabetic
Characters …
(continued)
Automatic Alpha-
Lock in TI-89 Dialog
Boxes
Note: To type a number,
press
j
to turn alpha-
lock off. Press
j
or
2
™
to resume typing
letters.
For Special
Characters
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