Texas Instruments TI-89 Guide Book

Chapter 18: Text Editor 327
18TXTED.DOC TI-89/TI-92 Plus: Text Editor (English) Susan Gullord Revised: 02/23/01 1:15 PM Printed: 02/23/01 2:18 PM Page 327 of 18
Several keys let you access lowercase and uppercase Greek letters.
For example:
On the TI
.
89: On the TI
.
92 Plus:
1. Press
¥
c
to access the
Greek character set.
2. Press
¥ c j
+
letter
to
access lowercase Greek
letters. Example:
¥
c j
[W]
displays ω
3. Press
¥
c ¤
+
letter
to
access uppercase Greek
letters. Example:
¥
c ¤
[W]
displays Ω
1. Press 2
G
to access the
Greek character set.
2. Press 2
G
+
letter
to access
lowercase Greek letters.
Example:
2
G W
displays ω
3. Press 2
G
¤
+
letter
to
access uppercase Greek
letters. Example:
2
G
¤
W
displays Ω
The exact keys that you press on the
TI
-
89
depend on whether alpha-
lock is on or off. For example:
On the TI
.
89, if: Then:
A
lpha-lock is off.
¥ c
X
or
¥ c j
X
displays ξ.
¥ c j
W
displays ω.
¥ c ¤
W
displays Ω.
Lowercase alpha-lock
(
2 ™
) is on.
¥ c
X
displays ξ.
¥ c
W
displays ω.
¥ c ¤
W
displays Ω.
Uppercase
ALPHA-LOCK
(
¤ ™
)
is on.
¥ c
X
displays ξ.
¥ c
W
displays Ω.
¥ c ¤
W
displays Ω.
For a list of all special characters, refer to Appendix B.
Important: If you press
j
on the
TI
-
89
to access
a Greek letter while alpha-
lock is on
,
it turns alpha-loc
k
off.
For a List of All
Special Characters
¤
is used for
uppercase letters.
j
is not required
for X, Y, Z, or T.

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA