ClassPad 330 Plus Manual
20110401
1-6-10
Input 
Tip
•  As its name suggests, a single-character variable is a variable name that consists of a single 
character like “
a
” or “
x
”. Each character you input on the 
V
 keyboard is treated as a single-
character variable. To input multiple-character variable names like “ab” or multiple-character 
strings, you must use the alphabet (abc) keyboard. For more information, see “Using Single-
character Variables” on page 1-6-12.
•  For information about the 
D
 key that appears in the lower right of all of the math (mth) keyboard 
key sets, see “Using the Answer Variable (ans)” on page 2-2-2. 
k
 Using the Alphabet (abc) Keyboard 
In addition of the initial alphabet (abc) key set, you can also select from among three 
other key sets, within alphabet (abc), named 
M
 (character symbols), 
n
 (mathematics 
symbols), and 
S
 (extra symbols).
u
 Initial alphabet (abc) keyboard key set 
This keyboard is for inputting lower-case alphabetic characters. Tap 
L
 to shift the keyboard 
or 
E
 to caps lock the keyboard when you want to input upper-case characters. 
• Note that the initial alphabet (abc) keyboard uses the qwerty key arrangement, which is 
similar to a computer keyboard. You can also change to an azerty or qwertz arrangement. 
See “16-7 Specifying the Alphabetic Keyboard Arrangement”.
u
V
 key set 
Tapping the 
V
 key displays keys for inputting single-character variables, and changes 
the 
V
 softkey to 
I
. You can tap this key to toggle between 
V
 and the default 
9
keyboard. Tapping the 
E
 key switches to a key set for inputting upper-case single-
character variables. 
←
E
→










