Table of Contents
Advertisement
U ing Single-character Variable
As its name suggests, a single-character variable is a variable name that consists of a single
a
x
character like "
" or "
". Input of single-character variable names is subject to different rules
than input of a series of multiple characters (like "abc").
To input a ingle-character variable name
Any character you input using any one of the following techniques is always treated as a
single-character variable.
• Tapping any key in the math (mth) keyboard's
• Tapping any key in the 2D keyboard's
• Tapping the
,
,
2D keyboard
• Pressing the
,
If you use the above key operations to input a series of characters, each one is treated as a
single-character variable. Inputting
expression a
b
c, and not as the characters "abc".
Tip
• The single-character variables described above make it possible for you to perform calculations
as they appear in your textbook.
Example 1:
Example 2:
Tip
• When you input a single-character variable, its name appears on the display as an italicized bold
character. This is simply to let you know that the letter is a single-character variable name.
1-6-12
Input
key set (page 1-6-17)
or
key to the left of the
, or
keypad key
,
,
20060301
key set (page 1-6-10)
key of the math (mth) keyboard or
, for example, is treated as the mathematical
Advertisement
Table of Contents
