Table of Contents
Advertisement
u To input a single-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 [Var] (variable) key set (page 19)
• Tapping the X, Y, or Z key of the [Number] key set
• Tapping the [ key of the [Math2] key set
• Pressing the x, y, or Z keypad key
If you use the above key operations to input a series of characters, each one is treated as a single-character
variable. Inputting A, B, C using the [Var] key set, for example, is treated as the mathematical 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: ABCw
Example 2: 2xyE
Tip:
When you input a single-character variable, its name appears on the display as an italicized character. This is simply
to let you know that the letter is a single-character variable name.
u To input a series of multiple characters
A series of multiple characters (like "list1") can be used for variable names, program commands, comment text,
etc. Always use the [abc] key set when you want to input a series of characters.
Example: abcE
You can also use the [abc] key set to input single-character variable names. To do so, simply input a single
character, or follow a single character with a mathematical operator.
Example: a*b+cE
Tip:
A single-character variable you input using the [abc] key set is identical to a single-character variable you input using
the [Var] key set.
k Using the Alphabet Keyboard
Tap the [abc] tab to the left of the soft keyboard to display the alphabet
keyboard [abc] key set. In addition to the [abc] key set, you can also select
from among three other key sets named [αβγ] (character symbols), [Math]
(mathematics symbols), and [Symbol] (extra symbols).
Use the tabs above the alphabet keyboard (to the right of the keyboard when
using horizontal screen orientation) to select a key set. To return to the [Math1]
key set from the alphabet keyboard, tap the I key in the lower left corner.
Chapter 1: Basics 26
Advertisement
Table of Contents
