Chapter 1: Basics
23
Example 2:
To use the line input mode to input the same expression as in Example 1
(2
+ (2 (2) / ( (2) + 1))^2)
1. Tap the [Math1] tab and then enter the line input mode (light blue
key).
2. Perform the key operation below:
2+
(
d
2
!
2)
N
(
!
2)+1)
e
w
E
Example 3:
To use the template input mode to input
1. Tap the [Math2] tab and then enter the template input mode (white
L
key).
2. Perform the key operation below:
O
x
e
1
f
10
e
xE
Example 4:
To use the template input mode to input
1. Tap the [Math2] tab and then enter the template input mode (white
L
key).
2. Perform the key operation below:
7
(1-x
m
2
e
)
Q
x
ee
x
3. Tap the upper right input box of
∫
and then press
1
. Next, tap the lower
right input box of
∫
and then press
0
.
4. To execute the calculation, press
E
.
Tip:
For information about the contents and input formats of the functions in Example 3 and Example 4, see “2-7 Using
the Action Menu” (page 59).
k
Using Single-character Variables
As its name suggests, a single-character variable is a variable name that consists of a single character like
“
a
” or “
x
”. Input of single-character variable names is subject to different rules than input of a series of multiple
characters (like “abc”).
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 16)
• 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:
ABC
w
Y
(
)
∫
1
0
(1 −
2
)
