25
Using the Calculator function
The built-in calculator in the Electronic Dictionary can perform twelve-digit
arithmetic calculations with memory function. To access the Calculator function,
press
a
.
Prior to initiating calculations
• Before performing any calculation, press
@ @ b
to clear the
memory and the display.
• To start a calculation with a negative number, place a subtraction sign by
pressing
-
at the beginning of the calculation.
• If you wish to correct a wrong entry, press
!
and re-enter the figure.
• In the calculation examples found in this section, indications and icons that may
appear on the screen (‘=’, ‘M+’, ‘M-’, ‘+’, ‘-’, ‘x’, and ‘÷’) are abbreviated or are not
shown. These icons appear to show you the interim result of calculations. For
example, the ‘=’ icon appears on the screen when
=
or
%
is pressed, while
icons such as ‘M+’ and ‘+’ appear after each corresponding key has been
pressed.
• An ‘M’ is shown when a value other than 0 is put in the memory. To clear the
content of the memory, press
@
twice. Note that the pressing of
$
or
#
also functions as
=
.
• Press
to enter ‘=’. To input ‘.’ (decimal point), press
.
• An error message ‘E’ is displayed if:
• the integer section of a calculation result exceeds 12 digits
• the memory exceeds 12 digits
• an attempt is made to divide a number by zero.
Press
!
to clear the error condition.
Calculation examples
Example
(–24)
÷
4 – 2 =
34 + 57 =
45 + 57 =
68
×
25 =
68
×
40 =
What is 10% of 200?
What percentage is 9 of 36?
200 + (200
×
10 %) =
500 – (500
×
20 %) =
(4
3
)
2
=
1/8
25
×
5 =
–) 84
÷
3 =
+) 68 + 17 =
(Total) =
135
×
(12 + 14) =
(12 + 14)
÷
5 =
123456789098
×
145 =
Operation
! -
24
/
4
-
2
=
34
+
57
=
The second figure (57)
45
=
becomes the constant.
(Subtraction and division are performed in
the same way as above.)
68
*
25
=
The first figure (68)
40
=
becomes the constant.
200
*
10
%
9
/
36
%
200
+
10
%
500
-
20
%
4
*
=
=
*
=
8
/
=
@
@
25
*
5
$
84
/
3
#
68
+
17
$
@
@
@
12
+
14
$
135
*
@
=
@
/
5
=
@
@ b
123456789098
*
145
=
!
Display
–8.
91.
102.
1,700.
2,720.
20.
25.
220.
400.
4,096.
0.125
M
125.
M
28.
M
85.
M
182.
M
26.
M
3,510.
M
5.2
0.
E
17.9012344192
17.9012344192
(17.9012344192
×
10
12
= 17901234419200)
