Sharp EL-738XT, Operation Manual

Page: 13 / 88

11
Chapter 2
General Information
Basic Calculations
Entering numbers and arithmetic operations
• Use the number keys
0
to
9
, decimal point key
.
,
and sign change key
,
to enter numbers into the calcula-
tor. To clear the display or entry, press
s
.
• Use the S key to enter a value in scientifi c notation.
• Use the arithmetic keys + - x 8 to perform the
standard arithmetic calculations of addition, subtraction, multi-
plication, and division. Press
= to perform each calculation.
• Use the
(
and
)
keys to place parentheses around
inner parts of expressions. The closing parenthesis
)
just
before
=
or
h
may be omitted.
• When you enter a series of operations in one sequence, the
calculator performs the calculation according to the priority
levels in calculation on page 81.
Example Key operation Result
45 + 285 ÷ 3 =
s
45
+
285
8
3
=
14000
18 + 6 =
15 – 8
(
18
+
6
) 8
(
15
-
8
=
343
42

(–5) + 120 =
42
x ,
5
+
120
=
*
1
(
5
,
)
-9000
(5

10
3
) ÷ (4

10
–3
) =
5
S
3
8
4
S
,
3
=
125000000
Clearing the Entry and Memories
The following methods of clearing the calculator (restoring de-
fault settings) are available:
*
1