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2. MANUAL CALCULATIONS
2.1 BASIC CALCULATIONS
2.1.1 Arithmetic operations
Arithmetic operations are performed by pressing the keys in the same sequence as in the
G
formula.
For negative values, press
G
Example
23 + 4.5-53 =
23
+
56 x (-12) ÷ (-2.5) =
56
x
SHIFT
12369 x 7532 x 74103 =
12369
74103
(4.5 x 10
75
) x (-2.3 x 10
-79
) =
4.5
EXP
2.3
EXP
(2+3) x 10
2
=
(
1
EXP
(1 x 105) ÷7=
1
EXP
) ÷ 7-14285 =
(1x10
5
1
EXP
14285
For mixed arithmetic operations, multiplication and division are given priority over addition and
G
subtraction.
Example
3 + 5 x 6 =
3
+
7 x 8 - 4 x 5 =
7
x
1 + 2 - 3 x 4 ÷ 5 + 6 =
1
+
5
+
2.1.2 Parenthesis calculations
Example
100 - (2+3) x 4 =
100
x
2 + 3 x (4+5) =
2
+
)
EXE
(7-2) x (8+5) =
(
7
8
+
Copyright L
2002
EXIBOOK
before entering the value.
(-)
SHIFT
Key Operation
Display
4.5
53
-25.5
-
EXE
÷
12
268.8
(-)
SHIFT
2.5
(-)
EXE
x
7532
x
6.903680613
EXE
(-)
75
x
SHIFT
-03
79
-1.035
(-)
EXE
SHIFT
2
3
+
)
x
2
500.
EXE
÷
5
7
14285.71429
EXE
÷
5
7
-
0.7142857
EXE
Key Operation
Display
5
6
33.
x
EXE
8
4
5
36.
-
x
EXE
÷
2
3
4
6.6
-
x
6
EXE
Key Operation
Display
-
2
3
80.
(
+
)
4
EXE
3
4
+
5
29.
x
(
-
2
)
x
(
65.
5
)
EXE
Remarques
12
Results greater than 10
10
(10billion) or
less than 10
-2
(0.01) are displayed in
exponential form.
NORM1
The correct result cannot be derived by
+
entering
(
2
3
)
EXP
Be sure to enter
x
1 between the
and
in this example.
EXP
Internal calculations are calculated with
12 digits for a mantissa, and the result is
displayed rounded off to 10 digits.
Internally, however, the mantissa of the
result is 12 digits.
Remark
Remark
Closed
parentheses
occurring
immediately before operation of the
key may be omitted, no matter
EXE
how many are required.
A multiplication sign (x) occurring
immediately before an open parenthesis
can be omitted.
GB
2.
)
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