17
Basic Calculations
Chapter 2
(2) Parentheses Calculation Priority Sequence
Expressions enclosed inside parentheses are always given priority in a calculation.
Example 1
100 – (2 + 3)
!
4
A
baa-(c+d)
*e
w
Example 2
(7 – 2)
!
(8 + 5)
• A multiplication sign immediately in front of an open parenthesis can be omitted.
A
(h-c)(i+f)
w
• Any closing parentheses at the end of a calculation can be omitted, no matter
how many there are.
Parentheses are always closed in the operation examples presented in this manual.
(3) Negative Values
Use the
-
key to input negative values.
Example
56
!
(–12)
÷
(–2.5)
A
fg*
-
bc/
-
c.f
w
(4) Exponential Expressions
Use the
E
key to input exponents.
Example
(4.5
!
10
75
)
!
(–2.3
!
10
–79
)
A
e.f
E
hf*
-
c.d
E-
hj
w
The above shows what would appear when the exponential display range is set to
Norm 1. It stands for –1.035
!
10
–3
, which is –0.001035.
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