Casio fx-7400G PLUS Basic Operation - Manual (Page 5)

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
Abaa-(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
Ч (–12) ч (–2.5)
Afg*-bc/
-c.fw
(4) Exponential Expressions
Use the E key to input exponents.
Example (4.5
Ч 10 75 )
Ч (–2.3 Ч 10 –79 )
Ae.fEhf*-c.d
E-hjw
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. P.10