Casio FX300MS User Guide - Page 13

Basic Calculations

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• Press the number key (1 or 2) that corresponds to the setting you want to use. 1(Dot): Period decimal point, comma separator 2(Comma): Comma decimal point, period separator k Initializing the Calculator • Perform the following key operation when you want to initialize the calculation mode and setup, and clear replay memory and variables. A B 3(All) = Basic Calculations COMP k Arithmetic Calculations Use the F key to enter the COMP Mode when you want to perform basic calculations. COMP F 1 • Negative values inside of calculations must be enclosed within parentheses. For details, see "Order of Operations." • It is not necessary to enclose a negative exponent within parentheses. sin 2.34 ҂ 10-5 → S 2.34 e D 5 • Example 1: 3҂(5҂10-9) ҃ 1.5҂10-8 3 - 5 e D 9 = • Example 2: 5҂(9ѿ7) ҃ 80 5 - R 9 + 7 T = • You can skip all T operations before =. k Fraction Operations uFraction Calculations • Values are displayed in decimal format automatically whenever the total number of digits of a fractional value (integer + numerator + denominator + separator marks) exceeds 10. E-11

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E-11
COMP
• Press the number key (
1
or
2
) that corresponds to
the setting you want to use.
1
(Dot):
Period decimal point, comma separator
2
(Comma):
Comma decimal point, period separator
k
Initializing the Calculator
• Perform the following key operation when you want to
initialize the calculation mode and setup, and clear re-
play memory and variables.
A
B
3
(All)
=
Basic Calculations
k
Arithmetic Calculations
Use the
F
key to enter the COMP Mode when you
want to perform basic calculations.
COMP
.............................................................
F
1
•
Negative values inside of calculations must be enclosed
within parentheses. For details, see “Order of Operations.”
•
It is not necessary to enclose a negative exponent within
parentheses.
sin 2.34
±
10
–5
→
S
2.34
e
D
5
•
Example 1:
3
±
(5
±
10
–9
)
²
1.5
±
10
–8
3
-
5
e
D
9
=
•
Example 2:
5
±
(9
³
7)
²
80
5
-
R
9
+
7
T
=
•
You can skip all
T
operations before
=
.
k
Fraction Operations
u
Fraction Calculations
• Values are displayed in decimal format automatically
whenever the total number of digits of a fractional value
(integer + numerator + denominator + separator marks)
exceeds 10.