Casio FX-CG10, User Manual

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Chapter 2
Manual Calculations
1. Basic Calculations
k
Arithmetic Calculations
• Enter arithmetic calculations as they are written, from left to right.
• Use the
-
key to input the minus sign before a negative value.
• Calculations are performed internally with a 15-digit mantissa. The result is rounded to a 10-
digit mantissa before it is displayed.
• For mixed arithmetic calculations, multiplication and division are given priority over addition
and subtraction.
Example Operation
56 × (–12) ÷ (–2.5) = 268.8
56
*
-
12
/
-
2.5
w
(2 + 3) × 10 2 = 500 (
2
+
3
)*
1
E
2
w
2 + 3 × (4 + 5) = 29 2
+
3
*(
4
+
5
w
* 1
4 × 5
6
=
10
3
(0.3)
$
6
c
4
*
5
w
<Linear input/output mode>
6
/(
4
*
5
)
w
* 1 Final closed parentheses (immediately before operation of the
w
key) may be omitted, no
matter how many are required.
k
Number of Decimal Places, Number of Significant Digits, Normal
Display Range
[SET UP]
-
[Display]
-
[Fix] / [Sci] / [Norm]
• Even after you specify the number of decimal places or the number of significant digits,
internal calculations are still performed using a 15-digit mantissa, and displayed values are
stored with a 10-digit mantissa. Use Rnd of the Numeric Calculation Menu (NUMERIC) (page
2-14) to round the displayed value off to the number of decimal place and significant digit
settings.
• Number of decimal place (Fix) and significant digit (Sci) settings normally remain in effect
until you change them or until you change the normal display range (Norm) setting.
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