Casio fx-260 Учебное пособие - Страница 6
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- 1. Basic Functions and Operations
- 2. Basic Calculations
- 3. Constant Calculations
- 4. Fraction Calculations and Simplification
- 5. Percent Calculations
- 6. Powers and Roots
- 7. Internal Rounding
- 8. Memory Calculations
- 9. Trigonometric/Inverse Trigonometric Functions
- 10. Hyperbolic/Inverse Hyperbolic Functions
- 11. Coordinate Conversion
- 12. Logarithmic Functions
- 13. Entering and Analyzing Statistical Data
CASIO FX 260 SOLAR SCIENTIFIC CALCULATOR
Percent Calculations
Use the COMP mode for percentage calculations.
n
To find percentage of a
number. What is 12% of 15?
To calculate percentage of one
number to another. What per-
centage of 80 is 40?
To add a percentage: 15% of
1000 (or 1000 increased by 15%)
To discount a percentage:
85 by 10%.
Percent change: when a value is
increased from 30% to 36%
Percent of increase: when
an amount is added. 300cc is
added to 500cc
Powers and Roots
d
q„
1/x
q
---)]
q d
+ / –
q
x
1/y
q
15m12L
40M80L
1000m15L
85m10L
36-30L
300+500L
Squares a number. Example:
Cubes a number. Example:
Raises a number to a power (other than 2 or 3)
Example:
2
y
4p
x
Calculates the reciprocal of the displayed value.
1/x
Example:
3q
---)]
Calculates the square root of a number.
Example:
9qd
Calculates the cube root of a number.
Example:
27q
Calculates the specified root of a number.
Example: 27
, press
⅓
Example
%
p
%
p
%
p
%
p
5d
3q„
+ / –
x
1/y
27q
3p
%
p+
%
p
5
Display
1.8
50
1150
76.5
20
160