Sharp Elw531h Owners Manual

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y = 4 ÷ xandx =  2 + 3
OperationDisplay
23
4
Last Answer Memory
Automatically recalls the last answer calculated by pressing
Solve for x first and then solve for y using x.
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OperationDisplay
User-Defined Functions
Recall a function that was defined by the user.
APPLICATIONS:
Functions that you have previously defined, including those using 
common 2nd Function buttons, can be stored in D1~ D4 for 
later use, thus saving time on keystrokes.
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~
~
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Operation
Absolute Value
Returns an absolute value.
Display
3
–4
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23 [DEG mode]

Operation Display
 sinθ =ba
tanθ =bc
cosθ =ca
a
cb
θ
Trigonometric functions determine the ratio of three sides 
of a right triangle. The combinations of the three sides are 
sin, cos, and tan. Their relations are:
Trigonometric Functions
Calculates the sine of an angle.
Calculates the cosine of an angle.
Calculates the tangent of an angle.
The angle from a point 15 meters from
a building to the highest floor of the
building is 45°. How tall is the building?
45 15
15
View point...

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[DEG mode]

OperationDisplay
θ = sin-1b
a
θ = cos-1c
a
θ = tan-1b
c
c a
b
θ
10080
Arc Trigonometric Functions
Arc trigonometric functions, the inverse of trigonomet-
ric functions, are used to determine an angle from ratios
of a right triangle. The combinations of the three sides
are sin
-1, cos-1, and tan-1. Their relations are;
(arc sine) Determines an angle based on the ratio
b/a of two sides of a right triangle.
(arc cosine) Determines an angle based on the ratio
c/a for two sides of a right...

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Hyperbolic Functions
The hyperbolic function is defined by using natural exponents in trigo-
nometric functions.
Arc hyperbolic functions are defined by using natural logarithms in trigono-
metric functions.
APPLICATIONS:
Hyperbolic and arc hyperbolic functions are very useful in electrical 
engineering and physics.
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Rectangular coordinates
P (x,y) y
x
o y
x
y
P (r,
θ)
x
or
Polar coordinates
θ

[DEG mode]
OperationDisplay
73
7.623.2
Coordinate Conversion
θConverts rectangular coordinates to polar coordinates (x, y → r,   )
θConverts polar coordinates to rectangular coordinates (r,    → x, y)
Splits data used for dual-variable data input.
Determine the polar coordinates (r,   ) when the rectangu-
lar coordinates of Point P are (x = 7, y = 3).θ
APPLICATIONS:
Coordinate conversion is often used in mathematics and...

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Binary, Pental, Octal,  
Decimal, and Hexadecimal  
Operations (N-Base)
This calculator can perform conversions between numbers expressed in binary, pental, octal, 
decimal, and hexadecimal systems. It can also perform the four basic arithmetic operations, 
calculations with parentheses and memory calculations using binary, pental, octal, decimal, 
and hexadecimal numbers. In addition, the calculator can carry out the logical operations 
AND, OR, NOT, NEG, XOR, and XNOR on binary, pental, octal, and...

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OperationDisplay
Data table 1
No.
Score
No. of pupils 1   2   3   4   5   6   7   8
  30   40   50   60   70   80   90  100
 2   4   5   7  12  10   8   2
Select single-variable statistics mode
Statistics Functions
The statistics function is excellent for analyzing qualities of an event. Though primarily
used for engineering and mathematics, the function is also applied to nearly all other
fields including economics and medicine.
DATA INPUT AND CORRECTION
Enters data for statistical calculations....

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Calculates the average value of the data (sample data x).
Calculates the standard deviation for the data (sample data x).
Calculates the standard deviation of a data population (sample data x).
Displays the number of input data (sample data x).
Calculates the sum of the data (sample data x).
Calculates the sum of the data (sample data x) raised to the second power.
NOTE:
1. Sample data refers to data selected randomly from the population.
2.  Standard deviation of samples is determined by the sample...