Citizen SR-281N Manuale utente

File name : CBM_SR-281N_IB_English_black_v09330.doc

Date: 2009/3/30 Trimmed Size : 140 x 75 mm SCALE 1 : 1

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General Guide.............................................................................................2

Turning on or off .......................................................................................2

Battery replacement .................................................................................2

Auto power-off function.............................................................................2

Reset operation ........................................................................................2

Contrast adjustment .................................................................................2

Display readout.........................................................................................3

Before Starting Calculation........................................................................3

Using " MODE " keys................................................................................3

Using " 2nd " Keys....................................................................................4

Corrections ...............................................................................................4

Undo function ...........................................................................................4

Replay function.........................................................................................5

Memory calculation...................................................................................5

Order of operations...................................................................................6

Accuracy and Capacity.............................................................................7

Error conditions ........................................................................................9

Basic Calculations......................................................................................9

Arithmetic calculation................................................................................9

Parentheses calculations........................................................................10

Percentage calculation ...........................................................................11

Display notations .................................................................................... 11

Scientific Functional Calculations ..........................................................13

Logarithms and Antilogarithms ...............................................................13

Fraction calculation.................................................................................13

Angle unit conversions............................................................................14

Sexagesimal

↔

Decimal transformation.................................................15

Trigonometric / Inverse-Tri. functions......................................................15

Hyperbolic / Inverse-Hyp. functions ........................................................16

Coordinates transformation ....................................................................16

Probability...............................................................................................17

Other functions ( 1/x,

,

3

,

X

, x

2

, x

3

, x

y

, INT, FRAC )................18

Unit Conversion......................................................................................19

Physics constants...................................................................................19

Base–n calculations.................................................................................24

Bases conversions..................................................................................25

Block Function........................................................................................25

Basic arithmetic operations for bases .....................................................26

Negative expressions .............................................................................26

Logical operation ....................................................................................27

Statistical Calculations ............................................................................27

Entering data ..........................................................................................27

Displaying results....................................................................................28

Deleting data ..........................................................................................31

Editing data ............................................................................................31

FULL message .......................................................................................32

Complex Calculations..............................................................................32

Contents

File name : CBM_SR-281N_IB_English_black_v09330.doc

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General Guide

Turning on or off

To turn the calculator on, press [ ON/C ] ; To turn the calculator off,

press [ 2nd ] [ OFF ].

Battery replacement

The calculator is powered by two alkaline batteries (G13 or LR44).

When the display dims, replace the batteries. Be careful not to be

injured when you replace the battery.

1. Unscrew the screws on the back of the calculator.

2. Insert a flat bladed screwdriver into the slot between the upper and

lower case then carefully twist it to separate the case.

3. Remove both batteries and dispose of them properly. Never allow

children to play with batteries.

4. Wipe off the new batteries with a dry cloth to maintain good contact.

5. Insert the two new batteries with their flat sides (plus terminals) up.

6. Align the upper and lower cases then snap them to close together.

7. Tighten the screws.

Auto power-off function

This calculator automatically turns it off when not operated for

approximately 6~9 minutes. It can be reactivated by pressing [ ON/C ]

key and the display, memory, settings are retained.

Reset operation

If the calculator is on but you get unexpected results, press [ MODE ]

[ 4 ] ( RESET ) in sequence. A message appears on the display to

confirm whether you want to reset the calculator and clear memory

contents.

RESET : N Y

Move the cursor to " Y " by [ ], then press [=] to clear all variables,

pending operations, statistical data, answers, all previous entries, and

memory; To cancel the reset operation without clearing the calculator,

please choose " N ".

If the calculator is lock and further key operations becomes impossible,

please use a pointed object to press the reset hole to release the

condition. It will return all settings to default settings.

Contrast adjustment

Pressing the [ – ] or [ + ] following [ MODE ] key can make the contrast

of the screen lighter or darker. Holding either key down will make the

display become respectively lighter or darker.

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Display readout

The display comprises two lines and indicators. The upper line is a dot

display up to 128 characters. The lower line is capable of displaying a

result of up to 12 digits, as well as 2-digits positive or negative

exponent.

When formulas are input and executed the calculation by [=], they are

displayed on the upper line, and then results are shown on the lower

line.

The following indictors appear on the display to indicate you the

current status of the calculator.

Indicator Meaning

M Running memory

– Result is negative

E Error

STO Storing variable mode is active

RCL Recalling variable mode is active

2nd 2nd set of function keys are active

HYP Hyperbolic-trig function will be calculated

ENG Engineering symbol notation

CPLX Complex number mode is active

CONST Display physics constants

DEGRAD Angle mode : DEGrees, GRADs, or RADs

BIN Binary base

OCT Octal base

HEX Hexadecimal base

( ) Open parentheses

TAB Number of decimal places displayed is fixed

STAT Statistics mode is active

REG Regression mode is active

EDIT Statistics data is being edited

CPK CPK : Process capability

CP : Precision capability

USL Set upper specification limit

LSL Setting lower specification limit

i Imaginary part

Allow to use undo function

Before Starting Calculation

Using " MODE " keys

Press [ MODE ] to display mode menus when specifying an operating

mode ( " 1 MAIN ", " 2 STAT ", " 3 CPLX ", " 4 RESET " ) or the

engineering symbol notation ( " 5 ENG " ).

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1 MAIN : Use this mode for basic calculations, including scientific

calculations and Base–n calculations.

2 STAT : Use this mode to perform single–variable and

paired–variable statistical calculations and regression

calculations.

3 CPLX : Use this mode to perform complex number calculation.

4 RESET : Use this mode to perform reset operation.

5 ENG : Use this mode to allow engineering calculations utilizing

engineering symbol.

Give " 2 STAT " as an example :

Method 1 : Press [ MODE ] and then scroll through the menus using

[ ] or [ 2nd ] [ ] until " 2 STAT " is underlined,

then enter the desired mode by pressing [=].

Method 2 : Press [ MODE ] and then key in directly the number of

the mode, [ 2 ] , to enter the desired mode immediately.

Using " 2nd " Keys

When you press [ 2nd ], the " 2nd " indicator shown in the display is to

tell you that you will be selecting the second function of the next key

you press. If you press [ 2nd ] by mistake, simply press [ 2nd ] again to

remove the " 2nd " indicator.

Corrections

If you have made a mistake when entering a number (but you have not

yet pressed an arithmetic operator key), just press [ CE ] to clear the

last entry then input it again, or delete individual digits by the

backspace key [ ], or clear all entry by [ ON/C ].

After making corrections, input of the formula is complete, the answer

can be obtained by pressing [=]. You can also press [ ON/C ] to clear

the immediate results completely (except clearing memory). If you

press the wrong arithmetic operation key, just press the correct key to

replace it.

Undo function

The unit offers an undo function which allows you to undo some of the

errors you just have made.

When a character which is just deleted by [ ], an entry which is just

cleared [ CE ], or which is just cleared by [ ON/C ], the " " indicator

shown in the display is to tell you that you can press [ 2nd ] [ ] to

cancel the operation.

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Replay function

This function stores operations that just have been executed. After

execution is completed, pressing [ ] or [ 2nd ] [ ] key will

display the operation executed. Pressing [ ] will display the

operation from the beginning, with the cursor located under the first

character. Pressing [ 2nd ] [ ] will display the operation from the

end, with the cursor located at the space following the last character.

You can continue moving the cursor by [ ] or [ 2nd ] [ ] and

editing values or commands for subsequent execution.

Memory calculation

Memory variable

The calculator has nine memory variables for repeated use -- A, B, C,

D, E, F, M, X, Y. You can store a real number in any of the nine

memory variables.

• [ STO ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] lets you store values to

variables.

• [ RCL ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] recalls the value of the

variable.

• [ 0 ] [ STO ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] clears the content to a

specified memory variable.

¾

(1) Put the value 30 into variable A

DEG

30Æ A

30 [ STO ] [ A ]

30.

¾

(2) Multiple 5 to variable A, then put the result into variable B

DEG

5 ¼ A=

5 [ x ] [ RCL ] [ A ] [=]

150.

DEG

150Æ B

[ STO ] [ B ]

150.

¾

(3) Clear the value of variable B

DEG

0Æ B

0 [ STO ] [ B ]

0 .

DEG

B=

[ RCL ] [ B ] [=]

0 .

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Running memory

You should keep the following rules in mind when using running

memory.

• Press [ M+ ] to add a result to running memory and the " M "

indicator appears when a number is stored in the memory. Press

[ MR ] to recall the content of running memory.

• Recalling from running memory by pressing [ MR ] key does not

affect its contents .

• Running memory is not available when you are in statistics mode.

• The memory variable M and running memory utilize the same

memory area.

• In order to replace the content of the memory with the displayed

number, please press [ X M ] key.

• To clear the content of running memory, you can press [ 0 ] [ X M ],

[ ON/C ] [ X

M ] or [ 0 ] [ STO ] [ M ] in sequence.

¾

[ ( 3 x 5 ) + ( 56 7 ) + ( 74 – 8 x 7 ) ] = 41

DEG

0 [ X M ]

0 .

DEG

74–8¼ 7M+

3 [ x ] 5 [ M+ ] 56 [ ] 7 [ M+ ] 74

[ – ] 8 [ x ] 7 [ M+ ]

M

18.

DEG

M

[ MR ]

M

41.

DEG

0 [ X M ]

0 .

(Note) : Besides pressing [ STO ] or [ X M ] key to store a value, you

can also assign values to memory variable M by [ M+ ].

However, when [ STO ] [ M ] or [ X M ] is used, previous

memory contents stored in variable M are cleared and

replaced it with the newly assigned value. When [ M+ ] is used,

values is added to present sum in memory.

Order of operations

Each calculation is performed in the following order of precedence:

1) Fractions

2) Expression inside parentheses.

3) Coordinates transformation ( P R , R P )

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4) Type A functions which are required entering values before

pressing the function key, for example, x

2

,1/x,

π

, x!, %, RND,

ENG, , , x ', y ' .

5) x

y

,

X

6) Type B functions which are required pressing the function key

before entering, for example, sin, cos, tan, sin

–1

, cos

–1

, tan

–1

,

sinh, cosh, tanh, sinh

–1

, cosh

–1

, tanh

–1

, log, ln, FRAC, INT,

√

,

3

, 10

X

, e

X

, NOT, EXP, DATA in STAT mode.

7) +

/–

, NEG

8) nPr, nCr

9) x ,

10) +, –

11) AND, NAND –-- only Base–n mode

12) OR, XOR, XNOR --- only Base–n mode

Accuracy and Capacity

Output digits : Up to 12 digits.

Calculating digits : Up to 14 digits

In general, every reasonable calculation is displayed up to 12 digits

mantissa, or 12-digits mantissa plus 2-digits exponent up to 10

± 99

.

Numbers used as input must be within the range of the given function

as follow :

Functions

Input range

sin x

cos x

tan x

Deg :

x

<

4.5 x 10

10

deg

Rad :

x

<

2.5 x 10

8

π

rad

Grad :

x

<

5 x 10

10

grad

however, for tan x

Deg :

x

≠

90 (2n+1)

Rad :

x

≠

2

π

(2n+1)

Grad :

x

≠

100 (2n+1), (n is an integer)

sin

–1

x, cos

–1

x

≦

1

tan

–1

x

<

1 x 10

100

sinh x, cosh x

x

≦

230.2585092

tanh x

x

<

1 x 10

100

sinh

–1

x

<

5 x 10

99

cosh

–1

x

1 ≦ x

<

5 x 10

99

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tanh

–1

x

<

1

log x, ln x

1 x 10

–99

≦

x

<

1 x 10

100

10

x

–1 x 10

100

< x

<

100

e

x

–1 x 10

100

< x

≦

230.2585092

x

0

≦ x <

1 x 10

100

x

2

x

<

1 x 10

50

x

3

x

<

2.15443469003 x 10

33

1/x

x

<

1 x 10

100

, x

≠

0

3

x

<

1 x 10

100

x !

0

≦

x

≦

69, x is an integer.

R P

22

y+x

<

1 x 10

100

P R

0

≦

r

<

1 x 10

100

Deg

：

│

θ

│

<

4.5 x 10

10

deg

Rad

：

│

θ

│

<

2.5 x 10

8

π

rad

Grad

：

│

θ

│

<

5 x 10

10

grad

however, for tan x

Deg

：

│

θ

│

≠

90 (2n+1)

Rad：│

θ

│≠

2

π

(2n+1)

Grad

：

│

θ

│

≠

100 (2n+1), (n is an integer)

│D│, M, S

<

1 x 10

100

, 0

≦

M, S

x

<

1 x 10

100

x

y

x > 0 : –1 x 10

100

<

y log x

<

100

x = 0 : y > 0

x < 0 : y = n, 1/(2n+1), n is an integer.

but –1 x 10

100

< y log │x│

<

100

x

y

>

0 : x

≠

0, –1 x 10

100

<

x

1

log y

<

100

y = 0 : x > 0

y

<

0 : x=2n+1, l/n, n is an integer.(n≠0)

but –1 x 10

100

<

x

1

log

│

y

│

<

100

a

b

/c

Input：Total of integer, numerator and

denominator must be within 12 digits

(includes division marks)

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Result：Result displayed as fraction for

integer when integer, numerator and

denominator are less than 1 x 10

12

nPr, nCr

0

≦

r

≦

n, n

≦

10

100

, n,r are integers.

STAT

x

<

1 x 10

50

,

y

<

1 x 10

50

σ

x,

σ

y,

x

,

y

,a, b, r : n

≠

0 ;

Sx, Sy

：

n

≠

0, 1 ; x

n

= 50 ; y

n

= 50 ;

Number of repeats ≤ 255, n is an integer.

DEC

– 2147483648

≦

x

≦

2147483647

BIN

0

≦

x

≦

01111111111111111111111111111111

(for zero or positive)

10000000000000000000000000000000

≦

x

≦

11111111111111111111111111111111

(for negative)

OCT

0

≦

x

≦

17777777777 (for zero or positive)

20000000000

≦

x

≦

37777777777

(for negative)

HEX

0

≦

x

≦

7FFFFFFF ( for zero or positive)

80000000

≦

x

≦

FFFFFFFF (for negative)

Error conditions

Error message “

E

” will appear on the display and further calculation

becomes impossible when any of the following condition occur.

1) You attempted to divide by 0

2) When allowable input range of function calculations exceeds the

range specified

3) When result of function calculations exceeds the range specified

4) When the [ ( ] key is used more than 13 levels in a single

expression

5) When USL

<

LSL value

To release the above errors, please press [ ON/C ].

Basic Calculations

Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for basic calculations.

Arithmetic calculation

Arithmetic operations are performed by pressing the keys in the same

sequence as in the expression.

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¾

7 + 5 x 4 = 27

DEG

7+5¼ 4=

7 [ + ] 5 [ x ] 4 [=]

27.

For negative values, press [ +/– ] after entering the value; You can

enter a number in mantissa and exponent form by [ EXP ] key.

¾

2.75 x 10

– 5

= 0.0000275

DEG

2 . 75E–05=

2.75 [ EXP ] 5 [ +/– ] [=]

0 . 00002

75

Results greater than 10

12

or less than 10

–11

are displayed in

exponential form.

¾

12369 x 7532 x 74010 = 6895016425080

= 6.89501642508 x 10

12

DEG

12369¼ 7532¼ 7

12369 [ x ] 7532 [ x ] 74010

[=]

6 . 89501642508

12

Parentheses calculations

Operations inside parentheses are always executed first.

SR-281N

can use up to 13 levels of consecutive parentheses in a single

calculation.

Closed parentheses occurring immediately before operation of the [ ) ]

key may be omitted, no matter how many are required.

¾

2 x { 7 + 6 x ( 5 + 4 ) } = 122

DEG

2 ¼ (7+6¼ (5+4=

2 [ ( ] 7 [ + ] 6 [ ( ] 5 [ + ] 4 [=]

122.

(Note) : A multiplication sign " x " occurring immediately before an

open parenthesis can be omitted.

The correct result cannot be derived by entering [ ( ] 2 [ + ] 3 [ ) ] [ EXP ]

2. Be sure to enter [ x ] between the [ ) ] and [ EXP ] in the below

example.

¾

( 2 + 3 ) x 10

2

= 500

DEG

(2+3)¼ 1E02=

[ ( ] 2 [ + ] 3 [ ) ] [ x ] [ EXP ] 2

[=]

5

00.

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Percentage calculation

[ 2nd ] [ % ] divides the number in the display by 100. You can use this

key sequence to calculate percentages, add-ons, discounts, and

percentage ratios.

¾

120 x 30 % = 36

DEG

120¼ 30

%

=

120 [ x ] 30 [ 2nd ] [ % ] [=]

36.

¾

88 55 % = 160

DEG

88 55%=

88 [ ] 55 [ 2nd ] [ % ] [=]

160.

Display notations

The calculator has the following display notations for the display value.

Fixed-point / Floating Notations

To specify the number of decimal places, press [ 2nd ] [ TAB ] and

then a value indicating the number of places ( 0~9 ). Values are

displayed rounded off to the place specified. To return floating setting,

press [ 2nd ] [ TAB ] [ • ].

Scientific Notation

To change the display mode between floating and scientific notation,

press [ F

↔

E ].

Engineering Notation

Pressing [ ENG ] or [ 2nd ] [ ] will cause the exponent display for

the number being displayed to change in multiples of 3.

¾

6 7 = 0.85714285714…

DEG

6 7=

6 [ ] 7 [=]

0 . 85714285714

DEG TAB

6 7=

[ 2nd ] [ TAB ] 4

0 . 8571

DEG TAB

6 7=

[ 2nd ] [ TAB ] 2

0 . 86

DEG

6 7=

[ 2nd ] [ TAB ] [ • ]

0 . 85714285714

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DEG

6 7=

[ F

↔

E ]

8 . 57142857143

–01

DEG

[ ENG ]

8 5 7 . 142857143

–03

DEG

[ 2nd ] [ ] [ 2nd ] [ ]

0 . 00085714285

03

Engineering Symbol Notation

Each time you specify the ENG mode, a displayed result is

automatically shown with the corresponding engineering symbol.

Y

yotta

= 10

24

,

Z

zetta

= 10

21

,

E

exa

= 10

18

,

P

peta

= 10

15

,

T

tera

= 10

12

,

G

giga

= 10

9

,

M

mega

= 10

6

,

K

kilo

= 10

3

,

m

milli

= 10

– 3

,

μ

micro

= 10

– 6

,

n

nano

= 10

– 9

,

p

pico

= 10

– 12

,

f

femto

= 10

– 15

,

a

atto

= 10

– 18

,

z

zepto

= 10

– 21

,

y

yocto

= 10

– 24

Perform the following operation to specify engineering symbol

notation.

[ MODE ] 5 ( ENG )

To exit from this mode, press [ MODE ] 5 once again.

¾

6 7 = 0.85714285714…

ENG DEG

[ MODE ] 5

0 .

ENG DEG

6 7= m

6 [ ] 7 [=]

8

5 7 . 1428571 43

ENG DEG

μ

[ ENG ]

8 5 7 1 4 2 . 857143

ENG DEG

K

[ 2nd ] [ ] [ 2nd ] [ ] [ 2nd ]

[

]

0 . 00085714285

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Scientific Functional Calculations

Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for scientific function

calculations.

Logarithms and Antilogarithms

The calculator can calculate common and natural logarithms and

anti-logarithms using [ log ], [ ln ], [ 2nd ] [ 10

x

], and [ 2nd ] [ e

x

].

¾

ln 7 + log 100 = 3.94591014906

DEG

l n7+ l og100=

[ ln ] 7 [ + ] [ log ] 100 [=]

3 . 94591014906

¾

10

2

+ e

–5

= 100.006737947

DEG

10 ^ 2+e^ –5=

[ 2nd ] [ 10

X

] 2 [ + ] [ 2nd ] [ e

X

] 5

[ + / – ] [=]

100 . 006737947

Fraction calculation

Fraction value display is as follow :

5

」

12

Display of

12

5

56

∪

5

」

12 Display of 56

12

5

(Note): Values are automatically displayed in decimal format whenever

the total number of digits of a fractional values ( integer +

numerator + denominator + separator marks ) exceeds 12.

To enter a mixed number, enter the integer part, press [ a

b

/

c

], enter

the numerator, press [ a

b

/

c

], and enter the denominator ; To enter an

improper fraction, enter the numerator, press [ a

b

/

c

], and enter the

denominator.

¾

21

8

22

7

5

14

3

2

7 =+

DEG

7 2 3 + 14 5 7

7 [ a

b

/

c

] 2 [ a

b

/

c

] 3 [ + ] 14 [ a

b

/

c

]

5 [ a

b

/

c

] 7 [=]

22

8 21.

During a fraction calculation, if the figure is reducible, a figure is

reduced to the lowest terms after pressing a function command key

( [ + ], [ – ], [ x ] or [ ] ) or the [=] key. By pressing [ 2nd ] [

d

/

e

], the

displayed value will be converted to the improper fraction and vice

versa. To convert between a decimal and fractional result, press

[ a

b

/

c

].

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¾

2

9

5.4

2

1

4

2

4 ===

DEG

4 2 4 =

4 [ a

b

/

c

] 2 [ a

b

/

c

] 4 [=]

4

1 2 .

DEG

4 2 4 =

[ a

b

/

c

]

4 . 5

DEG

4 2 4 =

[ a

b

/

c

] [ 2nd ] [

d

/

e ]

9

2 .

DEG

4 2 4 =

[ 2nd ] [

d

/

e

]

4

1 2 .

Calculations containing both fractions and decimals are calculated in

decimal format.

¾

55.1275.3

5

4

8 =+

DEG

8 4 5 + 3 . 75=

8 [ a

b

/

c

] 4 [ a

b

/

c

] 5 [ + ] 3.75

[=]

12 . 55

Angle unit conversions

The calculator enables you to convert an angle unit among

degrees(DEG), radians(RAD), and grads(GRAD).

The relation among the three angle units is :

180 ° =

π

rad = 200 grad

1) To change the default setting to another setting, first press [ 2nd ]

[ DRG ] key repeatedly until the angle unit you want is indicated in

the display.

2) After entering a value, press [ 2nd ] [ DRG ] repeatedly until the

unit you want is displayed.

¾

90 deg. = 1.57079632679 rad. = 100 grad.

DEG

[ 2nd ] [ DRG ]

0 .

RAD

90

O

=

90 [ 2nd ] [ DRG ]

1 . 57079632679

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GRAD

1 . 5707963267

[ 2nd ] [ DRG ]

100.

Sexagesimal

↔

Decimal transformation

The calculator enables you to convert the sexagesimal figure (degree,

minute and second) to decimal notation by pressing [ ] or

convert the decimal notation to the sexagesimal notation by [ 2nd ]

[ ].

Sexagesimal figure value display is as follow :

125



45

׀

30

׀ ׀

55

Represent 125 degrees (D),

45 minutes(M), 30.55 seconds(S)

(Note) : The total digits of D, M and S and separator marks must be

within 12 digits, or the sexagesimal couldn't be shown

completely.

¾

12.755 = 12



45

l

18

l l

DEG

12.755 [ 2nd ] [ ]

12



45

l

18

l l

¾

2



45

l

10.5

l l

= 2.75291666667

DEG

2

[

] 45

[

] 10.5

[

]

2 . 75291666667

Trigonometric / Inverse-Tri. functions

SR-281N

provides standard trigonometric functions and inverse

trigonometric functions - sin, cos, tan, sin

–1

, cos

–1

and tan

–1

.

(Note) : When using those keys, make sure the calculator is set for the

angle unit you want.

¾

sin 30 deg.= 0.5

DEG

sin30=

[ sin ] 30 [=]

0 . 5

¾

3 cos (

π

3

2

rad) = – 1.5

RAD

3 ¼ cos(2

¼

π 3=

3 [ cos ] [ ( ] 2 [ x ] [ 2nd ] [

π

] [ ]

3 [=]

–1 . 5

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¾

3 sin

–1

0.5 = 90 deg

DEG

3 ¼ sin

–1

0 . 5=

3 [ 2nd ] [ sin

–1

] 0.5 [=]

9 0 .

Hyperbolic / Inverse-Hyp. functions

SR-281N

uses [ 2nd ] [ HYP ] to calculate the hyperbolic functions and

inverse-hyperbolic functions - sinh, cosh, tanh, sinh

–1

, cosh

–1

and

tanh

–1

.

(Note) : When using those keys, make sure the calculator is set for the

angle unit you want.

¾

cosh 1.5 + 2 = 4.35240961524

DEG

cosh1. 5+2=

[ 2nd ] [ HYP ] [ cos ] 1.5 [ + ] 2 [=]

4 . 35240961524

¾

sinh

–1

7 = 2.64412076106

DEG

sinh1

–1

7=

[ 2nd ] [ HYP ] [ 2nd ] [ sin

–1

] 7 [=]

2 . 64412076106

Coordinates transformation

Rectangular Coordinates Polar Coordinates

x + y i = r (cos

θ

+ i sin

θ

)

(Note) : When using those key, make sure the calculator is set for the

angle unit you want.

The calculator can perform the conversion between rectangular

coordinates and polar coordinates by [ 2nd ] [ P R ] and [ 2nd ]

[ R P ].

¾

If x = 5, y = 30, what are r,

θ

? Ans : r = 30.4138126515,

θ

= 80.537677792

o

DEG

(

)

R P(5 ,

[ 2nd ]

[ R P ] 5 [ 2

nd ] [ ] 30

30

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DEG

r

[=]

3 0 . 4138126515

DEG

θ

[ 2nd ] [ X

↔

Y ]

8 0

.

537677792

¾

If r = 25,

θ

= 56

o

what are x, y ? Ans : x = 13.9798225868,

y = 20.7259393139

DEG

(

)

P R( 25 ,

[ 2nd ] [ P R ] 25 [ 2nd ] [ ] 56

56

DEG

X

[=]

1 3 . 9798225868

DEG

Y

[ 2nd ] [ X

↔

Y ]

2 0

.

7

259393139

Probability

This calculator provides the following probability functions :

[ nPr ] Calculates the number of possible permutations of n item

taken r at a time.

[ nCr ] Calculates the number of possible combinations of n items

taken r at a time.

[ x ! ] Calculates the factorial of a specified positive integer n,

where n

≦

69.

[ RND ] Generates a random number between 0.000 and 0.999

¾

840

! ] ) 47 ( [

! 7

=

−

DEG

7P4=

7 [ 2nd ] [ nPr ] 4 [=]

840.

¾

53

! ] ) 47 ( [ ! 4

! 7

=

−

DEG

7C4=

7 [ 2nd ] [ nCr ] 4 [=]

35.

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¾

5 ! = 120

DEG

5!=

5 [ 2nd ] [ x ! ] [=]

120.

¾

Generates a random between 0.000 ~ 0.999

DEG

Rnd

[ 2nd ] [ RND ]

0 . 449

Other functions ( 1/x, ,

3

,

X

, x

2

, x

3

, x

y

, INT,

FRAC )

The calculator also provides reciprocal ( [ 2nd ] [ 1/x ] ), square root

( [

√

] ), cubic root ( [ 2nd ] [

3

] ), universal root ( [ 2nd ] [

X

] ),

square ( [ x

2

] ), cubic ( [ 2nd ] [ x

3

] ), and exponentiation ( [ x

y

] )

functions.

¾

8.0

.251

1

=

DEG

1 . 25

–1

=

1.25 [ 2nd ] [ 1 / x ] [=]

0 . 8

¾

139= 5 + 125+21+4+ 2

3

2

DEG

2

+ √ (4+21)+

2 [ x

2

] [ + ] [ √ ] [ ( ] 4 [ + ] 21 [ ) ]

[ + ] [ 2nd ] [

3

] 125 [ + ] 5 [ 2nd ]

[ x

3

] [=]

13

9 .

¾

16812=625+7

4

5

DEG

7x

y

5+4

X

√

625=

7 [ x

y

] 5 [ + ] 4 [ 2nd ] [

X

] 625 [=]

1681

2 .

INT Indicate the integer part of a given number

FRAC Indicate the fractional part of a given number

¾

INT ( 10 8 ) = INT ( 1.25 ) = 1

DEG

INT(10 8=

[ 2nd ] [ INT ] 10 [ ] 8 [=]

1.

¾

FRAC ( 10 8 ) = FRAC ( 1.25 ) = 0.25

DEG

FRAC( 10 8=

[ 2nd ] [ FRAC ] 10 [ ] 8 [=]

0 . 25

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Unit Conversion

The calculator has a built-in unit conversion feature that enables you to

convert numbers among different units.

1. Enter the number you want to convert.

2. Press [ CONV ] to display the menu. There are 7 menus, covering

distance, area, temperature, capacity, weight, energy, and

pressure.

3. Use the [ CONV ] to scroll through the list of units until a

appropriate units menu is shown, then [=].

4. Pressing [

] or [ 2nd ] [ ] can convert the number to

another unit.

¾

1 y d

2

= 9 f t

2

= 0.00000083612 km

2

DEG

ft

2

yd

2

m

2

1 [ CONV ] [ CONV ] [ ] [=]

1.

DEG

ft

2

yd

2

m

2

[ 2nd ] [ ]

9 .

DEG

km

2

hec t a r es

[ ] [ ] [ ]

0 . 0 00 00083612

Physics constants

You can use 136 physics constants in your calculations. With the

following constants :

Data is referred to Peter J.Mohr and Barry N.Taylor, CODATA

Recommended Values of the Fundamental Physical Constants:1998,

Journal of Physical and Chemical Reference Data,Vol.28, No.6,1999

and Reviews of Modern Physics,Vol.72, No.2, 2000.

No. Quantity Symbol Value, Unit

1. Speed of light in vacuum c 299792458 m s

–1

2. Magnetic constant

μ

0

1.2566370614 x10

–6

N A

–2

3. Electric constant

ε

0

8.854187817 x 10

–12

F m

–1

4.

Characteristic impedance

of vacuum

Z

0

376.730313461 Ω

5.

Newtonian constant of

gravitation

G 6.67310 x10

–11

m

3

kg

–1

s

–2

6. Planck constant

h

6.6260687652 x10

–34

J s

7. Planck constant over 2 pi

h

1.05457159682 x10

–34

J s

8. Avogadro constant

N

A

6.0221419947 x10

23

mol

–1

9. Planck length

l

p

1.616012 x10

–35

m

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