Citizen SR-135FRD: инструкция

Contents

FEATURES ......................................................................... 2

THE KEYBOARD AND OPERATING CONTROLS ........... 2

DISPLAY........................................................................... 10

CALCULATION................................................................. 11

1. Calculation order of priority................................................ 11

2. Addition, subtraction, multiplication and division and

constant calculations. ........................................................ 12

3. Memory calculation............................................................ 13

4. Calculations with parenthesis............................................ 14

5. Coordinate conversion:...................................................... 14

6. Complex Calculation.......................................................... 15

7. Statistical calculation. ........................................................ 16

SPECIFICATIONS ............................................................ 17

AUTOMATIC POWER OFF .............................................. 17

BATTERY REPLACEMENT ............................................. 17

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FEATURES

(1) Normal operations.

y

y

Four operation (+, –, x,

÷

), x

,

x

, auto-constant, parenthesis,

percentage.

(2) Memory calculation (X

→

M, MR, M+).

(3) General mathematical function:

Trigonometric (3) Arctrigonometric (3)

Logarithmic (2) Exponential (2)

Square Power

Square Root Cube Root

Root

π

Parenthesis Reciprocal

EXP +/–

SCI Factorial

DEG, RAD, GRAD Degree, minute, second conversion (2)

FIX X

↔

Y

RND Coordinate conversion.

(4) Binary, octal, decimal and hexadecimal mode.

Mutual conversions and calculations of binary, octal, decimal, and

hexadecimal numbers.

(5) Memory protection when power off.

(6) An automatic power off feature to preserve battery life.

(7) Statistics calculations.

• Number of sample (n).

2

• Total of square of all data (

Σ

x

).

• Average (

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).

• 2 kinds of the standard deviation (

σ

n–1,

σ

n).

• Total of all data (

Σ

x).

(8) 2-variable function polar-rectangular coordinate conversion.

THE KEYBOARD AND OPERATING

CONTROLS

SD

(1)

: 1. Power on and clear an error condition.

[]

ON/C

2. Set and clear the statistics mode.

x!

(2)

: 1. Clear entry key.

[]

CE

2. Factorial function (x!).

x! = n x (n–1) x (n–2) x (n–3) x .....x 2 x 1

(3)

[OFF]

: Power off key.

(4)

[SHIFT]

: This is the key for specifying the second function. When

this key is pressed, the special display “SHIFT” lights.

When this key press twice continuously, the second

function mode releas.

(5)

: a. Pressing this key will change the mode of angle unit

[]

DRG

sequentially



DEG RAD GRAD

and display

it on LCD.

b. Pressing this key after [SHIFT] key shall change the

mode of angle and shall convert the displayed data.

DEG

→

RAD : RAD = DEG x

π

/180

RAD

→

GRAD : GRAD = RAD x 200/

π

GRAD

→

DEG : DEG = GRAD x 180/200

(6)

[0] ~ [9]

: Press these keys in their logical sequence to enter

numbers.

RND

(7)

: a. Use to set the decimal point when entering numbers.

[ ]



b. When press as the first number, it is regarded as [0]

and [ • ] keys are pressed.

c. Random as a second function.

Pressing this key shall display the random number.

The range of random number is 0.000~0.999.

(8)

[+/–]

: a. In setting data in the mantissa section, this key reverse

code in the mantissa section similarly for exponent

section, it reverse code in the exponent section.

b. For the operation result, this key reverse code in the

mantissa section.

(9)

[+], [–], [x], [

÷

], [ ( ], [ ) ]

a. When the key operations are performed by these keys

according to a numerical expression, a result of operation is

obtained according to mathematical priorities. Priorities

discriminated are:

1) 1-variable function.

2) Expression in "( )"; (The most inner expression has priority

in case of multiple parenthesis)

y

y

3) x

,

x

4) x,

÷

5) +, –

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b. Whenever the key is operated, the calculator discriminates the

above priorities and holds the data and operation keys pending

as required.

This pending action is possible up to 6 times, and 15 levels or

more pending become error.

c. [ ( ] key is accepted only immediately after [CE], [+], [–], [x], [

÷

],

y

y

[x

], [

x

], [=], [ ( ] keys can not accepted in all other cases.

When this key is accepted, the displayed data is cleared to 0.

When [ ( ] key is first accepted, the special display “( )”

illuminates.

When a parenthesis expression is completed [ ) ] and [=] key or

when it is cleared by the [ON/C] key, etc. or when errors are

generated, the special display “( )” goes out.

d. If it is within the allowable range of pending, [ ( ] can be input

into any place in an expression as many times as desired.

However, if the key is pressed continuously 16 times or more, it

becomes error.

e. From a viewpoint of numerical expression when the

corresponding “ ) ” key is not pressed, the operation is not

executed even if the “ ( ” key is pressed. On the other hand,

When the “ ( ” key is pressed and the “ = ” key is the pressed

without pressing the corresponding “ ) ” key, the operation is

also completed according to the priority.

(10) [X

→

M], [MR], [M+] Memory calculation

a. The memory register “M” used by these keys is a completely

independent single memory.

b. Display data is added to “M” (memory register) by [M+] key. If

data overflows at this time, the proceeding data is hold.

c. Display data is stored in “M” by [X

→

M] key.

d. Contents of “M” is displayed by [MR] key.

e. When any data except for 0 is stored in “M”, the special display

“M” illuminates.

(11)

: 1. Exponent select key.

[]

EXP

2. This key display a rounded value : 3.141592654.

%

(12)

: Calculation

[]

=

a. When any arithmetic functions constant mode has been set, the

displayed number is converted from a percentage to a decimal.

Example: 61.5%

Key Input Display

[6] [1] [ • ] [5] [SHIFT] [%] 0.615

b. When [=] key is pressed after [%] following arithmetic function

will be executed.

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CALCULATION

KEY OPERATION LCD DISPLAY

EXAMPLE

WHAT IS 30% OF

450 [x] 30 [SHIFT] [%]

0.3

450?

[=]

135.

WHAT

PERCENTAGE OF

120 [

÷

] 600 [SHIFT] [%]

6.

600 IS 120?

[=]

20.

(120

÷

600x100=20)

WHAT 25% OF 400

IS AN EXTRA?

400 [+] 25 [SHIFT] [%]

100.

(400+(400x25/100)

[=]

500.

=500)

WHAT 25% 0F 400

IS A DISCOUNT?

400 [–] 25 [SHIFT] [%]

100.

(400–(400x25/100)

[=]

300.

=300)

(13) Trigonometric and arctrigonometric function / Hyperbolic and arc

hyperbolic trigonometric function (1-variable)

–

1

–

1

–

1

([sin], [cos], [tan], [sin

], [cos

], [tan

]).

These function are calculated according to respective defined

areas and accuracy shown in behind chart, any displayed result

of operation can become operators.

(14) Exponential and Logarithmic functions (1-variable).

X

X

([In], [log], [e

], [10

]) Same as Trigonometric functions.

(15) Reciprocal, Square, Square Root, and Cube Root.

2

([1/x] , [x

], [ ] , [

3

]) Same as Trigonometric functions.

(16)

[ ]

a. These keys convert degrees, minutes, seconds, into

decimal degree and decimal degrees into degree

minutes, and seconds.

b. On the “ ” format, the integer part of display data is

regarded as degree, 2 digits below the decimal point

as minutes and the 3rd digit and belows as seconds.

Example:

[ ] <degree minute second>

2.111111111 [SHIFT] [ ] 2 06 3999

(39.99 seconds)

BIN

(17) Binary mode ([SHIFT],

[ ]

, [0], [1] ).

a. Data input and output are both binary integers in a maximum of

10 digits.

b. A negative number is expressed in binary of two's complement.

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c. The range of internal operation is as shown below and if the

result of the operation exceed the range, it becomes an error

(overflow).

Binary Number

Decimal Number

Outside the

___

512 ≤ DATA

operation range

111111111

511

111111110

510

111111101

509

Binary

:

:

Positive

:

:

Integer

10

2

1

1

0

0

111111111

–1

111111110

–2

Binary

111111101

–3

Negative

: :

:

Integer

: :

:

(Complement)

1000000001

–511

1000000000

–512

Outside the operation

DATA ≤ –512

range

OCT

(18) Octal mode ( [SHIFT],

, [0] ~ [7] ).

[ ]

x

a. Data input and output are both octal integers with a maximum

of 10 digits.

b. A negative number is expressed in the octal number display of

two’s complement.

c. The range of internal operation is as shown below and if the

result of the operation exceed the range, it becomes an error

(overflow).

Octal Number

Decimal Number

Outside the

536870912

___

operation range

≤ DATA

3777777777

536870911

3777777776

536870910

Octal

:

:

Positive

:

:

Integer

1

1

0

0

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777777777

–1

777777776

–2

Octal

111111101

Negative

: :

:

Integer

: :

:

(Complement)

4000000001

–536870911

4000000000

–536870912

Outside the operation

DATA

range

≤ –536870913

(19) Hexadecimal Mode ([SHIFT], [HEX], [0] ~ [9], [A] ~ [F]).

a. Data input and output are both hexadecimal integer with a

maximum of 10 digits.

b. A negative number is expressed in a hexadecimal number of

two's complement.

c. The range of internal operation is as shown below and if the

result of operation exceed the range, it becomes an error

(overflow).

Hexadecimal Number

Decimal Number

Outside the

10

___

1x10

≤ DATA

operation range

2 5 4 0 B E 3 F F

9999999999

2 5 4 0 B E 3 F E

9999999998

Hexadecimal

:

:

Positive

:

:

Integer

1

1

0

0

F F F F F F F F F F

–1

Hexadecimal

F F F F F F F F F E

–2

Negative

:

:

Integer

:

:

(Complement)

F D A B F 4 1 C 0 2

–9999999998

F D A B F 4 1 C 0 1

–9999999999

Outside the operation

10

DATA ≤ –1x10

range

FIX

(20)

1. Used to switch between display mode.

[]

SCI

2. Used to set the number of digits display after the

decimal point. Example:

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Key input display

[2] [

÷

] [3] [=] 0.666666666

FIX

[SHIFT]

[5] 0.66667

[]

SCI

FIX

6.66667-01

[]

SCI

FIX

[SHIFT]

[ • ] 6.6666666-01

[]

SCI

(21) [X

↔

Y] : Exchange key.

Used to exchange the displayed number with the contents of an

internal register.

(22) [a], [b], [R

→

P], [P

→

R] : Coordinate conversion.

a. These keys convert the rectangular coordinate into the polar

coordinate and the polar coordinate into the rectangular

coordinate. The range units that have been set by the [DRG]

key follow.

b. Respective defined areas and accuracy are as shown in

behind chart however, the range of

θ

obtained by R

→

P in

degree is as follows:

1st Quadrant 0°≤

θ

≤ 90°

2nd Quadrant 90°≤

θ

≤ 180°

3rd Quadrant –180°≤

θ

≤–90°

4th Quadrant –90°≤

θ

≤ 0°

c. Input of 2 variable is performed by setting x or r pressing [a]

key and y or

θ

pressing [b] key.

d. The operation result of x or r is obtained in the display register

or by pressing [a] key and y or

θ

by pressing [b] key.

Input Data Result

a b a b

R

→

P

x y r

θ

(Rectangular

→

Polar)

P

→

R

r

θ

x y

(Polar

→

Rectangular)

22

–1

(

→

r,θ) r =

yx + ,θ= tan

y/x

(

→

x, y) x = r cos

θ

, y = r sin

θ

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