Citizen SR-135T Bedienungsanleitung

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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

REPLACING THE BATTERIES........................................17

SR-135T

Scientific Calculator

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FEATURES

(1) Normal operations.

Four operation (+, −, x, ÷), xy,yx, auto-constant, parenthesis,

percentage.

(2) Memory calculation (XÆM, 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).

• Total of square of all data (Σx2).

• Average (

• 2 kinds of the standard deviation (σn–1,σn).

• Total of all data (Σx).

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

THE KEYBOARD AND OPERATING

CONTROLS

(1)

[]

ON/C

: 1. Power on and clear an error condition.

2. Set and clear the statistics mode.

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(2)

[]

: 1. Clear entry key.

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)

[]

DRG

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

sequentially

ÆÆÆ

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 ÆRAD : RAD = DEG x π/180

RAD ÆGRAD : GRAD = RAD x 200/π

GRAD ÆDEG : DEG = GRAD x 180/200

(6) [0] ~ [9] : Press these keys in their logical sequence to enter

numbers.

(7)

[ ]

RND

: 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)

3) xy,yx

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], [÷],

[xy], [ yx], [=], [ ( ] 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) [XÆM], [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 [XÆM] 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)

[]

EXP

: 1. Exponent select key.

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

EXAMPLE KEY OPERATION LCD DISPLAY

WHAT IS 30% OF

450?

450 [x] 30 [SHIFT] [%]

[=]

0.3

135.

WHAT

PERCENTAGE OF

600 IS 120?

(120÷600x100=20)

120 [÷] 600 [SHIFT] [%]

[=]

20.

WHAT 25% OF 400

IS AN EXTRA?

(400+(400x25/100)

=500)

400 [+] 25 [SHIFT] [%]

[=]

100.

500.

WHAT 25% 0F 400

IS A DISCOUNT?

(400−(400x25/100)

=300)

400 [−] 25 [SHIFT] [%]

[=]

100.

300.

(13) Trigonometric and arctrigonometric function / Hyperbolic and arc

hyperbolic trigonometric function (1-variable)

([sin], [cos], [tan], [sin−1], [cos−1], [tan−1]).

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).

([In], [Log], [eX], [10X]) Same as Trigonometric functions.

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

([1/x] , [x2], [ ] , [ 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

(39.99seconds)

(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

operation range ___ 512 ≤DATA

Binary

Positive

Integer

111111111

111111110

111111101

511

510

509

Binary

Negative

Integer

(Complement)

111111111

111111110

111111101

: :

1000000001

1000000000

−1

−2

−3

−511

−512

Outside the operation

range DATA ≤ −512

(18) Octal mode ( [SHIFT],

[ ]

OCT

, [0] ~ [7] ).

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

operation range ___ 536870912

≤ DATA

Octal

Positive

Integer

3777777777

3777777776

536870911

536870910

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Octal

Negative

Integer

(Complement)

777777777

777777776

111111101

: :

4000000001

4000000000

−1

−2

−536870911

−536870912

Outside the operation

range

DATA

≤ −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

operation range ___ 1x1010 ≤ DATA

Hexadecimal

Positive

Integer

2 5 4 0 B E 3 F F

2 5 4 0 B E 3 F E

9999999999

9999999998

Hexadecimal

Negative

Integer

(Complement)

F F F F F F F F F F

F F F F F F F F F E

F D A B F 4 1 C 0 2

F D A B F 4 1 C 0 1

−1

−2

−9999999998

−9999999999

Outside the operation

range DATA ≤ −1x1010

(20)

[]

SCI

FIX

1. Used to switch between display mode.

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

[SHIFT]

[]

SCI

FIX

[5] 0.66667

[]

SCI

FIX

6.66667-01

[SHIFT]

[]

SCI

FIX

[ • ] 6.6666666-01

(21) [X↔Y] : Exchange key.

Used to exchange the displayed number with the

contents of an internal register.

(22) [a], [b], [RÆP], [PÆR] : 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

obtained by RÆP 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

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

by pressing [b] key.

Input Data Result

a b a b

RÆP

(RectangularÆPolar) x y r θ

PÆR

(PolarÆRectangular) rθx y

(Ær, θ) r = 22 yx +,θ= tan−1y/x

(Æx, y) x = r cos θ, y = r sinθ

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e. (RÆP Conversion)

([x, y]Æ[r, θ])

f. (PÆR Conversion)

([r, θ]Æ[x, y])

Key operation Display Key operation Display

x x θθ

a x b θ

y y r r

b y a r

RÆP r PÆR x

bθb y

(23) Statistical calculation mode ([SHIFT]

[]

ON/C

a. When you calculate the calculation of statistics, pressing

[SHIFT]

[]

ON/C

keys for statistics mode ("SD" sign ). When

you clear to statistics mode, press the same keys ([SHIFT]

[]

ON/C

b. You can't perform the memory calculation, parenthesis

calculation or conversion of coordinates.

c. [DATA] : Data entry key. [DEL] : Data clear key.

d. you can calculate the following statistical volume in this

calculator.

1. n : Number of data (Number of sample).

Σx : Total of datum.

Σx2: Total of square of each data.

: Average of datum.

σn–1: The sample standard deviation of the data.

σn: The population standard deviation of the data.

xΣ

)(

−

−Σ

−

=−

xXi

2)(

)( Σ

−Σ

−

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(24)

CPLX

: Digit erase / Complex number mode key. When

exponential portion is not specified:

[ Ź] : Upon pressing this key immediately after the

value is entered, displayed value is shifted to

the right and the last digit is erased.

Example: Entry Display

123456 Î 123456.

[ Ź]Î12345.

[ Ź] [ Ź]Î123.

456Î123456.

When exponential portion is entered: Numberals in

exponential ponential portion are shifted right and last digit

is erased. At this point, 0 replaces the first digit in the

exponential.

Example: Entry Display

5 [EXP] 24 Î5. 24

[ Ź] Î5. 02

[ Ź] Î5. 00

42 Î5. 42

[SHIFT] [CPLX] : Setting and clearing of complex number

mode are executed alternately.

(25) ][ y

x: Power / Root key

[Xy] : Press any number [X], [Xy], any number [y], and [=] to raise

y to the x power.

[SHIFT] [ yx] : Press any number [x] [SHIFT] [ yx], any

number [y], and [=] to display the y root x.

DISPLAY

• Display style

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