CITIZEN SR-281N User Manual

Page 2

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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

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