Sharp EL-509W Operation Manual

Scientific calculator

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ENGLISH

SCIENTIFIC CALCULATOR

EL-509W

EL-531W

EL-531WG

EL-531WH

MODEL

OPERATION MANUAL

PRINTED IN CHINA / IMPRIMÉ EN CHINE / IMPRESO EN CHINA

10EGK (TINSE1377EH01)

INTRODUCTION

Thank you for purchasing the SHARP Scientiﬁ c Calculator Model

EL-509W/531W/531WG/531WH.

About the calculation examples (including some formulas and

tables), refer to the reverse side of this English manual. Refer to

the number on the right of each title on the manual for use.

After reading this manual, store it in a convenient location for

future reference.

Note: Some of the models described in this manual may not be

available in some countries.

Operational Notes

• Do not carry the calculator around in your back pocket, as it

may break when you sit down. The display is made of glass

and is particularly fragile.

• Keep the calculator away from extreme heat such as on a car

dashboard or near a heater, and avoid exposing it to exces-

sively humid or dusty environments.

• Since this product is not waterproof, do not use it or store it

where ﬂ uids, for example water, can splash onto it. Raindrops,

water spray, juice, coffee, steam, perspiration, etc. will also

cause malfunction.

• Clean with a soft, dry cloth. Do not use solvents or a wet cloth.

• Do not drop it or apply excessive force.

• Never dispose of batteries in a ﬁ re.

• Keep batteries out of the reach of children.

• This product, including accessories, may change due to up-

grading without prior notice.

NOTICE

• SHARP strongly recommends that separate permanent

written records be kept of all important data. Data may be

lost or altered in virtually any electronic memory product

under certain circumstances. Therefore, SHARP assumes

no responsibility for data lost or otherwise rendered unusable

whether as a result of improper use, repairs, defects, battery

replacement, use after the speciﬁ ed battery life has expired,

or any other cause.

• SHARP will not be liable nor responsible for any incidental

or consequential economic or property damage caused

by misuse and/or malfunctions of this product and its

peripherals, unless such liability is acknowledged by law.

♦ Press the RESET switch (on the back), with the tip of a ball-

point pen or similar object, only in the following cases. Do not

use an object with a breakable or sharp tip. Note that pressing

the RESET switch erases all data stored in memory.

• When using for the ﬁ rst time

• After replacing the batteries

• To clear all memory contents

• When an abnormal condition occurs and all keys are inop-

erative.

If service should be required on this calculator, use only a

SHARP servicing dealer, SHARP approved service facility, or

SHARP repair service where available.

Hard Case

DISPLAY

←Symbol

Equation→

Display

Exponent

Mantissa

• During actual use, not all symbols are displayed at the same

time.

• Certain inactive symbols may appear visible when viewed

from a far off angle.

• Only the symbols required for the usage under instruction are

shown in the display and calculation examples of this manual.

• The previous calculation result will not be recalled after enter-

ing multiple instructions.

• In the case of utilizing postﬁ x functions (¿ , sin, etc.), you can

perform a chain calculation even when the previous calculation

result is cleared by the use of the ª key.

Fraction Calculations

This calculator performs arithmetic operations and memory

calculations using fractions, and conversion between a decimal

number and a fraction.

• If the number of digits to be displayed is greater than 10, the

number is converted to and displayed as a decimal number.

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 ad-

dition, the calculator can carry out the logical operations AND,

OR, NOT, NEG, XOR and XNOR on binary, pental, octal and

hexadecimal numbers.

Conversion to each system is performed by the following keys:

@ê: Converts to the binary system. " " appears.

@û: Converts to the pental system. " " appears.

@î: Converts to the octal system. " " appears.

@ì: Converts to the hexadecimal system. " " appears.

@í: Converts to the decimal system. " ", " ", " ", and

" " disappear from the display.

Conversion is performed on the displayed value when these keys

are pressed.

Note: In this calculator, the hexadecimal numbers A – F are

entered by pressing ™

, ⁄

, L

, ÷

, l

, and displayed as follows:

A → ï, B → ∫, C → ó, D → ò, E → ô, F → ö

In the binary, pental, octal, and hexadecimal systems, fractional

parts cannot be entered. When a decimal number having a frac-

tional part is converted into a binary, pental, octal, or hexadeci-

mal number, the fractional part will be truncated. Likewise, when

the result of a binary, pental, octal, or hexadecimal calculation

includes a fractional part, the fractional part will be truncated.

In the binary, pental, octal, and hexadecimal systems, negative

numbers are displayed as a complement.

Time, Decimal and Sexagesimal Calculations

Conversion between decimal and sexagesimal numbers can be

performed. In addition, the four basic arithmetic operations and

memory calculations can be carried out using the sexagesimal

system.

Notation for sexagesimal is as follows:

degree

second

minute

Coordinate Conversions

• Before performing a calculation, select the angular unit.

P (r, θ )

P (x,y )

↔

Rectangular coord.

Polar coord.

• The calculation result is automatically stored in memories X

and Y.

Value of r or x: X memory

Value of θ or y: Y memory

Modify Function

In this calculator, calculation results are internally obtained in

scientiﬁ c notation with up to 14 digits for the mantissa. However,

since calculation results are displayed in the form designated by

the display notation and the number of decimal places indicated,

the internal calculation result may differ from that shown in the

display. By using the modify function, the internal value is con-

verted to match that of the display, so that the displayed value

can be used without change in subsequent operations.

STATISTICAL CALCULATIONS

Statistical calculations are performed in the statistics mode.

Press m1 to select the statistics mode. This calculator

performs the seven statistical calculations indicated below. After

selecting the statistics mode, select the desired sub-mode by

pressing the number key corresponding to your choice.

When changing to the statistical sub-mode, press the corre-

sponding number key after performing the operation to select the

statistics mode (press m1).

: Appears when the entire equation cannot be displayed.

Press </> to see the remaining (hidden) section.

: Indicates that data can be visible above/below the screen.

These indications may appear when menu, multi-line play-

back, and statistics data are displayed. Press [/]

to scroll up/down the view.

: Appears when @ is pressed, indicating that the func-

2ndF

tions shown in orange are enabled.

: Indicates that h has been pressed and the hyperbolic

HYP

functions are enabled. If @H are pressed, the

symbols "2ndF HYP" appear, indicating that inverse hy-

perbolic functions are enabled.

ALPHA : Indicates that K (STAT VAR), O or R has been

pressed, and entry (recall) of memory contents and recall

of statistics can be performed.

FIX/SCI/ENG: Indicates the notation used to display a value and

changes by SET UP menu.

DEG/RAD/GRAD: Indicates angular units and changes each time

G is pressed.

: Appears when statistics mode is selected.

STAT

: Indicates that a numerical value is stored in the independ-

ent memory.

BEFORE USING THE CALCULATOR

Key Notation Used in this Manual

In this manual, key operations are described as follows:

To specify e

To specify ln :

Kü

To specify F :

Functions that are printed in orange above the key require @

to be pressed ﬁ rst before the key. When you specify the memory,

press K ﬁ rst. Numbers for input value are not shown as keys,

but as ordinary numbers.

Power On and Off

Press ª to turn the calculator on, and @F to turn it off.

Clearing the Entry and Memories

Clearing methods are described in the table as follows:

M *

A-F, X,Y *

Clearing

Entry

operation

(Display)

@∏00 *

@∏10 *

RESET switch

× : Retain

: Clear

Independent memory M.

Temporary memory A-F, X and Y.

Last answer memory.

Statistical data (entered data).

¯ x , sx, σ x, n, Σx, Σx

, ¯ y , sy, σ y, Σy, Σy

, Σxy, r, a, b, c.

All variables are cleared. See 'About the Memory clear key' for

details.

This key combination functions the same as the RESET switch.

See 'About the Memory clear key' for details.

[About the Memory clear key]

Press @∏ to display the menu.

• To clear all variables (M, A-F, X, Y, ANS, STAT VAR), press

00 or 0®.

• To RESET the calculator, press 10 or 1®.

The RESET operation will erase all data stored in memory, and

restore the calculator's default setting.

Entering and Correcting the Equation

[Cursor keys]

• Press < or > to move the cursor. You can also return to

the equation after getting an answer by pressing > (<).

See the next section for using the [ and ] keys.

• In the SET UP menu and other locations, use the < or >

key to move the ﬂ ashing cursor, then press ® (= key).

If you need to scroll up/down the view, use the [ or ] key.

[Insert mode and Overwrite mode in the Equation display]

• This calculator has two editing modes: insert mode (default),

and overwrite mode. Pressing @' switches between the

two modes. A triangular cursor indicates that an entry will be

inserted at the cursor, while the rectangular cursor indicates to

overwrite preexisting data as you make entries.

• To insert a number in the insert mode, move the cursor to the

place immediately after where you wish to insert, then make a

desired entry. In the overwrite mode, data under the cursor will

be overwritten by the number you enter.

• This mode setting will be retained until the next RESET operation

is executed.

0 (SD)

: Single-variable statistics

1 (LINE)

: Linear regression calculation

2 (QUAD) : Quadratic regression calculation

3 (EXP)

: Exponential regression calculation

4 (LOG)

: Logarithmic regression calculation

5 (PWR)

: Power regression calculation

6 (INV)

: Inverse regression calculation

The following statistics can be obtained for each statistical calcula-

tion (refer to the table below):

Single-variable statistical calculation

Statistics of Q

Linear regression calculation

Statistics of Q and W and, in addition, estimate of y for a given

x (estimate y´) and estimate of x for a given y (estimate x´)

Exponential regression, Logarithmic regression,

Power regression, and Inverse regression calculation

Statistics of Q and W. In addition, estimate of y for a given x

and estimate of x for a given y. (Since the calculator converts

each formula into a linear regression formula before actual cal-

culation takes place, it obtains all statistics, except coefﬁ cients a

and b, from converted data rather than entered data.)

Quadratic regression calculation

Statistics of Q and W and coefﬁ cients a, b, c in the quadratic

regression formula (y = a + bx + cx

). (For quadratic regression

calculations, no correlation coefﬁ cient (r) can be obtained.)

When there are two x´ values, press @≠.

When performing calculations using a, b and c, only one numeric

value can be held.

¯ x

Mean of samples (x data)

Sample standard deviation (x data)

, and

σ x

Population standard deviation (x data)

Number of samples

Σ x

Sum of samples (x data)

Σ x

Sum of squares of samples (x data)

¯ y

Mean of samples (y data)

Sample standard deviation (y data)

σ y

Population standard deviation (y data)

Σy

Sum of samples (y data)

Σy

Sum of squares of samples (y data)

Σxy

Sum of products of samples (x, y)

Correlation coefﬁ cient

Coefﬁ cient of regression equation

Coefﬁ cient of quadratic regression equation

• Use K and R to perform a STAT variable calculation.

Data Entry and Correction

Entered data are kept in memory until @c are pressed or

mode selection. Before entering new data, clear the memory con-

tents.

[Data Entry]

Single-variable data

Data k

Data & frequency k (To enter multiples of the same

data)

Two-variable data

Data x & Data y k

Data x & Data y & frequency k (To enter multiples

of the same data x and y.)

• Up to 100 data items can be entered. With the single-variable

data, a data item without frequency assignment is counted as

one data item, while an item assigned with frequency is stored

as a set of two data items. With the two-variable data, a set of

data items without frequency assignment is counted as two data

items, while a set of items assigned with frequency is stored as

a set of three data items.

[Data Correction]

Correction prior to pressing k immediately after a data entry:

Delete incorrect data with ª, then enter the correct data.

Correction after pressing k:

Use [] to display the data previously entered.

Press ] to display data items in ascending (oldest ﬁ rst)

order. To reverse the display order to descending (latest ﬁ rst),

press the [ key.

Each item is displayed with 'Xn=', 'Yn=', or 'Nn=' (n is the se-

quential number of the data set).

Display the data item to modify, input the correct value, then

press k. Using &, you can correct the values of the

data set all at once.

• When

appears, more data items can be browsed by

pressing [ or ].

• To delete a data set, display an item of the data set to delete,

then press @J. The data set will be deleted.

• To add a new data set, press ª and input the values, then

press k.

[Deletion key]

• To delete a number/function, move the cursor to the number/func-

tion you wish to delete, then press d. If the cursor is located at

the right end of an equation, the d key will function as a back

space key.

Multi-line Playback function

This calculator is equipped with a function to recall previous equa-

tions in the normal mode. Equations also include calculation ending

instructions such as "=" and a maximum of 142 characters can be

stored in memory. When the memory is full, stored equations are

deleted in the order of the oldest ﬁ rst. Pressing [ will display

the previous equation and the answer. Further pressing [ will

display preceding equations (after returning to the previous equa-

tion, press ] to view equations in order). In addition, @[

can be used to jump to the oldest equation.

• To edit an equation after recalling it, press > (<).

• To edit the displayed equation, press > (<) immediately

after obtaining a calculation answer.

• The multi-line memory is cleared by the following operations:

@c, @F (including the Automatic Power Off fea-

ture), mode change, memory clear (@∏), RESET, @

`, K (R) ?, constant calculation, chain calcula-

tion, angle unit conversion, coordinate conversion, N-base con-

version, numerical value storage to the temporary memories and

independent memory, and input/deletion of statistical data.

Priority Levels in Calculation

This calculator performs operations according to the following priority:

Q Fractions (1

4, etc.) W Functions preceded by their argument

¿ R Implied multiplication of a memory

-1

, n!, etc.) E Y

, x

value (2Y, etc.) V Functions followed by their argument (sin, cos,

etc.) Y Implied multiplication of a function (2sin30, etc.) U

I ×, ÷ O +, – P AND { OR, XOR, XNOR } =, M+, M–, ⇒M,

| DEG, | RAD, | GRAD, DATA, CD, →rθ, →xy and other calcula-

tion ending instructions

• If parentheses are used, parenthesized calculations have prec-

edence over any other calculations.

INITIAL SET UP

Mode Selection

Normal mode (NORMAL): m0

Used to perform arithmetic operations and function calculations.

Statistics mode (STAT): m1

STAT *

ANS *

STAT VAR *

Used to perform statistical calculations.

When executing mode selection, temporary memories, statistical

variables, statistical data and last answer memory will be cleared

even when reselecting the same mode.

SET UP menu

Press " to display the SET UP menu.

• A menu item can be selected by:

• moving the ﬂ ashing cursor by using ><, then press

® (= key), or

• pressing the number key corresponding to the menu item number.

is displayed on the screen, press [ or ] to

• If

view the previous/next menu screen.

• Press ª to exit the SET UP menu.

[Selecting the Display Notation and Decimal Places]

The calculator has four display notation systems (Floating point,

Fixed decimal point, Scientiﬁ c notation and Engineering notation)

for displaying calculation results.

MEM RESET

• When the FIX, SCI, or ENG symbol is displayed, the number of

decimal places (TAB) can be set to any value between 0 and 9.

Displayed values will be reduced to the corresponding number of

digits.

• If a ﬂ oating point number does not ﬁ t in the speciﬁ ed range,

the calculator will display the result using the scientiﬁ c notation

(exponential notation) system. See 'Setting the Floating Point

Numbers System in Scientiﬁ c Notation' for details.

• Press ", followed by 0, to display the following sub-

menu:

FIX SCI ENG

0 1 2

[Setting the Floating Point Numbers System in Scientiﬁ c Notation]

The calculator has two settings for displaying a ﬂ oating point number:

NORM1 (default setting) and NORM2. In each display setting, a

number is automatically displayed in scientiﬁ c notation outside a

preset range:

• NORM1: 0.000000001

• NORM2: 0.01

9999999999

100000÷3=

ª100000/3=

[Floating point (NORM1)]

"00

→[Fixed decimal point]

"1 2

[TAB set to 2]

"01

→[SCIentiﬁ c notation]

"02

→[ENGineering notation]

→[Floating point (NORM1)] "03

3÷1000=

ª3/1000=

[Floating point (NORM1)]

→[Floating point (NORM2)] "04

→[Floating point (NORM1)] "03

Statistical Calculation Formulas

Type

Linear

y = a + bx

Exponential

y = a • e

Logarithmic

y = a + b • ln x

y = a • x

Power

Inverse

y = a + b —

Quadratic

y = a + bx + cx

In the statistical calculation formulas, an error will occur when:

• The absolute value of the intermediate result or calculation result

is equal to or greater than 1 × 10

• The denominator is zero.

• An attempt is made to take the square root of a negative number.

• No solution exists in the quadratic regression calculation.

ERROR AND CALCULATION RANGES

Errors

An error will occur if an operation exceeds the calculation ranges,

or if a mathematically illegal operation is attempted. When an error

occurs, pressing < (or >) automatically moves the cursor

back to the place in the equation where the error occurred. Edit the

equation or press ª to clear the equation.

Error Codes and Error Types

Syntax error (Error 1):

• An attempt was made to perform an invalid operation.

Ex. 2 @{

Calculation error (Error 2):

• The absolute value of an intermediate or ﬁ nal calculation result

100

equals or exceeds 10

• An attempt was made to divide by 0 (or an intermediate calculation

resulted in zero).

• The calculation ranges were exceeded while performing calculations.

Depth error (Error 3):

• The available number of buffers was exceeded. (There are 10 buffers*

for numeric values and 24 buffers for calculation instructions).

*5 buffers in STAT mode.

• Data items exceeded 100 in the statistics mode.

Equation too long (Error 4):

• The equation exceeded its maximum input buffer (142 characters).

An equation must be shorter than 142 characters.

Calculation Ranges

• Within the ranges speciﬁ ed, this calculator is accurate to

±1 of the least signiﬁ cant digit of the mantissa. However, a

calculation error increases in continuous calculations due

to accumulation of each calculation error. (This is the same

¿ , n!, e

for y

, ln, etc., where continuous calculations are

performed internally.)

Additionally, a calculation error will accumulate and become

larger in the vicinity of inﬂ ection points and singular points

of functions.

• Calculation ranges

–99

±10

~ ±9.999999999×10

If the absolute value of an entry or a ﬁ nal or intermediate result of

a calculation is less than 10

calculations and in the display.

BATTERY REPLACEMENT

Notes on Battery Replacement

Improper handling of batteries can cause electrolyte leakage or

explosion. Be sure to observe the following handling rules:

• Replace both batteries at the same time.

• Do not mix new and old batteries.

• Make sure the new batteries are the correct type.

• When installing, orient each battery properly as indicated in the

calculator.

• Batteries are factory-installed before shipment, and may be

exhausted before they reach the service life stated in the speci-

ﬁ cations.

Notes on erasure of memory contents

When the battery is replaced, the memory contents are erased.

Erasure can also occur if the calculator is defective or when it is

repaired. Make a note of all important memory contents in case

accidental erasure occurs.

When to Replace the Batteries

[EL-509W/531W/531WH] If the display has poor contrast, the bat-

teries require replacement.

[EL-531WG] If the display has poor contrast or nothing appears on

the display even when ª is pressed in dim lighting, it is time to

replace the batteries.

Cautions

• Fluid from a leaking battery accidentally entering an eye could

result in serious injury. Should this occur, wash with clean water

and immediately consult a doctor.

• Should ﬂ uid from a leaking battery come in contact with your

skin or clothes, immediately wash with clean water.

• If the product is not to be used for some time, to avoid damage

to the unit from leaking batteries, remove them and store in a

safe place.

• Do not leave exhausted batteries inside the product.

Determination of the Angular Unit

In this calculator, the following three angular units (degrees,

radians, and grads) can be speciﬁ ed.

SCIENTIFIC CALCULATIONS

• Press m0 to select the normal mode.

• In each example, press ª to clear the display. And if the

FIX, SCI, or ENG indicator is displayed, clear the indicator by

selecting 'NORM1' from the SET UP menu.

Arithmetic Operations

• The closing parenthesis ) just before = or ; may

be omitted.

Constant Calculations

• In constant calculations, the addend becomes a constant.

Subtraction and division are performed in the same manner.

For multiplication, the multiplicand becomes a constant.

• When performing calculations using constants, constants will

be displayed as K.

Functions

• Refer to the calculation examples of each function.

• Before starting calculations, specify the angular unit.

Random Function

The Random function has four settings for use in the normal or

statistics mode. (This function cannot be selected while using the

N-Base function.) Press ª to exit.

• The generated pseudo-random number series is stored in

memory Y. Each random number is based on a number series.

[Random Numbers]

A pseudo-random number, with three signiﬁ cant digits from 0 up

to 0.999, can be generated by pressing @`0®.

To generate the next random number, press ®.

[Random Dice]

To simulate a die-rolling, a random integer between 1 and 6 can

be generated by pressing @`1®. To generate

the next random dice number, press ®.

[Random Coin]

To simulate a coin ﬂ ip, 0 (head) or 1 (tail) can be randomly

generated by pressing @`2®. To generate the

next random coin number, press ®.

[Random Integer]

FSE TAB

An integer between 0 and 99 can be generated randomly by

pressing @`3®. To generate the next random

integer number, press ®.

Angular Unit Conversions

Each time @g are pressed, the angular unit changes in

sequence.

Memory Calculations

This calculator has 8 temporary memories (A-F, X and Y), one

independent memory (M) and one last answer memory (ANS).

The independent memory and temporary memories are only avail-

able in the normal mode.

[Temporary memories (A-F, X and Y)]

Press O and a corresponding variable key to store a value in

memory.

Press R and a corresponding variable key to recall a value

from the memory.

To place a variable in an equation, press K, followed by a

desired variable key.

[Independent memory (M)]

In addition to all the features of temporary memories, a value can

be added to or subtracted from an existing memory value.

→

NORM1 NORM2

Press ªOM to clear the independent memory (M).

]

[Last answer memory (ANS)]

The calculation result obtained by pressing = or any other

calculation ending instruction is automatically stored in the last

answer memory.

Note:

• Calculation results from the functions indicated below are au-

9999999999

tomatically stored in memories X or Y. For this reason, when

using these functions, be careful with the use of memories X

and Y.

33'333.33333

• Random function .................Y memory

• →rθ, →xy ..............................X memory (r or x),

33'333.33333

33'333.33

3.33×10

• Temporary memories and last answer memory are cleared

33.33×10

even when the same mode is reselected.

• Use of R or K will recall the value stored in memory

33'333.33333

using up to 14 digits.

0.003

Chain Calculations

3. ×10

–03

• This calculator allows the previous calculation result to be

0.003

used in the following calculation.

• Do not ﬁ t partially used batteries, and be sure not to mix

batteries of different types.

Regression formula

• Keep batteries out of the reach of children.

• Exhausted batteries left in the calculator may leak and damage

the calculator.

• Explosion risk may be caused by incorrect handling.

• Do not throw batteries into a ﬁ re as they may explode.

Replacement Procedure

1. Turn the power off by pressing @F.

2. Remove two screws. (Fig. 1)

3. Slide the battery cover slightly and lift it to remove.

4. [EL-509W/531W/531WG] Remove the used batteries by pry-

ing them out with a ball-point pen or other similar pointed de-

100

vice. (Fig. 2)

[EL-531WH] Remove the used battery.

5. [EL-509W/531W/531WG] Install two new batteries. Make sure

the "+" side is facing up.

[EL-531WH] Install one new battery. First insert the " – " side

toward the spring. (Fig. 3)

6. Replace the cover and screws.

7. Press the RESET switch (on the back).

• Make sure that the display appears as shown below. If the dis-

play does not appear as shown, remove the batteries reinstall

them and check the display once again.

(Fig. 1)

Automatic Power Off Function

This calculator will turn itself off to save battery power if no key is

pressed for approximately 10 minutes.

SPECIFICATIONS

Calculations:

Internal calculations:

Pending operations:

Power source:

and 0.

Power consumption:

–99

, the value is considered to be 0 in

Operating time:

Operating temperature: 0°C – 40°C (32°F – 104°F)

External dimensions:

Weight:

Accessories:

FOR MORE INFORMATION ABOUT

SCIENTIFIC CALCULATOR

Visit our Web site.

http://sharp-world.com/calculator/

DEG (°)

Press G

(rad)

GRAD (g)

RAD

Y memory (θ or y)

(Fig. 2)

(Fig. 3)

Scientiﬁ c calculations, statistical calcula-

tions, etc.

Mantissas of up to 14 digits

24 calculations 10 numeric values

(5 numeric values in STAT mode)

[EL-509W/531W]

3V ¶ (DC):

Alkaline batteries (LR44 or equivalent) × 2

[EL-531WG]

Built-in solar cells

3 V ¶ (DC):

Backup batteries

(Alkaline batteries (LR44 or equivalent) × 2)

[EL-531WH]

1.5V ¶ (DC):

Heavy duty manganese battery

(size AA or R6) × 1

[EL-509W/531W]

0.0002 W

[EL-531WH]

0.0001 W

[EL-509W/531W]

Approx. 5000 hours

[EL-531WH]

Approx. 17000 hours

when continuously displaying 55555. at

25°C (77°F).

Varies according to use and other factors.

[EL-509W/531W/531WG]

79.6 mm (W) × 154.5 mm (D) × 13.2 mm (H)

3-1/8" (W) × 6-3/32" (D) × 17/32" (H)

[EL-531WH]

79.6 mm (W) × 154.5 mm (D) × 18.2 mm (H)

3-1/8" (W) × 6-3/32" (D) × 23/32" (H)

[EL-509W/531W]

Approx. 95 g (0.21 lb) (Including batteries)

[EL-531WG]

Approx. 97 g (0.22 lb) (Including batteries)

[EL-531WH]

Approx. 110 g (0.25 lb) (Including battery)

[EL-509W/531W/531WG]

Batteries × 2 (installed), operation manual,

quick reference card and hard case

[EL-531WH]

Battery × 1 (installed), operation manual,

quick reference card and hard case

Summary of Contents for Sharp EL-509W

Page 1 This calculator has 8 temporary memories (A-F, X and Y), one use an object with a breakable or sharp tip. Note that pressing This key combination functions the same as the RESET switch. [Selecting the Display Notation and Decimal Places] independent memory (M) and one last answer memory (ANS).
Page 2 ENGLISH sutSUTVGhH KRO;:? êûîìíãâ†ä Ile¡•L÷⁄™$ àá #!qQ% ª 56 OA A=56 EL-509W 68 OB ª@í 25 @ê B=68 DEC(25)→BIN 11001 KA/ 2 + ªs 60 = A÷2+B×4= EL-531W sin60[°]= 0.866025403 @ì 1AC HEX(1AC) KB* 4 = 300. EL-531WG →BIN @ê...

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El-531wEl-531wgEl-531wh

Sharp EL-509W Operation Manual

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Summary of Contents for Sharp EL-509W

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