Sharp Calculator EL 509V User Manual

The multi-line memory is cleared by the following opera-  
tions: @c, @F (including the Automatic  
Power Off feature), mode change, RESET, @`,  
@?, constant calculation, angle conversion/change,  
coordinate conversion, numerical value storage to the tem-  
porary memories and independent memory, and input/dele-  
tion of statistical data.  
Calculation ranges  
Chain Calculations  
This calculator allows the previous calculation result to be  
used in the following calculation.  
For example, you can calculate by ⁄= and s=.  
The previous calculation result will not be recalled after enter-  
ing multiple instructions.  
(7)  
ENGLISH  
±10-99 ~ ±9.999999999×1099 and 0.  
If the absolute value of an entry or a final or intermediate  
result of a calculation is less than 1099, the value is consid-  
ered to be 0 in calculations and in the display.  
SCIENTIFIC  
CALCULATOR  
EL-509V EL-509VH  
MODEL EL-531V EL-531VH  
OPERATION MANUAL  
Fraction Calculations  
(8)  
BATTERY REPLACEMENT  
PRINTED IN CHINA / IMPRIMÉ EN CHINE  
Priority Levels in Calculation  
This calculator performs operations according to the following  
priority:  
This calculator performs arithmetic operations and memory  
calculations using a fraction, and conversion between a deci-  
mal number and a fraction.  
00KUP (TINSK0424THZZ)  
Notes on Battery Replacement  
Improper handling of batteries can cause electrolyte leakage  
or explosion. Be sure to observe the following handling rules:  
1
Functions preceded by their argument (x-1, x2, n!, etc.)  
2
In all cases, a total of up to 10 digits including integer,  
numerator, denominator and the symbol (l) can be entered.  
If the number of digits to be displayed is greater than 10, the  
number is converted to and displayed as a decimal number.  
A decimal number, variable, or exponent cannot be used in  
a fraction.  
Yx,  
4
¿
3
Implied multiplication of a memory value (2Y, etc.)  
x
INTRODUCTION  
Replace both batteries at the same time.  
Do not mix new and old batteries.  
Functions followed by their argument (sin, cos, etc.)  
5
About operation examples, please refer to the attached sheet.  
Refer to the number on the right of each title for use.  
After reading this manual, store it in a convenient location for  
future reference.  
Implied multiplication of a function (2sin30, etc.)  
6
nC  
r,  
nP  
r
7
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  
specifications.  
×, ÷ +, –  
8
=, M+, M, M, |DEG, |RAD, |GRAD,  
9
DATA, CD, rθ, xy and other calculation ending instruction  
If parentheses are used, parenthesized calculations have  
precedence over any other calculations.  
Note: Some of the models described in this manual may not  
Time, Decimal and Sexagesimal Calculations (9)  
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.  
be available in some countries.  
Operational Notes  
INITIAL SETUP  
When to Replace the Batteries  
If the display has poor contrast, the batteries require replace-  
ment.  
To ensure trouble-free operation, please observe the follow-  
ing points:  
1. Do not carry the calculator in the back pocket of slacks or  
trousers.  
2. Do not subject the calculator to extreme temperatures.  
3. Do not drop it or apply excessive force.  
4. Clean only with a soft, dry cloth.  
Mode Selection  
Coordinate Conversions  
(10)  
Before performing a calculation, select the angular unit.  
Normal mode (NORMAL): @m0  
Used to perform arithmetic operations and function calcula-  
tions.  
Caution  
Y
Y
P (x,y)  
P (r,  
θ
)
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.  
Batteries must be replaced only with others of the same  
type.  
r
y
θ
5. Do not use or store the calculator where fluids can splash  
X
X
Single-variable statistics mode (STAT x): @m1  
Used to perform 1-variable statistical calculations.  
0
0
x
onto it.  
Rectangular coord.  
Polar coord.  
Press the RESET switch only in the following cases:  
When using for the first time  
After replacing the batteries  
Two-variable statistic mode (STAT xy): @m2  
Used to perform 2-variable statistical calculations.  
The calculation result is automatically stored in memories X  
and Y.  
Do not throw batteries into a fire as they may explode.  
To clear all memory contents  
When an abnormal condition occurs and all keys are  
inoperative.  
Value of r or x: X memory  
Value of θ or y: Y memory  
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-509V/EL-531V] Remove the used batteries by prying  
them with a ball-point pen or other similar pointed device.  
(Fig. 2)  
When executing mode selection, temporary memories, statis-  
tical data and last answer memory will be cleared even when  
reselecting the same mode.  
If service should be required on this calculator, use only a  
SHARP servicing dealer, SHARP approved service facility, or  
SHARP repair service where available.  
Modify Function  
(11)  
In this calculator, all calculation results are internally obtained  
in scientific notation with up to 12 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 converted to match that of the display, so that  
the displayed value can be used without change in subse-  
quent operations.  
Selecting the Display Notation and Decimal Places  
The calculator has four display notation systems for display-  
ing calculation results. When FIX, SCI, or ENG symbol is  
displayed, the number of decimal places can be set to any  
value between 0 and 9. Displayed values will be reduced to  
the corresponding number of digits.  
Hard Case  
[EL-509VH/EL-531VH] Remove used batteries.  
5. Install two new batteries.  
[EL-509V/EL-531V] Make sure the +side facing up.  
[EL-509VH/EL-531VH] First insert the “ – ” side to the  
spring. (Fig. 3)  
100000÷3=  
[Floating point]  
[Fixed decimal point] @f  
[TAB set to 2]  
[SCIentific notation]  
[ENGineering notation] @f  
[Floating point] @f  
ª100000/3=  
33333.33333  
33333.33333  
33333.33  
6. Replace the back cover and screws.  
7. Press the RESET switch (on the back).  
@i 2  
Make sure that the display appears as shown below. If the  
display does not appear as shown, remove the batteries  
reinstall them and check the display once again.  
STATISTICAL CALCULATIONS  
@f  
3.33×104  
33.33×103  
33333.33333  
Press @ m 1 to select single-variable statistics  
mode and @ m 2 to select two- variable statistics  
mode. The following statistics can be obtained for each statis-  
tical calculation (refer to the table below):  
DISPLAY  
Symbol  
If the value for floating point system does not fit in the  
following range, the calculator will display the result using  
scientific notation system:  
Equation  
Display  
Single-variable statistical calculation  
(12)  
0.000000001 | x | 9999999999  
(Fig. 1)  
(Fig. 2)  
(Fig. 3)  
Statistics of  
1
Exponent  
Mantissa  
Determination of the Angular Unit  
In this calculator, the following three angular units can be  
specified.  
Linear regression calculation  
(13)  
(During actual use not all symbols are displayed at the same  
time.)  
If the value of mantissa does not fit within the range  
±0.000000001 ±9999999999, the display changes to scien-  
tific notation. The display mode can be changed according to  
the purpose of the calculation.  
Statistics of  
1
and  
2
and, in addition, estimate of y for a  
given x (estimate y’) and estimate of x for a given y (esti-  
mate x’)  
DEG (°)  
Press G  
x
sx  
σx  
n
Mean of samples (x data)  
(Radians)  
RAD  
GRAD (g)  
Sample standard deviation (x data)  
Population standard deviation (x data)  
Number of samples  
Automatic Power Off Function  
This calculator will turn itself off to save battery power if no  
key is pressed for approximately 10 minutes.  
1
: Appears when the entire equation cannot be dis-  
played. Press </> to see the remaining (hid-  
den) section.  
/
Σx  
Σx2  
y
Sum of samples (x data)  
Sum of squares of samples (x data)  
Means of samples (y data)  
SCIENTIFIC CALCULATIONS  
2ndF : Appears when @ is pressed, indicating that the  
SPECIFICATIONS  
functions shown in orange are enabled.  
Press @ m 0 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 pressing @ f.  
sy  
σy  
Σy  
Σy2  
Σxy  
r
Sample standard deviation (y data)  
Population standard deviation (y data)  
Sum of samples (y data)  
Sum of squares of samples (y data)  
Sum of products of samples (x, y)  
Correlation coefficient  
HYP  
: Indicates that h has been pressed and the hy-  
perbolic functions are enabled. If @ H are  
pressed, the symbols 2ndF HYPappear, indicat-  
ing that inverse hyperbolic functions are enabled.  
Calculations:  
Scientific calculations, statistical cal-  
culations, etc.  
Mantissas of up to 12 digits  
16 calculations 8 numeric values  
(4 numeric values in STAT mode)  
3V (DC):  
Internal calculations:  
Pending operations:  
2
Arithmetic Operations  
(2)  
ALPHA: Indicates that @ K or O (R) has been  
pressed, and entry (recall) of memory contents and  
recall of statistics can be performed.  
The closing parenthesis ) just before = or ;  
may be omitted.  
Power source:  
[EL-509V/EL-531V]  
a
b
Coefficient of regression equation (y=a+bx)  
Coefficient of regression equation (y=a+bx)  
Alkaline batteries (LR44) × 2  
[EL-509VH/EL-531VH]  
Heavy duty manganese batteries  
(size AA or R6) × 2  
0.0006 W  
[EL-509V/EL-531V]  
Approx. 2500 hours  
[EL-509VH/EL-531VH]  
Approx. 15000 hours  
when continuously displaying 55555.  
at 25°C (77°F).  
Constant Calculations  
(3)  
FIX/SCI/ENG: Indicates the notation used to display a value  
In the constant calculations, the addend becomes a con-  
and changes each time @ f are pressed.  
Entered data are kept in memory until @ c or  
m 1 (2) are pressed. Before entering new data,  
clear the memory contents.  
@
stant. Subtraction and division are performed in the same  
manner. For multiplication, the multiplicand becomes a con-  
stant.  
When performing calculations using constants, constants  
will be displayed as K.  
DEG/RAD/GRAD: Indicates angular units and changes each  
time G is pressed.  
Power consumption:  
Operating time:  
STAT  
: Appears when statistics mode is selected.  
[Data Entry]  
Single-variable data  
M
: Indicates that a numerical value is stored in the  
Data k  
independent memory.  
Data & frequency k (To enter multiples of the  
same data)  
Functions  
(4)  
Refer to the operation examples of each function.  
Before starting calculations, specify the angular unit.  
Two-variable data  
Varies according to use and other  
factors.  
BEFORE USING THE CALCULATOR  
Data x & Data y k  
Data x & Data y & frequency k (To enter  
multiples of the same data x and y.)  
The results of inverse trigonometric functions are displayed  
within the following range:  
Operating temperature: 0°C 40°C (32°F 104°F)  
External dimensions:  
Key Notation Used in this Manual  
θ = sin1 x, θ = tan1 x  
θ = cos1 x  
[EL-509V/EL-531V]  
78.6 mm (W) × 152 mm (D) × 10.5  
mm (H)  
3-3/32(W) × 5-31/32(D) × 13/32”  
(H)  
[EL-509VH/EL-531VH]  
78.6 mm (W) × 166 mm (D) × 19.5  
mm (H)  
In this manual, key operations are described as follows:  
[Data Correction]  
Correction prior to pressing k:  
Delete incorrect data with ª.  
ex  
x
To specify ex : @e  
To specify ln :  
To specify x : @KX  
DEG  
90 ≤ θ ≤ 90  
0 ≤ θ ≤ 180  
ln  
I
π
π
RAD  
≤ θ ≤  
0 ≤ θ ≤ π  
2
2
Correction after pressing k:  
Press > to confirm the latest entry and press @  
J to delete it.  
GRAD  
100 ≤ θ ≤ 100  
0 ≤ θ ≤ 200  
Functions that are printed in orange above the key require  
@ to be pressed first before the key. When you specify the  
memory, press @K first. Numbers are not shown as  
keys, but as ordinary numbers.  
Random Numbers  
Statistical Calculation Formulas  
Refer also to the operation examples sheet.  
In the statistical calculation formulas, an error will occur when:  
(14)  
3-3/32(W) × 6-17/32(D) × 25/32(H)  
[EL-509V/EL-531V]  
A pseudo-random number with three significant digits can be  
generated by pressing @ ` =. To generate the  
next random number, press =. You can perform this func-  
tion in the normal and statistics modes.  
Weight:  
Approx. 75 g (0.166 lb)  
(Including batteries)  
[EL-509VH/EL-531VH]  
Approx. 115 g (0.254 lb)  
(Including batteries)  
Batteries × 2 (installed), operation  
manual, operation examples sheet,  
quick reference card and hard case  
Power On and Off  
the absolute value of the intermediate result or calculation  
result is equal to or greater than 1 × 10100  
.
Press ª to turn the calculator on, and @F to turn it off.  
Random numbers use memory Y. Each random number is  
generated on the basis of the value stored in memory Y  
(pseudo-random number series).  
the denominator is zero.  
an attempt is made to take the square root of a negative  
number.  
Clearing Methods  
There are three clearing methods as follows:  
Accessories:  
Clearing  
operation  
Entry  
(Display)  
M*1  
A-D, X,Y*2  
STAT, ANS  
Angular Unit Conversions  
Each time @ g are pressed, the angular unit changes  
(5)  
ERROR AND CALCULATION RANGES  
in sequence.  
ª
×
×
×
Errors  
Memory Calculations  
(6)  
@c  
RESET  
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.  
FOR MORE INFORMATION ABOUT THIS  
CALCULATOR  
This calculator has 6 temporary memories (A-D, X and Y),  
one independent memory (M) and one last answer memory.  
Independent memory and temporary memories are only avail-  
able in the normal mode.  
Visit our Web site.  
: Clear  
Independent memory M.  
Temporary memories A-D, X and Y, statistical data, and  
× : Retain  
1
*
*
2
[Temporary memories (A-D, X and Y)]  
A stored value can be recalled as a value or variable for the  
use in equations.  
Error Codes and Error Types  
last answer memory.  
Editing the Equation  
In case you store an infinite decimal in the memory, recall it  
as a variable to obtain accurate answers.  
Syntax error (Error 1):  
An attempt was made to perform an invalid operation.  
Press < or > to move the cursor. You can also  
return to the equation after getting an answer by pressing  
> (<). See below for Multi-line playback function.  
If you need to delete a number, move the cursor to the  
number you wish to delete then press d.  
Ex. 2 @{  
Ex.) 1 / 3 O Y  
3 * R Y =  
(0.3333...is stored to Y)  
Calculation error (Error 2):  
0.999999999  
1.  
The absolute value of an intermediate or final calculation result  
equals or exceeds 10100  
.
3 * @ K Y =  
The number under the cursor will be deleted.  
An attempt was made to divide by 0.  
The calculation ranges were exceeded while performing calcu-  
lations.  
[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.  
If you need to insert a number, move the cursor to the place  
immediately after where you wish to insert the number then  
enter the number.  
Depth error (Error 3):  
The available number of buffers was exceeded. (There are 8  
buffers* for numeric values and 16 buffers for calculation in-  
structions). *4 buffers in STAT mode.  
[Last answer memory (ANS)]  
Multi-line Playback function  
(1)  
The calculation result obtained by pressing = or any other  
calculation ending instruction is automatically stored in the  
last answer memory.  
This calculator is equipped with a function to recall previous  
equations. Equations also include calculation ending instruc-  
tions 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 first. Pressing [ will  
display the previous equation and the answer. Further press-  
ing [ will display preceding equations (after returning to  
the previous equation, press ] to view equations in or-  
der). In addition, @[ can be used to jump to the oldest  
equation.  
Equation too long (Error 4):  
The equation exceeded its maximum input buffer (142 charac-  
ters). An equation must be shorter than 142 characters.  
Note:  
Calculation results from the functions indicated below are  
automatically stored in memories X or Y. For this reason,  
when using these functions, be careful with the use of memo-  
ries X and Y.  
Calculation Ranges  
Refer also to the operation examples sheet.  
(15)  
Random numbers .................. Y memory  
rθ, xy ............................... X memory, Y memory  
Within the ranges specified, this calculator is accurate to ±1  
in the least significant digit of the mantissa. When perform-  
ing continuous calculations (including chain calculations),  
errors accumulate leading to reduced accuracy.  
Temporary memories and last answer memory are cleared  
even when the same mode is reselected.  
 

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