Sharp EL-530M Owner Manual

EL 530M

EL-530LV_EN
ENGLISH
PRINTED IN CHINA
03AGK (TINSE0470THZZ)
EL-530M
SCIENTIFIC CALCULATOR
OPERATION MANUAL
MODEL
INTRODUCTION
Thank you for purchasing the SHARP Scientific Calculator
Model EL-530M. This calculator will help you understand math-
ematical concepts behind fraction calculation, such as simpli-
fication and reduction.
After reading this manual, store it in a convenient location for
future reference.
Operational Notes
To ensure trouble-free operation, observe the following 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.
5. Do not use or store the calculator where fluids can splash
onto it.
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 periph-
erals, unless such liability is acknowledged by law.
♦ Press the RESET switch (on the back) only in the following
cases:
• When using for the first time
• After replacing the batteries
• To clear all memory contents
• When an abnormal condition occurs and all keys are
inoperative.
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
Mantissa
Exponent
(All symbols will not be displayed simultaneously, as shown above.)
/
: Appears when the entire equation cannot be dis-
played. Press </> to see the remaining (hid-
den) section.
2ndF
: Appears when @ is pressed, indicating that the
functions shown in orange are enabled.
SIMP
: Indicates that a fraction can be simplified further, or
expressed with a lower denominator.
M
: Indicates that a numerical value is stored in the
independent memory.
BEFORE USING THE CALCULATOR
Key Notation Used in this Manual
In this manual, key operations are described as follows:
To specify 
π
: @V
To specify Exp : E
To access functions printed in orange above keys, press @
first.
In this manual, number entry examples are shown with ordi-
nary numbers (i.e., “100” will be indicated instead of
“100”).
Power On and Off
Press N to turn the calculator on, and @F to turn it off.
Clearing Methods
• Press N to clear the entries.
• To clear the independent memory (M), press NO.
Editing the Equation
• Press < or > to move the cursor.
To return to the equation after getting an answer, press
< (>).
• To delete a number, place the cursor on the number to be
deleted, then press d.
• To insert a number, move the cursor to the place immedi-
ately after where the number is to be inserted, then enter
the number.
Random Numbers
A pseudo-random number with three significant digits can be
generated by pressing @`=. To generate the next
random number, press =.
Memory Calculations
This calculator has two memory allocations: independent
memory (M), and last answer memory (ANS). You will find
them especially useful when combinations of calculations be-
come complicated, or when using the answer of previous
calculation to another operations.
Press NO to clear the independent memory (“M” sym-
bol will disappear).
Independent memory (M)
O : Stores the result in the memory.
R : Recalls the value stored in the memory.
@; : Adds the result to the value in the memory.
Last answer memory (ANS)
When  =  is pressed, the calculation result will automati-
cally be stored in the last answer memory.
@? : Recalls the value stored in last answer memory.
4 ÷ 5 = 0.8…(A) N 4 / 5 =
0.8
× (A) + 60 ÷ (A) = 4 *@?+ 60 /
@?=
78.2
Now that you have learned how to reduce a fraction to its
lowest denominator, you can start using your calculator
to perform fraction calculations quickly and efficiently.
*
If  =  is pressed instead of a number entry, the least
common denominator will automatically be displayed.
Conversion from/to a Fraction
º : Converts a decimal or improper fraction to a
mixed fraction.
æ : Converts a mixed fraction or decimal to an im-
proper fraction. In some cases, a decimal may
not be converted to a fraction.
ø : Converts an improper fraction or a mixed frac-
tion to a decimal.
 SCIENTIFIC CALCULATIONS
Arithmetic Operations
12+16
×3=
N 12 + 16 * 3 =
60.
350-120÷4=
350 - 120 / 4 =
320.
72
×(-12)-150=
72 *– 12 - 150 =
–1014.
(5+21)
×(30-16)= ( 5 + 21 )*
( 30 - 16 )=
364.
(6
×10
3
)÷(2
×10
-4
)= ( 6 E 3 )/
( 2 E– 4 )=
30000000.
Constant Calculations
In the constant calculations, the addend becomes a constant.
Subtraction and division are performed in the same manner.
For multiplication, the multiplicand becomes a constant.
245+60=
N 245 + 60 =
305.
12+60=
N 2
12 
+ 60 
=
72.
150-20=
150 - 20 =
130.
250-20=
250
 - 20 
=
230.
200÷4=
200 / 4 =
50.
180÷4=
180
 / 4 
=
45.
15
×3=
15 * 
0
3 =
45.
15
×10=
15 - 
10 =
150.
Functions
• For each example, press N to clear the display.
• The results of inverse trigonometric functions are displayed
within the following range:
4– =
N 4 ∞ 5 Ø 6 =
4
¬
¬
¬
¬
¬5/6
→ [A.xxx]
ø
4.833333333
→ [A/B]
æ
29/6
1 ÷ 3 =
1 / 3 =
0.333333333
→ [A/B]
æ
1/3
6 ÷ 5 =
6 / 5 =
1.2
→ [A/B]
æ
SIMP        
12/10
→ [A
B
/
C
]
º
SIMP     
1
¬
¬
¬
¬
¬2/10
→ [A.xxx]
ø
1.2
1.25 + – =
1.25 + 2 Ø 5 =
1.65
→ [A
B
/
C
]
º
SIMP
1
¬
¬
¬
¬
¬65/100
ª==
1
¬
¬
¬
¬
¬13/20
5
6
2
5
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 oc-
curred. Edit the equation or press N to clear the equation.
Error Codes and Error Types
Syntax error (Error 1):
An attempt was made to perform an invalid operation.
Ex. 2 +- 5 =
Calculation error (Error 2):
The absolute value of an intermediate or final calculation result
equals or exceeds 10
100
.
An attempt was made to divide by 0.
The calculation ranges were exceeded while performing calcu-
lations.
Depth error (Error 3):
The available number of buffers was exceeded. (There are 8
buffers for numeric values and 16 buffers for calculation instruc-
tions).
Equation too long (Error 4):
The equation exceeded its maximum input buffer (159 charac-
ters). An equation must be shorter than 159 characters.
15 + 8
N 15 + 8
15+8_
15 – 3
<<dd
15_
- 3
15–3_
13 
× 24 =
N 13 * 24 =
312.
<(>)
13
×24
15 
× 24 =
>d 5 =
360.
Priority Levels in Calculation
This calculator performs operations according to the following
priority:
1 Functions expressed with numerical data placed before
(such as x
-1
, x
2
)
2 y
x
x
¿  
y
3
π
4 Functions expressed with numerical data placed after (such
as sin, cos)
5 Multiplications with the sign “
×” omitted from the front of a
function (such as 3cos20)
Y
×, ÷
U +, –
I Operations end commands (such as =, M+, %)
A  parenthesized calculation section has precedence over
other sections of the calculation.
Scientific Notation
People who need to deal with very large and very small num-
bers often use a special format called exponential or scientific
notation.
A number expressed in scientific notation has two parts. The
first part consists of a regular decimal number between 1 and
10. The second part represents how large or small the number
is in powers of 10.
While a calculation result is displayed in the floating point
system, press @´ to display the result in the scientific
notation system. Pressing @´  once again will bring
back the floating point system.
To enter a number in scientific notation, press E.
sin30° =
Ns 30 =
0.5
cos60° =
u 60 =
0.5
tan45° =
t 45 =
1.
sin
–1
0.5 =
@S 0.5 =
30.
cos
–1
0.5 =
@U 0.5 =
60.
tan
–1
1 =
@T 1 =
45.
3
2
 + 5
2
 =
3 @L + 5 @L=
34.
√32 + 
3
√21 =
⁄ 32 + 3 @$ 21 =
8.415778426
7
4
 =
7 @™ 4 =
2401.
– =
@V/ 3 =
1.047197551
– + – =
4 @¨ + 5 @¨=
0.45
200 
× 32% =
200 * 32 @%
64.
150 ÷ 300 = ? % 150 / 300 @%
50.
200 + (200 
× 32%) = 200 + 32 @%
264.
300 – (300 
× 25%) = 300 - 25 @%
225.
π
3
1
4
1
5
Calculating with Fractions
Fractions can be incorporated in an arithmetic calculation.
“SIMP” symbol will appear with a calculation result if the an-
swer can further be simplified. Refer to the following section
of this manual for details.
How to Simplify a Fraction
Reducing to its simplest form
If the result of pressing =  is displayed with the “SIMP”
symbol, the calculation can be reduced further. Use the ª
key to set the factor of the fraction to simplify, either automati-
cally or manually.
[Automatic Simplification]
* If you cannot come up with a common factor, press =.
The greatest common factor “6” will be displayed.
[Manual Simplification]
* “2” is entered as a factor, and the “SIMP” will be displayed
 to indicate further simplification of the fraction.
If the entered value is not a common factor, the cursor will
be set under the value. Press d to clear the value, then
enter a correct common factor. Press N to return to the
“FACTOR?” display.
Now that you have learned how to reduce a fraction to its
simplest form, you can start using your calculator to per-
form fraction calculations quickly and efficiently.
– + – =
N 1 Ø 2 + 1 Ø 3 =
5/6
– 
× – =
2 Ø 5 * 1 Ø 3 =
2/15
1
2
2
5
1
3
1
3
– + — = N 1 Ø 3 + 2 Ø 12 =
SIMP 
6/12
                                                      ªFACTOR?
SIMP
 
6/12
                                                      =*6_
SIMP
 
6/12
                                                      =
1/2
1
3
2
12
– + — = N 1 Ø 3 + 2 Ø 12 =
SIMP 
6/12
                                                      ªFACTOR?
SIMP
 
6/12
                                                   2 =*
SIMP
 
2
3/6
                                         ª 3 =
1/2
1
3
2
12
– + — = N 5 Ø 6 + 1 Ø 14 =
SIMP 
38/42
                                                      =*
19/21
5
6
1
14
*
If = is pressed instead of ª, the number will auto-
matically be reduced down to its simplest form with the
greatest common factor.
– + – =
         N 1 Ø 3 + 1 Ø 4
1/3+1/4_
                                                    ªDENOM.?
SIMP
 
28/48
                                                    =*       
12_
SIMP
 
28/48
                                                    =
4/12+3/12_
                                                    =
7/12
1
3
1
4
Calculation Ranges
• Within the ranges specified below, this calculator is
accurate to ±1 in the least significant digit of the
mantissa. However, a calculation error increases in con-
tinuous calculations due to accumulation of each cal-
culation error. (This is the same for y
x
x
¿
¿
¿
¿
¿
y
, etc. where
continuous calculations are performed internally.)
Additionally, a calculation error will accumulate and
become larger in the vicinity of inflection points and
singular points of functions.
• Calculation range: ±10
-99
 ~ ±9.999999999
×10
99
 and 0.
If the absolute value of an entry or a final or intermediate
result of a calculation is less than 10
–99
, the value is consid-
ered to be 0 in 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.
• The factory-installed batteries may be exhausted before
they reach the service life stated in the specifications.
When to Replace the Batteries
If the display has poor contrast or nothing appears on the
display even when N is pressed, it is time to replace the
batteries.
Caution
• 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 fluid from a leaking battery come into 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.
• Do not fit partially used batteries, and be sure not to mix
batteries of different types.
• 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 fire as they may explode.
N 3 * 5 O
15.
M
30 + (3 
× 5) =
30 +R=
45.
M
(3 
× 5) × 4 =
R* 4 =
60.
M
20+10–5=
N 20 + 10 - 5 O
25.
M
121+13
×2=
121 + 13 * 2 @;
147.
M
+) 21
×3–16=
21 * 3 - 16 @;
47.
M
(Total)
R
219.
M
NO
 FRACTION CALCULATIONS
Entering Fractions
• To enter fractions, use the following keys:
Ø : Places the symbol “
/” between the numerator
and the denominator.
∞ : Separates the integer (whole number) part from
the fractional part of a mixed number.
• Up to 10 key strokes, including “¬” and “
/”, can be used to
enter a fraction.
4
– =
N 2 Ø 3 =
2/3
4– =
4 ∞ 1 Ø 2 =
4
¬
¬
¬
¬
¬1/2
  2
  3
1
2
Reducing to its lowest denominator
Prior to pressing the = key, a common denominator can
be set to organize calculations.
*
Enter a common denominator of the two fractions.
If the entered value is not a common denominator, the
cursor will be set under the value. Press d to clear the
value, then enter a correct common denominator. Press
N to return to the “DENOM.?” display.
– + – =
         N 1 Ø 3 + 1 Ø 4
1/3+1/4_
                                                    ªDENOM.?
SIMP
 
28/48
                                               48 =*
16/48+12/48_
                                                    =
SIMP 
28/48
1
3
1
4
SPECIFICATIONS
Calculations:
General arithmetic operations (add,
subtract, multiply, divide, operations with
constants, memory operations, fraction
operations, function operations, etc.)
Pending operations:
16 calculations 8 numeric values
Power source:
3V ¶ (DC):
Alkaline batteries (LR44) 
× 2
Power consumption:
0.0006 W
Operating time:
Approx. 2000 hours, when continuously
displaying 55555. at 25ºC.
May vary according to usage and other
factors.
Operating temperature: 0°C – 40°C (32°F – 104°F)
External dimensions:
78.6
 
mm
 
(W)
 
×
 
144
 
mm
 
(D)
 
×
 
10.5
 
mm
 
(H)
3-3/32” (W) 
× 5-21/32” (D) × 13/32” (H)
Weight:
Approx. 68 g (0.150 lb)
(Including batteries)
Accessories:
Batteries 
× 2 (installed), operation
manual, quick reference card and
hard case.
This equipment complies with the requirements of Directive 89/336/EEC as amended by 93/
68/EEC.
Dieses Gerät entspricht den Anforderungen der EG-Richtlinie 89/336/EWG mit Änderung 93/
68/EWG.
Ce matériel répond aux exigences contenues dans la directive 89/336/CEE modifiée par la
directive 93/68/CEE.
Dit apparaat voldoet aan de eisen van de richtlijn 89/336/EEG, gewijzigd door 93/68/EEG.
Dette udstyr overholder kravene i direktiv nr. 89/336/EEC med tillæg nr. 93/68/EEC.
Quest’apparecchio è conforme ai requisiti della direttiva 89/336/EEC come emendata dalla
direttiva 93/68/EEC.
∏ ÂÁηٿÛÙ·ÛË ·˘Ù‹ ·ÓÙ·ÔÎÚ›ÓÂÙ·È ÛÙȘ ··ÈÙ‹ÛÂȘ ÙˆÓ Ô‰ËÁÈÒÓ Ù˘ ∂˘Úˆ·˚΋˜
∂ÓˆÛ˘ 89/336/∂√∫, fiˆ˜ Ô Î·ÓÔÓÈÛÌfi˜ ·˘Ùfi˜ Û˘ÌÏËÚÒıËΠ·fi ÙËÓ Ô‰ËÁ›· 93/68/∂√∫.
Este equipamento obedece às exigências da directiva 89/336/CEE na sua versão corrigida
pela directiva 93/68/CEE.
Este aparato satisface las exigencias de la Directiva 89/336/CEE, modificada por medio de la
93/68/CEE.
Denna utrustning uppfyller kraven enligt riktlinjen 89/336/EEC så som kompletteras av 93/68/
EEC.
Dette produktet oppfyller betingelsene i direktivet 89/336/EEC i endringen 93/68/EEC.
Tämä laite täyttää direktiivin 89/336/EEC vaatimukset, jota on muutettu direktiivillä 93/68/
EEC.
FOR MORE INFORMATION
Visit us on the Internet at:  http://sharp-world.com/calculator/
Replacement Procedure
1. Turn the power off by pressing @F.
2. Loosen both screws and remove the bat-
tery cover.
3. Replace the old batteries with new, with
the positive (+) sides facing up.
4. Replace the battery cover and screws.
5. Press the RESET switch on the back.
• Make sure that the display appears
as shown. Otherwise, remove the bat-
teries, reinstall, and check the dis-
play again.
Automatic Power Off Function
This calculator will turn its power off automatically if no key is
pressed for about 10 minutes.
(1.2 
× 10
20
× (1.5 × 10
5
)
1.2 E 20 * 1.5 E 5 =
1.8
×10
25
3 ÷ 7 =
[Floating point]
N 3 / 7 =
0.428571428
→ [Scientific notation] @´
4.285714286
×10
–01
[TAB set to 2]
@i 2
4.29
×10
–01
→ [Floating point]
0.428571428
• Use  @´  to switch to the scientific notation, press
@i, then give a value between 0 and 9 to set the
decimal placement. To reset, press @i 9.
• The number will be displayed in scientific notation if the
floating point value does not fit in the following range:
0.000000001 
≤ | x | ≤ 9999999999
• The last decimal digit in scientific notation will be rounded off.
* n:  positive integers
Function
Calculation range
sin x
DEG : |x| < 10
10
cos x
   
(tan x : |x| 
≠ 90(2n–1))*
tan x
sin
–1
x
|x| 
≤ 1
cos
–1
x
tan
–1
x
|x| 
≤ 10
100
. y > 0: –10
100
 < xlogy < 100
y
x
. y = 0: 0 < x < 10
100
. y < 0: x = n (0 < |x| < 1: – = 2n–1, x 
≠ 0)*,
  –10
100
 < xlog |y| < 100
. y > 0: –10
100
 < – Iny 
≤ 230.2585092 (x ≠ 0)
x
¿y
. y = 0: 0 < x < 10
100
. y < 0: x = 2n–1 (0 < |x| < 1: – = n, x 
≠ 0)*,
  –10
100
 < – In |y| 
≤ 230.2585092
x
2
|x| < 10
50
¿x
≤ x < 10
100
x
–1
|x| < 10
100
 (x 
≠ 0)
1
x
1
x
1
x
1
x
θ = sin
-1
x, 
θ = tan
-1
x
θ = cos
-1
x
–90° 
≤ θ ≤ 90°
0° 
≤ θ ≤ 180°