INTRODUCTION
After reading this manual, store it in a convenient location
for future reference.
Operational Notes
To ensure trouble-free operation, please observe the fol-
lowing 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.
♦
Press the RESET switch 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 facil-
ity, or SHARP repair service where available.
DISPLAY
Symbol
Mantissa
Exponent
(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
scientific notation. The display mode can be changed ac-
cording to the purpose of the calculation.
/
:
Appears when the entire equation cannot be
displayed. Press
<
/
>
to see the remain-
ing (hidden) section.
2ndF
:
Appears when
@
is pressed, indicating that
the functions shown in yellow are enable.
HYP
:
Indicates that
h
has been pressed and the
hyperbolic functions are enabled. If
@
Á
are pressed, the symbols “
2ndF HYP
” appear,
indicating that inverse hyperbolic functions are
enabled.
A
:
Indicates that
@
K
or
O
(
R
) has
been pressed, and entry (recall) of memory con-
tents and recall of statistics can be performed.
FIX/SCI/ENG:
Indicates the notation used to display a
value and changes each time
@
f
are
pressed.
DEG/RAD/GRAD:
Indicates angular units and changes
each time
G
is pressed.
STAT
:
Appears when statistics mode is selected.
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:
x
2
To specify
x
2
:
@
L
E
To specify E
x
p:
E
Functions that are printed in yellow above the key require
@
to be pressed first before the key. Numbers are not
shown as keys, but as ordinary numbers.
Power On and Off
Press
N
to turn the calculator on, and
@F
to
turn it off.
Clearing Methods
There are three clearing methods as follows:
Clearing
Entry
M*
1
X,Y*
2
operation
(Display)
STAT, ANS
N
×
×
@c
×
RESET
: Clear
×
: Retain
*
1
Independent memory M.
*
2
Temporary memories X and Y, statistical data, and last
answer memory.
See page 9 for additional reference.
Editing the Equation
•
Press
<
or
>
to move the cursor. You can also
return to the equation after getting an answer by press-
ing
>
(
<
).
•
If you need to delete a number, move the cursor to the
number you wish to delete then press
d
.
The number under the cursor will be deleted.
•
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.
Priority Levels in Calculation
This calculator performs operations according to the fol-
lowing priority:
Functions preceded by their argument (x
-1
, x
2
, n!, etc.)
Y
x
,
x
¿
Implied multiplication of a memory value (2Y,
etc.)
Functions followed by their argument (sin, cos,
etc.)
Implied multiplication of a function (2sin30, etc.)
n
C
r
,
n
P
r
×
,
÷
+, –
=, M+, M–,
⇒
M,
|
DEG,
|
RAD,
|
GRAD, DATA, CD,
→
r
θ
,
→
xy and other calcula-
tion ending instruction
•
If parentheses are used, parenthesized calculations have
precedence over any other calculations.
INITIAL SETUP
Mode Selection
Normal mode:
@m0
Used to perform arithmetic operations and function calcu-
lations.
Statistics mode:
@m1
Used to perform statistical calculations.
When executing mode selection, temporary memories, sta-
tistical data and last answer memory will be cleared even
when reselecting the same mode.
Selecting the Display Notation and Decimal
Places
The calculator has four display notation systems for dis-
playing calculation results. When FIX, SCI, or ENG sym-
bol 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.
100000÷3=
[Floating point]
N
100000
/
3
=
33333.33333
→
[Fixed decimal point]
@f
33333.33333
[TAB set to 2]
@i
2
33333.33
→
[SCIentific notation]
@f
3.33
×
10
4
→
[ENGineering notation]
@f
33.33
×
10
3
→
[Floating point]
@f
33333.33333
•
If the value for floating point system does not fit in the
following range, the calculator will display the result
using scientific notation system:
0.000000001
≤
|
x
|
≤
9999999999
Page
INTRODUCTION
.......................................................
2
DISPLAY
....................................................................
2
BEFORE USING THE CALCULATOR
......................
3
INITIAL SETUP
..........................................................
5
SCIENTIFIC CALCULATIONS
..................................
6
Arithmetic Operations/Constant Calculations
....
6
Functions
............................................................
7
Random Numbers
..............................................
8
Angular Unit Conversions
..................................
8
Memory Calculations
..........................................
9
Chain Calculations
...........................................
10
Fraction Calculations
........................................
11
Time, Decimal and Sexagesimal
Calculations
..................................................
11
Coordinate Conversions
...................................
12
STATISTICAL CALCULATIONS
.............................
12
ERROR AND CALCULATION RANGES
................
14
BATTERY REPLACEMENT
....................................
17
SPECIFICATIONS
...................................................
18
DEG
(
°
)
GRAD
(g)
RAD
Press
G
(Radians)
SCIENTIFIC CALCULATIONS
•
Press
@
m
0
to select the normal mode.
•
In each example, press
N
to clear the display.
•
If the FIX, SCI, or ENG indicator is displayed, clear the
indicator by pressing
@
f
. (See page 5)
Arithmetic Operations/Constant Calculations
45+285
÷
3=
N
45
+
285
/
3
=
140.
18+6
=
(
18
+
6
)/
15–8
(
1 5
-
8
=
*
1
3.428571429
42
×
(–5)+120=
42
*–
5
+
120
=
–90.
(5
×
10
3
)
÷
(4
×
10
–3
)=
5
E
3
/
4
E
–
3
=
1250000.
34+57=
34
+
57
=
*
2
91.
45+57=
45
=
102.
68
×
25=
68
*
25
=
*
3
1700.
68
×
40=
40
=
2720.
*
1
The closing parenthesis
)
just before
=
or
;
may be omitted.
*
2
The addend becomes a constant. Subtraction and divi-
sion are performed in the same manner.
*
3
The multiplicand becomes a constant.
sin60[°]=
Ns
60
=
0.866025403
Gu
(V/
4
cos–[rad]=
)=
0.707106781
tan
–1
1=[g]
G@T
1
=
50.
G
•
The results of inverse trigonometric functions are dis-
played within the following range:
••••
– + – =
6
@•+
7
@
•=
0.309523809
8
–2
– 3
4
×
5
2
=
8
™
–
2
-
3
™
4
*
5
@L=
–2024.984375
(12
3
)
–
=
12
™
3
™
4
@•=
6.447419591
√
49
–
4
√
81
=
@∕
49
-
4
@$
81
=
4.
4! =
4
@!=
24.
10
P
3
=
10
@q
3
=
720.
5
C
2
=
5
@Q
2
=
10.
500
×
25%=
500
*
25
@%
125.
120÷400=?%
120
/
400
@%
30.
500+(500
×
25%)=
500
+
25
@%
625.
400–(400
×
30%)=
400
-
30
@%
280.
[Temporary memories (X and Y)]
A stored value can be recalled as a value or variable for
the use in equations.
•
In case you store an infinite decimal in the memory,
recall it as a variable to obtain accurate answers.
Ex.)
1
/
3
O
Y
(0.3333...is stored to Y)
3
*
R
Y
=
0.999999999
3
*
@
K
Y
=
1.
[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.
[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
automatically stored in memories X or Y. For this reason,
when using these functions, be careful with the use of
memories X and Y.
•
Random numbers
..................
Y memory
•
→
r
θ
,
→
xy
...............................
X memory, Y memory
Temporary memories and last answer memory are cleared
even when the same mode is reselected.
See page 4 for additional reference.
N
8
*
2
OM
16.
24÷(8
×
2)=
24
/RM=
1.5
(8
×
2)
×
5=
RM*
5
=
80.
NOM
0.
$150
×
3:M
1
150
*
3
;
450.
+)$250:M
2
=M
1
+250
250
;
250.
–)M
2
×
5%:Discount
R
M
*
5
@
%
35.
Total=M
@:RM
665.
$1= ¥140
140
OY
140.
¥33,775=$?
33775
/RY=
241.25
$2,750=¥?
2750
*RY=
385000.
r = 3cm
3
OY
3.
π
r
2
= ?
V@K
*
(r
→
Y)
Y@L=
28.27433388
24
/(
4
+
6
)
24
= 2.4...(A)
=
2.4
4+6
3
*?+
60
/
3
×
(A)+60÷(A)=
?=
32.2
*
Entry of the multiplication procedure is omitted between
"
π
" and a variable.
Determination of the Angular Unit
In this calculator, the following three angular units can be
specified.
Random Numbers
A pseudo-random number with three significant digits can
be generated by pressing
@
`=
. To generate
the next random number, press
=
. You can perform
this function in the normal and statistics modes.
•
Random numbers use memory Y. Each random number
is generated on the basis of the value stored in memory
Y (pseudo-random number series).
Angular Unit Conversions
90°
→
[rad]
N
90
@g
1.570796327
→
[g]
@g
100.
→
[°]
@g
90.
••••
– 1 –
– 6 –
– 2 –
– 3 –
– 4 –
– 5 –
– 7 –
– 8 –
– 9 –
– 10 –
EL-510R
SCIENTIFIC CALCULATOR
OPERATION MANUAL
MODEL
98KUP (TINSE0272THZZ)
PRINTED IN CHINA
01 11
20
22
23
30
π
4
θ
= sin
–1
x
,
θ
= tan
–1
x
θ
= cos
–1
x
DEG
–90
≤
θ
≤
90
0
≤
θ
≤
180
RAD
–
—
≤
θ
≤
—
0
≤
θ
≤
π
GRAD
–100
≤
θ
≤
100
0
≤
θ
≤
200
π
2
π
2
Chain Calculations
This calculator allows the preivious calculation result to be
used in the following calculation.
6+4=ANS
N
6
+
4
=
10.
ANS+5
+
5
=
15.
44+37=ANS
44
+
37
=
81.
√
ANS
=
@∕=
9.
The previous calculation result will not be recalled after
entering multiple instructions.
1
4
(cosh 1.5 +
N(hu
1.5
sinh 1.5)
2
=
+hs
1.5
)
@L=
20.08553692
@Ht(
5
tanh
–1
– =
/
7
)=
0.895879734
ln 20 =
@I
20
=
2.995732274
log 50 =
@l
50
=
1.698970004
e
3
=
@e
3
=
20.08553692
10
1.7
=
@¡
1.7
=
50.11872336
••••
1
7
1
6
5
7
Memory Calculations
This calculator has two temporary memories (X and Y),
one independent memory (M) and one last answer
memory. Independent memory and temporary memories
are only available in the normal mode.
••••
sin
–1
0.8 = [°]
@S
0.8
=
53.13010235
→
[rad]
@g
0.927295218
→
[g]
@g
59.03344706
→
[°]
@g
53.13010235
When performing calculations using constants, constants
will be displayed as K.
Functions
•
Before starting calculations, specify the angular unit.
(See page 6)
ENGLISH
1
2
