Sharp EL-W506, EL-W516, EL-W546 Owner Manual

EL W506 EL W516 EL W546

PRINTED IN CHINA / IMPRIMÉ EN CHINE / IMPRESO EN CHINA
07HGK (TINSE1307EHZZ)
INTRODUCTION
Thank you for purchasing the SHARP Scientifi c Calculator 
Model EL-W506/W516/W546.
About the calculation examples (including some formulas 
and tables), refer to the calculation example sheet. Refer to 
the number on the right of each title in the manual for use.
After reading this manual, store it in a convenient location for 
future reference.
Notes:
•  Some of the models described in this manual may not be 
available in some countries.
•  This product uses a period as a decimal point.
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 
excessively 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.
•  For the sake of your health, try not to use this product for 
long periods of time. If you need to use the product for an 
extended period, be sure to allow your eyes, hands, arms, 
and body adequate rest periods (about 10–15 minutes 
every hour).
If you experience any pain or fatigue while using this 
product, discontinue use immediately. If the discomfort 
continues, please consult a doctor.
•  This product, including accessories, may change due to 
upgrading 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:
•  When using for the fi rst time
•  After replacing the battery
•  To clear all memory contents
•  When an abnormal condition occurs and all keys are 
inoperative
  Do not use an object with a breakable or sharp tip. Note that 
pressing the RESET switch erases all data stored in memory.
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
Remove the hard case, holding it with your fi ngers in the 
positions shown below.
DISPLAY
 
 
 
 
Dot 
matrix 
display
Symbol
Mantissa
Exponent
•  During actual use, not all symbols are displayed at the same time.
•  Only the symbols required for the usage currently being explained 
are shown in the display and calculation examples in this manual.
/
/
Indicates that some contents are hidden in the 
directions shown.
2ndF: Appears 
when 
@ is pressed, indicating that the 
functions shown in orange are enabled.
HYP: Indicates 
that 
H has been pressed and the 
hyperbolic functions are enabled. If 
@ > is 
pressed, the symbols 2ndF HYP appear, indicating that 
inverse hyperbolic functions are enabled.
ALPHA: Indicates that 
;, x or t has been pressed, 
and entry (recall) of memory contents and recall of 
statistics can be performed.
DEG/RAD/GRAD: Indicates angular units.
BUSY:  Appears during the execution of a calculation.
W-VIEW: Indicates that the WriteView editor is selected.
M: 
Indicates that a numerical value is stored in the 
independent memory (M).
/
:  Indicates the mode of expression for results in CPLX mode.
ENG/SCI/FIX/N2/N1: Indicates the notation used to display a 
value and changes by SET UP menu. N1 is displayed 
on-screen as “NORM1”, and N2 as “NORM2”.
BEFORE USING THE CALCULATOR
When using for the fi rst time, press the RESET switch (on the 
back), with the tip of a ball-point pen or similar object.
Adjusting the Display Contrast
Press 
@ J 3, then + or & to adjust the 
contrast. Press j to exit.
Power On and Off
Press j to turn the calculator on. The data that was on-
screen when the power was turned off will appear on the display.
Press 
@ o to turn the calculator off.
Key Notations Used in this Manual
In this manual, key operations are described as follows:
To specify 
e
x
@ "
To specify ln:  i
To specify E: 
; E
•  Functions that are printed in orange above the key require 
@ to be pressed fi rst before the key. When you specify the 
memory, press 
; fi rst. Numbers for input values are not 
shown as keys, but as ordinary numbers.
•  Functions that are printed in gray adjacent to the keys are 
effective in specifi c modes.
•  The multiplication operator “
×” is differentiated from the letter 
“X” in this manual as follows:
To specify the multiplication operator: k
To specify the letter “X”: 
; X
The WriteView and Line Editors
This calculator has the following two editors in NORMAL mode: 
WriteView and Line. You can select between them in the SET UP 
menu.
The WriteView editor (default)
The Line editor
Notes:
•  The WriteView Editor is only available in NORMAL mode.
•  In certain calculation examples, where you see the 
symbol, the key operations and calculation results are shown 
as they would appear in the Line editor.
Clearing the Entry and Memories
Operation
Entry
(Display)
A–F,
M, X, Y*
1
F1–F4,
D1–D4*
2
ANS STAT*
3
matA–D*
4
L1–L4*
5
j
×
×
×
×
×
@ Z
×
×
Mode selection (b)
×
×
×
×*
6
@ P 0*
7
×
×
×
×
×
@ P 1 0*
7
@ P 2 0*
7, 
*
8
RESET switch*
8
○: Clear 
×
: Retain
*1 Press j x and then choose a memory to clear one 
variable memory.
*2  Formula memories and defi nable memories. See “Memory 
Calculations”.
*3  Statistical data (entered data)
*4  Matrix memories (matA, matB, matC, and matD)
*5  List memories (L1, L2, L3, and L4)
*6  Cleared when changing between sub-modes in STAT mode.
*7  See “Memory clear key”.
*8  The username you stored using the name display function will 
be cleared as well.
Memory clear key
Press 
@ P to display the menu.
•  To initialize the display settings, 
press 
0. The parameters are 
set as follows:
•  Angular unit: DEG
•  Display notation: NORM1
• N-base: DEC
•  To clear all variables and memories (A−F, M, X, Y, F1−F4, D1−D4, 
ANS, STAT, matA−D, and L1−L4) at once, press 
1 0.
•  To RESET the calculator, press 
2 0. The RESET 
operation will erase all data stored in memory and restore 
the calculator’s default settings. You can do the same thing by 
pressing the RESET switch on the back of the calculator.
Mode Selection
d
NORMAL mode: b 
0 (default)
Used to perform arithmetic operations and function calculations.
STAT mode: b 
1
Used to perform statistical operations.
DRILL mode: b 
2
Used to practice math and multiplication table drills.
CPLX mode: b 
3
Used to perform complex number calculations.
MATRIX mode: b 
4
Used to perform matrix calculations.
LIST mode: b 
5
Used to perform list calculations.
EQUATION mode: b 
6
Used to solve equations.
SET UP Menu
Press 
@ J to display the 
SET UP menu.
Press j to exit the SET UP menu.
Determination of the angular unit
The following three angular units (degrees, radians, and grads) 
can be specifi ed.
DEG (°): 
@ J 0 0 (default)
RAD (rad): 
@ J 0 1
GRAD (g): 
@ J 0 2
Selecting the display notation and decimal places 
1
Five display notation systems are used to display calculation 
results: Two settings of Floating point (NORM1 and NORM2), 
Fixed decimal point (FIX), Scientifi c notation (SCI), and 
Engineering notation (ENG).
• When 
@ J 1 0 (FIX) or @ J 1 2 
(ENG) is pressed, “TAB(0–9)?” will be displayed and the number 
of decimal places (TAB) can be set to any value between 0 and 9.
• When 
@ J 1 1 (SCI) is pressed, “SIG(0–9)?” will 
be displayed and the number of signifi cant digits can be set to 
any value between 0 and 9. Entering 0 will set a 10-digit display.
Setting the fl oating point number system in scientifi c notation
Two settings are used to display a fl oating-point number: NORM1 
(the default) and NORM2. A number is automatically displayed in 
scientifi c notation outside a preset range:
•  NORM1 (
@ J 1 3): 0.000000001 
 | x | 
 9,999,999,999
•  NORM2 (
@ J 1 4): 0.01 
 | x | 
 9,999,999,999
Selecting the editor
Two editors are available in NORMAL mode:
•  The WriteView editor (W-VIEW): 
@ J 2 0 (default)
•  The Line editor (LINE): 
@ J 2 1
Note: Any entries will be cleared when you change the editor.
Adjusting the display contrast
Press 
@ J 3, then + or & to adjust the contrast. 
Press j to exit.
Insert and overwrite entry methods
When using the Line editor, you can change the entry method 
from “INSERT” (the default) to “OVERWRITE”.
After you switch to the overwrite method (by pressing 
@ J 
4 1), the triangular cursor will change to a rectangular 
one, and the number or function underneath it will be overwritten 
as you make entries.
Name display function
You can save a username in this calculator. When you turn the 
power off, the saved username is displayed momentarily.
Up to 32 characters may be saved, split over two lines.
Entering and editing the username:
1. Press 
@ J 5. The 
editing screen appears with a 
fl ashing cursor.
2. Use 
u and d to scroll 
through the available characters. The following characters 
can be entered (listed in the order that they appear):
Letters (A to Z, uppercase only), numbers (0 to 9), slash (/), 
hyphen (-), colon (:), apostrophe (’), comma (,), period (.), 
and space ( ).
Press 
@ u to jump to “A”, and press @ d or 
j to jump to the space.
3. Pressing 
l or r moves the cursor to the left or right.
To modify a character, use 
l or r to move the 
cursor to the character, then select another character using 
u or d.
Press 
@ l or @ r to jump to the beginning of 
the fi rst line or the end of the second.
4.  Repeat steps 2 and 3 above to continue entering characters.
5. Press 
= to save.
Note: Press 
@ Z  in the editing screen to clear all the 
characters.
ENTERING, DISPLAYING, AND EDITING THE EQUATION 
2
The WriteView Editor
Entry and display
In the WriteView editor, you can 
enter and display fractions or certain 
functions as you would write them.
Notes:
•  The WriteView editor can only be used in NORMAL mode.
•  If the equation grows too large, it may extend off the edge of the 
display after you obtain the result. If you want to see the entire 
equation, press 
l or r to return to the editing screen.
Displaying calculation results
When possible, calculation results will be displayed using 
fractions, 
r, and 
π
. When you press 
U, the display will 
cycle through the following display styles:
•  Mixed fractions (with or without 
π
 improper fractions 
(with or without 
π
 decimal numbers
•  Proper fractions (with or without 
π
 decimal numbers
•  Irrational numbers (square roots, fractions made using 
square roots) 
 decimal numbers
Notes:
•  In the following cases, calculation results may be displayed 
using 
r:
•  Arithmetic operations and memory calculations
• Trigonometric calculations
•  In trigonometric calculations, 
when entering values such as 
those in the table to the right, 
results may be shown using 
r.
•  Calculation results may extend 
off the edges of the screen. You can see those parts by 
pressing 
l or r (depending on whether the left or 
right portion is hidden).
•  Improper/proper fractions will be converted to and displayed 
as decimal numbers if the number of digits used in their 
expression is greater than nine. In the case of mixed 
fractions, the maximum number of displayable digits 
(including integers) is eight.
•  If the number of digits in the denominator of a fractional 
result that uses 
π
 is greater than three, the result is 
converted to and displayed as a decimal number.
The Line Editor
Entry and display
In the Line editor, you can enter 
and display equations line by line.
Notes:
•  Up to three lines of text may be 
viewed on the screen at one time.
•  If the length of the equation exceeds three lines, parts of it 
may be hidden from view after calculation. If you want to see 
the rest of the equation, press 
l or r to return to the 
editing screen.
•  In the Line editor, calculation results are displayed in 
decimal form or line fraction notation if possible.
Editing the Equation
Just after obtaining an answer, pressing 
l brings you to 
the end of the equation and pressing 
r brings you to the 
beginning. Press 
l, r, u, or d to move the 
cursor. Press 
@ l or @ r to jump the cursor to 
the beginning or the end of the equation.
In the WriteView editor, you can use 
u and d to 
move the cursor up and down—between the numerator and 
denominator, for example.
Back space and delete key
To delete a number or function, move the cursor to the right of 
it, then press 
N. You can also delete a number or function 
that the cursor is directly over by pressing 
@ y.
The MATH Menu
Other functions may be available on this calculator besides 
those printed on the key pad. These functions are accessed 
using the MATH menu. The MATH menu has different contents 
for each mode.
Press N to display the MATH 
menu. For example, in NORMAL 
mode, you can call the functions 
shown on the right.
Notes:
• When 
the   or   symbols are displayed, you can use 
u or d to display any hidden menu items.
•  N does not function when entering values or items in 
STAT, MATRIX, LIST, or EQUATION modes, or into solver 
functions or simulation calculations.
The CATALOG Menu
Using the CATALOG menu, you can select functions and 
variables that are available for what you are doing in the 
currently selected mode. To display the CATALOG menu, 
press N 
0.
• Press 
u or d to move the cursor ( ) and press e 
to select.
• Press 
l or r to scroll up or down.
• Press 
@ u or @ d to jump to the fi rst or last item.
Note: You cannot bring up the CATALOG menu when entering 
values or items in STAT, MATRIX, LIST, or EQUATION 
modes, or into solver functions or simulation calculations.
Multi-line Playback Function 
3
This calculator is equipped with a function to recall previous 
equations and answers in NORMAL or CPLX modes. A 
maximum of 340 characters can be stored in memory. When 
the memory is full, stored equations will be deleted to make 
room, starting with the oldest.
Pressing 
u will display the previous equation. Further 
pressing 
u will display preceding equations (after returning 
to the previous equation, press 
d to view equations in 
order). In addition, 
@ u can be used to jump to the 
oldest equation, and 
@ d to jump to the newest one.
•  To edit an equation after recalling it, press 
l or r.
•  The multi-line memory will be cleared by the following 
operations:
@ Z , mode change, RESET, N-base conversion, 
angular unit conversion, editor change (
@ J 2 
0 or @ J 2 1), and memory clear (@ 
P 1 0).
•  Equations that have one result require an additional eleven 
characters’ worth of memory to store in order to hold the result.
•  In addition to the amount of memory needed to store an 
equation, the WriteView editor will require a certain amount 
for the sake of display.
•  Equations also include calculation ending instructions, such 
as “
=
”.
Priority Levels in Calculation
This calculator performs operations according to the following 
priority:
① Fractions (1
m
4, etc.) 
② 
, Engineering prefi xes 
③ Functions preceded by their argument (
x
1
x
2
, n!, etc.) 
④ 
y
x
x
r ⑤ Implied multiplication of a memory value (2Y, etc.) 
⑥ Functions followed by their argument (sin, cos, (
), etc.) 
⑦ Implied multiplication of a function (2sin 30, A
1
4
, etc.) 
⑧ nCr, 
nPr, 
cv 
⑨ 
×
÷
 
⑩ 
+
 
⑪ AND ⑫ OR, XOR, XNOR ⑬ 
=
M
+
, M
M, 
▶DEG, ▶RAD, ▶GRAD, DATA, 
r
θ
xy
, and 
other calculation ending instructions
•  If parentheses are used, parenthesized calculations have 
precedence over any other calculations.
SCIENTIFIC CALCULATIONS
• Press b 
0 to select NORMAL mode.
•  In each example, press j to clear the display fi rst. Unless 
otherwise specifi ed, calculation examples are performed in 
the WriteView editor (
@ J 2 0) with the default 
display settings (
@ P 0).
Arithmetic Operations 
4
•  The closing parenthesis 
) just before = or m 
may be omitted.
Constant Calculations 
5
•  In constant calculations, the addend becomes a constant. 
Subtraction and division are performed in the same manner. 
For multiplication, the multiplicand becomes a constant. 
•  In constant calculations, constants will be displayed as K.
•  Constant calculations can be perfomed in NORMAL or STAT 
modes.
Functions 
6
•  Refer to the calculation examples for each function.
•  In the Line editor, the following symbols are used:
• 
: to indicate an expression’s power. (m, 
@ ", 
@ Y)
• 
: to separate integers, numerators, and denominators. 
(W, 
@ k)
• When using 
@ O or @ W in the Line editor, 
values are entered in the following way:
• logn (base, value)
• abs value
Integral/Differential Functions 
7
Integral and differential calculations can be performed in 
NORMAL mode.
Note:  Since integral and differential calculations are performed 
based on the following equations, correct results may 
not be obtained, in certain rare cases, when performing 
special calculations that contain discontinuous points.
Integral calculation (Simpson’s rule):
( )
h
 
=
 
− a
N
a
 
 
x
 
 
b
=
 
2n
=
 
1
3
h{ f(a) 
+ 4{f(a + h) + f(a + 3h) + ... + f(a + (N − 1)h)}
+ 2{f(a + 2h) + f(a + 4h) + ... + f(a + (N − 2)h)} + f(b)}
Differential calculation:
 
f´(x) 
f(x 
dx
2
− f(x − 
dx
2
)
dx
Performing integral calculations
1. Press F.
2.  Specify the following parameters: range of integral (initial 
value (
a)
, end value (
b
)), function with variable 
x
, and number 
of subintervals (
n
).
You do not need to specify the number of subintervals. If the 
number of subintervals is not specifi ed, the default value of 
n
 = 100 will be used.
3. Press 
=.
Notes:
•  Parameters are entered in the following way:
WriteView editor:
a
b
function[, subintervals]
dx
Line editor:
(function, 
a
b
[, subintervals])
•  Integral calculations, depending on the integrands and 
subintervals included, require longer calculation time. During 
calculation, the BUSY symbol will be displayed. To cancel 
calculation, press j.
Note that there will be greater integral errors when there are 
large fl uctuations in the 
integral values during 
minute shifting of the 
integral range and for 
periodic functions, etc., 
where positive and 
negative integral values 
exist depending on the 
interval.
For the former case, divide integral intervals as small as 
possible. For the latter case, separate the positive and negative 
values. Following these tips will allow you to obtain results from 
calculations with greater accuracy and will also shorten the 
calculation time.
Performing differential calculations
1. Press 
@ G.
2.  Specify the following parameters: function with variable 
x
value of 
x
, and minute interval (
d
x
).
You do not need to specify the minute interval. If the minute 
interval is not specifi ed, it will automatically be set to 10
5
 
(while 
x
 
=
 0), or | 
× 
10
5
 (while 
x
 
 0).
3. Press 
=.
Note:  Parameters are entered in the following way:
WriteView editor:
d
(function)
dx
|
x
 
=
 value of 
x
[, minute interval]
Line editor:
d
/
dx
 (function, value of 
x
[, minute interval])
∑ Function 
8
The 
 function returns the cumulative sum of a given expression 
from an initial value to an end value in NORMAL mode.
Performing 
 calculations
1. Press 
@ I.
2.  Specify the following parameters: initial value, end value, 
function with variable 
x
, and increment (
n
).
You do not need to specify the increment. If the increment is 
not specifi ed, the default value of 
n
 = 1 will be used.
3. Press 
=.
Note:  Parameters are entered in the following way:
WriteView editor:
end value
Σ
(function[, increment])
x
 
= initial value
Line editor:
Σ
(function, initial value, end value[, increment])
Random Function
The random function has four settings. (This function cannot be 
selected while using the N-base function.) To generate further 
random numbers in succession, press 
e. Press j to exit.
Random numbers
A pseudo-random number, with three signifi cant digits from 0 up 
to 0.999, can be generated by pressing 
@ w 0 e.
Note:  In the WriteView editor, if the result is not 0 it can be 
shown as a fraction or decimal using 
U.
Random dice
To simulate a die-rolling, a random integer between 1 and 6 can 
be generated by pressing 
@ w 1 e.
Random coin
To simulate a coin fl ip, 0 (heads) or 1 (tails) can be randomly 
generated by pressing 
@ w 2 e.
Random integer
An integer between 0 and 99 can be generated randomly by 
pressing 
@ w 3 e.
Angular Unit Conversions 
9
Each time 
@ ] is pressed, the angular unit changes in 
sequence.
Memory Calculations 
10
Mode
ANS
M, F1–F4
A–F, X, Y
D1–D4
NORMAL
STAT
CPLX
×
MATRIX
LIST
○: Available 
×
: Unavailable
Temporary memories (A–F, X and Y)
Press x and a variable key to store a value in memory.
Press t and a variable key to recall the value from that memory. 
To place a variable in an equation, press 
; and a 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.
Press j x 
M 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.
When the calculation result is in matrix or list form, the full matrix 
or list is not stored into ANS memory. Only the value of the 
element covered by the cursor is stored.
Notes:
•  Calculation results from the functions indicated below are 
automatically stored in the X or Y memories replacing any 
existing values.
• 
r
θ
xy
: X memory (
r
 or 
x
), Y memory (
θ
 or 
y
)
• Two 
x
´ values from a quadratic regression calculation in 
STAT mode: X memory (1:), Y memory (2:)
• Use of t or 
; will recall the value stored in memory 
using up to 14 digits.
Formula memories (F1–F4)
You can store expressions in formula memories (F1–F4). Storing 
a new expression in a memory space will automatically replace 
any content that may already exist there.
Notes:
•  Expressions that are stored from the WriteView editor cannot 
be recalled from within the Line editor, and vice versa.
•  You can only recall expressions stored from the Line editor 
when entering values or items in STAT, MATRIX, LIST, or 
EQUATION modes, or into solver functions or simulation 
calculations.
•  Any recalled expressions will overwrite any expressions that 
are currently being entered.
•  You cannot store formulas in formula memories when entering 
values or items in STAT, MATRIX, LIST, or EQUATION modes, 
or into solver functions or simulation calculations.
EL-W506
EL-W516
EL-W546
SCIENTIFIC CALCULATOR
OPERATION MANUAL
MODEL
ENGLISH
Physical Constants and Metric Conversions 
16
Calculations using physical constants
To recall a constant, press K, then select a physical constant 
from the list. (Each item is labeled with a 2-digit number.)
•  To scroll up or down the list of constants, press 
(
l) or d (r).
Use 
@ u (l) or @ d (r) to jump to the 
fi rst or last page.
•  Enter the fi rst digit of the 2-digit item number to jump to the 
page containing the number that begins with that digit.
•  When you enter the second digit, the constant is displayed 
automatically according to the display and decimal 
placement settings.
•  Physical constants can be recalled in NORMAL (excluding 
N-base), STAT, CPLX, MATRIX, LIST, and EQUATION modes.
•  The following table lists the physical constants. See the 
calculation example sheet for physical constant symbols 
and units.
Note:  Physical constants and metric conversions are based 
on the 2006 CODATA recommended values, or on 
the 1995 Edition of the “Guide for the Use of the 
International System of Units (SI)” released by NIST 
(National Institute of Standards and Technology).
No.
Constant
No.
Constant
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Speed of light in vacuum 
Newtonian constant of 
gravitation
Standard acceleration of 
gravity
Electron mass
Proton mass
Neutron mass
Muon mass
Atomic mass unit-kilogram 
relationship
Elementary charge
Planck constant
Boltzmann constant
Magnetic constant
Electric constant
Classical electron radius
Fine-structure constant
Bohr radius
Rydberg constant
Magnetic fl ux quantum
Bohr magneton
Electron magnetic moment
Nuclear magneton
Proton magnetic moment
Neutron magnetic moment
Muon magnetic moment
Compton wavelength
Proton Compton wavelength
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Stefan-Boltzmann constant
Avogadro constant
Molar volume of ideal gas 
(273.15 K, 101.325 kPa)
Molar gas constant
Faraday constant 
Von Klitzing constant 
Electron charge to mass 
quotient 
Quantum of circulation 
Proton gyromagnetic ratio 
Josephson constant 
Electron volt 
Celsius Temperature
Astronomical unit
Parsec
Molar mass of carbon-12
Planck constant over 2 pi 
Hartree energy
Conductance quantum 
Inverse fi ne-structure constant 
Proton-electron mass ratio 
Molar mass constant
Neutron Compton wavelength 
First radiation constant 
Second radiation constant 
Characteristic impedance of 
vacuum 
Standard atmosphere
Metric conversions
Enter a value to be converted, then press 
@ L, and 
select a metric conversion by entering its 2-digit number.
•  The metric conversion list is used in the same manner as 
the list of physical constants.
•  Unit conversions can be performed in NORMAL (excluding 
N-base), STAT, MATRIX, LIST, and EQUATION modes.
•  The following table lists units used in metric conversion. 
See the calculation example sheet for the metric 
conversion reference table.
No.
Remarks
No.
Remarks
01
in 
: inch
23
fl  oz(US) : fl uid ounce (US)
02
cm 
: centimeter
24
mL 
: milliliter
03
ft 
: foot
25
fl  oz(UK) : fl uid ounce (UK)
04
: meter
26
mL 
: milliliter
05
yd : 
yard
27
cal
th
 : 
calorie
th
06
: meter
28
: joule
07
mi : 
mile
29
cal
15
 : 
calorie 
(15°C)
08
km 
: kilometer
30
: joule
09
n mi  
: nautical mile
31
cal
IT
 : 
calorie
IT
10
: meter
32
: joule
11
acre  
: acre*
1
33
hp : 
horsepower 
(UK)
12
m
2
 
: square meter
34
: watt
13
oz : 
ounce 
(avoirdupois)
35
ps  : 
horsepower (metric)
14
: gram
36
: watt
15
lb : 
pound 
(avoirdupois)
37
(kgf/cm
2
)
16
kg 
: kilogram
38
Pa 
: pascal
17
°F 
: degree Fahrenheit
39
atm 
: atmosphere
18
°C 
: degree Celsius
40
Pa 
: pascal
19
gal (US) : gallon (US)
41
(1 mmHg = 1 Torr)
20
: liter
42
Pa 
: pascal
21
gal (UK) : gallon (UK)
43
(kgf
·m)
22
L : 
liter
44
N
·m : 
newton 
meter
*1  based on US survey foot
Defi nable memories (D1–D4)
You can store functions or operations in defi nable memories 
(D1–D4).
•  To store a function or operation, press x, followed by a 
defi nable memory key (
I, J, K, or L), followed 
by the operation you want to store. Menu-related operations, 
such as 
@ J, cannot be stored. Press j to return to 
the previous display.
•  To call a stored function or operation, press the corresponding 
memory key. Calling a stored function will not work if the function 
that is called would be unusable in the current context.
•  Any functions or operations that are stored in a defi nable memory 
will be replaced when you save a new one into that memory.
•  You cannot store functions or operations in defi nable memories 
when entering values or items in STAT, MATRIX, LIST, or 
EQUATION modes, or into solver functions or simulation 
calculations.
Chain Calculations 
11 
The previous calculation result can be used in the subsequent 
calculation. However, it cannot be recalled after entering multiple 
instructions or when the calculation result is in matrix/list format.
Fraction Calculations 
12
Arithmetic operations and memory calculations can be performed 
using fractions. In NORMAL mode, conversion between a decimal 
number and a fraction can be performed by pressing 
U.
Notes:
•  Improper/proper fractions will be converted to and displayed as 
decimal numbers if the number of digits used in their expression 
is greater than nine. In the case of mixed fractions, the maximum 
number of displayable digits (including integers) is eight.
•  To convert a sexagesimal value to a fraction, fi rst convert it by 
pressing 
@ :.
Binary, Pental, Octal, Decimal, and Hexadecimal 
Operations (N-base) 
13 
Conversions can be performed between N-base numbers in 
NORMAL mode. The four basic arithmetic operations, calculations 
with parentheses, and memory calculations can also be performed, 
along with the logical operations AND, OR, NOT, NEG, XOR, and 
XNOR on binary, pental, octal, and hexadecimal numbers.
Conversion to each system is performed with the following keys:
@ z (“BIN” appears), @ r (“PEN” appears), 
@ g (“OCT” appears), @ h (“HEX” appears), 
@ / (“BIN”, “PEN”, “OCT”, and “HEX” disappear)
Note:  The hexadecimal numbers A–F are entered by pressing 
K
A
, m
B
, A
C
, l
D
, i
E
, and 
H
F
.
In the binary, pental, octal, and hexadecimal systems, fractional 
parts cannot be entered. When a decimal number having 
a fractional part is converted into a binary, pental, octal, or 
hexadecimal 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 
14 
You can convert between decimal and sexagesimal numbers, and 
from sexagesimal numbers to seconds or minutes. In addition, 
the four basic arithmetic operations and memory calculations 
can be performed using the sexagesimal system. Notation for 
sexagesimal is as follows:
Degree
Minute
Second
Coordinate Conversions 
15
•  Before performing a calculation, select the angular unit.
•  The calculation result is automatically stored in the X and Y 
memories (
r
 or 
x
 in X memory, and 
θ
 or 
y
 in Y memory).
•  The results of coordinate conversions will be displayed as 
decimal numbers even in the WriteView editor.
Rectangular coord.
Polar coord.
Entry value
DEG
multiples of 15
RAD
multiples of 
1
12
π
 
GRAD
multiples of 
50
3
y
x
b
x
x
x
x
a
0
1
3
2
y
a
b
x x
x
x
x
1
0
2
3