Sharp WriteView EL-W531 Operation Manual

ENGLISH
SCIENTIFIC CALCULATOR
MODEL
OPERATION MANUAL
PRINTED IN CHINA / IMPRIMÉ EN CHINE / IMPRESO EN CHINA
07BGK (TINSE1278EHZZ)
INTRODUCTION
Thank you for purchasing the SHARP Scientifi c Calculator
Model EL-W531/W531G/W531H/W531HA/W535.
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 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.
• 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.
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 battery
• 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
Remove the hard case, holding it with your fi ngers in the
positions shown below.
DISPLAY
Symbol
EL-W531
EL-W531G
EL-W531H
EL-W531HA
• During actual use, not all symbols are displayed at the same
EL-W535
time.
• Only the symbols required for the usage under instruction are
shown in the display and calculation examples of this manual.
/ : Indicates that some contents are hidden in the
/
directions shown.
Appears when @ is pressed, indicating that the
2ndF:
functions shown in orange are enabled.
Indicates that H has been pressed and the
HYP:
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).
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 it off.
Key Notations Used in this Manual
In this manual, key operations are described as follows:
• 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 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)
Note: In certain calculation examples, where you see the o
symbol, the key operations and calculation results are
shown as they would appear in the Line editor.
Clearing the Entry and Memories
Operation
j
@ Z
Mode selection (b)
@ P 0*
@ P 1 0*
@ P 2 0*
RESET switch
○: Clear
*1 Press j x and then choose a memory to clear one
variable memory.
*2 Defi nable memory. See "Memory Calculations".
*3 Statistical data (entered data)
*4 See "Memory clear key".
*5 Cleared when changing between sub-modes in STAT mode.
Mantissa Exponent
x
e : @ "
To specify
To specify ln: i
To specify E: ; E
The Line editor
Entry A–F* 1 , D1–D4* 2 ANS STAT*
(Display) M, X, Y
○ × × ×
○ × × ○
○ × × ×
4 ○ × × ×
4 ○ ○ ○ ○
○ ○ ○ ○
4
○ ○ ○ ○
× : Retain
Memory clear key
Press @ P to display the menu.
• To initialize the display settings,
press 0. The parameters set
as follows:
• Angular unit: DEG
• Display notation: NORM1
Dot
• N-base: DEC
matrix
display
• To clear all variables and memories (A−F, M, X, Y, D1−D4, ANS,
and STAT) 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.
ENTERING, DISPLAYING, AND EDITING THE EQUATION
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
π
fractions, r, and
. When you press U, the display will cycle
through the following display styles:
• Mixed fractions (with or without
π
or without ) decimal numbers
• Proper fractions (with or without
• 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
π
that uses 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.
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,
3
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
×* 5
the cursor is directly over by pressing @ y.
×
Multi-line Playback Function
○
This calculator is equipped with a function to recall previous
○
equations and answers in NORMAL mode. 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).
1
π
) improper fractions (with
π
) decimal numbers
Entry value
DEG multiples of 15
⎯ 1 π
RAD multiples of
12
⎯ 50
GRAD multiples of
3
2