Sharp EL-546L, EL-556L User Manual
Machine Translated by Google
CONTENTS
INTRODUCTION .................................................................. 2 WHAT TO DO
WHEN ABNORMAL CONDITIONS OCCUR .................. 3
DISPLAY ............................................................................ 3 READ BEFORE
USING THE CALCULATOR .................................................. 5 INITIAL
SETTING ..................................................................
7 SCIENTIFIC CALCULATIONS .................................................. 11 Arithmetic
Calculations ............................................................ 11
Functions ............................................................................ 11 Random
Numbers .................................................................. 11 Angle Unit
Conversions .................................................. 12 Memory
Calculations .................................................. 12 Fraction
Calculations .................................................. 13 Binary, Octal, Decimal, and
Hexadecimal Number Systems (N-Base)................................................ 13
Time calculations - decimal and base
sexagesimal.................................................................. 14 Coordinate
transformations.................................................. 15 Calculations using
physical constants............................ 15 Conversion of numbers in the metric
system.................. 17 Modification function..................................................
18 COMPLEX NUMBERS CALCULATIONS............................ 19
SOLVING A SYSTEM OF LINEAR EQUATIONS
WITH THREE UNKNOWNS .................................................. 19
STATISTICAL CALCULATIONS ............................................ 21
ERRORS AND CALCULATION RANGE .................................. 24
SCIENTIFIC AND CALCULATOR FUNCTIONS ............ 25
BATTERY REPLACEMENT .................................................. 27
TECHNICAL DATA .................................................................. 29
CALCULATION EXAMPLES .................................................. 30
page 2
Scientific calculators EL-546L/EL-556L
• Always close the calculator in its case when not in use. To do
this, follow the steps above in reverse order.
PROCEDURE IN THE EVENT OF AN OCCURRENCE
ABNORMAL CONDITIONS
If the calculator is exposed to a strong external electric field or a
strong impact during operation, it may cause all buttons, including
the [ON/C] button, to stop working. In such cases,
case, press the RESET button on the back of the device.
Please note that after performing this operation, the contents of the
memory will be erased.
! The RESET button should only be used in the
following situations: • After
replacing the batteries; •
To clear all memory contents; • When abnormal
conditions occur or all buttons stop working.
If the calculator requires repair, it should only be repaired by a
SHARP dealer, a SHARP service center or a SHARP authorized
service center.
DISPLAY
Symbols
This device complies with the requirements of standard
89/336/EEC as amended by 93/68/EEC.
Scientific calculators EL-546L/EL-556L
page 1
INTRODUCTION
We are pleased that you have chosen the SHARP EL-546L or
SHARP EL-556L scientific calculator. This manual is intended to
help you become familiar with this device. Please keep it for future
reference.
Attention:
• The information provided in the following instructions applies to
both calculator models unless otherwise stated.
Terms of Use
To ensure trouble-free operation of the device, please adhere to
the following rules: 1. Do not carry the
calculator in the back pocket of your pants.
2. Do not expose the device to extreme temperatures.
3. Please protect the calculator from being dropped or subjected to
excessive pressure.
4. The casing of the device should only be cleaned with
with a dry, soft cloth.
Protective casing
The calculator comes with a case to protect the buttons and display
when not in use.
1. Press the back end of the calculator and then slide
device forward.
2. Turn the calculator to insert it into the case.
Equation
Mantissa
Exponent
(Not all messages and symbols are displayed during normal
operation.) If the displayed value is between ±0.000000001 and
±9999999999, only the mantissa is displayed. Otherwise, the
display automatically switches to scientific notation. You can select
the notation system depending on the type of calculation you are
performing.
Scientific calculators EL-546L/EL-556L
page 3
The entered equation is displayed in the center of the display.
The meaning of symbols and messages is given below.
appearing at the top of the display.
"#: Appears on the display if the entire equation or result cannot
be displayed.
:
ÿ
xy r
2ndF:
Indicates the type of the result in complex number
calculations.
This message appears on the display after pressing
the second function button [2ndF].
This means that the second function of the button,
shown in yellow on the keyboard, is activated.
HYP:
Hyperbolic function message appears on the display
after pressing the [hyp] button. After pressing the [2ndF]
[hyp]
buttons, the display will show the
on
message "2ndF HYP"
indicating that inverse hyperbolic functions are active.
ALPHA
:
A message indicating that it may be
an operation to enter and display the
contents of memory or an operation to display statistical
FIX SCI ENG:
DEG RAD HILL:
data was performed.
Notation system messages.
Angle unit messages.
ALGB : This message appears on the display after
M:
switching on the substitution mode.
Message indicating that a numeric value is stored in
independent memory.
ÿ: ? :
ÿ :
and :
Indicates the selected operating mode.
Indicates that the calculator expects a numeric value to
be entered in substitution mode.
Message indicating that an angle is being displayed
(as a result of a complex number calculation)
A message indicating that a part is being displayed
imaginary of a complex number.
on
Machine Translated by Google
page 4
Scientific calculators EL-546L/EL-556L
READ BEFORE USING
CALCULATOR
The calculations in the calculator are performed based on logic
algebraic.
The algebraic logic system allows for easy entry of equations, i.e., as they
appear in reality. For example, in
To perform the operation sin 30 + cos 45, press
successively buttons [sin]30[+][cos]45[=]. Calculations - from the simplest to
the most complicated equations - can
be carried out in an easy-to-understand manner. Each expression can be up
to 159 characters long. • When using the calculator for the first
time, press the RESET button on the back of the device.
Button notation used in the manual
The following button notation is used in this manual.
ex E
ln
x
[ln]
[2ndF][e
]
Logarithm button
x
Ex function button
Hexadecimal E button
[E]
Memory Calculation Button
[X]
ÿ
Exp
[Exp]
[2ndF] [ÿ]
Exponent button
Pi number button
As shown above, if you use the second function after the [2ndF] button, only
the second function will be shown in this manual. This will be recorded as
pressing the [2ndF][2nd function] buttons, meaning that you must first press
the [2ndF] button and then the desired second function button. The first
function (or digit) that is shown on the button will not be shown in this case.
The entered digits are not shown as buttons in this manual, but as digits.
Turning the power on and off
To turn on the power, press the [ON/C] button.
To turn off the power, press the [2ndF][OFF] buttons.
Scientific calculators EL-546L/EL-556L
page 5
Ways to delete numbers or operations
There are three methods for deleting numbers or operations:
[ON/C]
Pressing the
formulas.
button deletes all values, calculation functions and
this
(This does not apply to
the coefficients of a system of linear equations with three
unknowns, statistical data, and the contents of memory in
standard operation.)
[2ndF][CA
Pressing
these buttons will clear all values except
]
contents of all independent memories in standard
operating mode. It also causes
deleting the contents of statistical memories.
[DEL]
Pressing the
this
button while entering a number deletes the last
displayed digit. Pressing this button in edit mode deletes one
digit, function, etc., where the cursor is located.
Operation Priorities
The calculations are performed in the following order: 1. ÿ, display the contents of memory 2. ÿ 2
3. Functions preceded by an argument (x , x Yx
x
4. Y
,
-1
, n!, etc.)
5. Multiplying the value stored in memory (2A etc.)
6. Functions followed by an argument (sin, cos, etc.)
7. Multiplication of functions (2sin30 etc.)
8. nCr, nPr 9.
×, ÷
10. +, -
11. AND
12. OR, XOR, XNOR
13. =, M+, M-, ÿM, DEG, RAD, GRAD, ÿBIN, ÿOCT, ÿHEX, ÿDEC, xí, yí,
DATA, CD, ÿrÿ, ÿxy, % and other operations to complete calculations.
Machine Translated by Google
• When parentheses are used, the expressions enclosed in parentheses take
precedence over other calculations.
p. 6
Scientific calculators EL-546L/EL-556L
Hanging operation
Operations that cannot be performed immediately due to the order of operations
or the use of parentheses must be temporarily suspended (suspend operation).
The calculator allows you to enter and store up to 16 operations and up to 8
numerical values (8 values in the standard mode and 4 values in the
complex number calculations, 3-VLE mode and statistical calculations mode).
INITIAL SETTING
Selecting the operating mode
The calculator can operate in one of the 4 operating modes described below.
To select the operating mode, press
[MODE] button and then enter the number corresponding to
selected operating mode.
[0]
Standard operating mode:
This mode is used when performing arithmetic operations, arithmetic
substitution, and calculations involving functions. In the standard
operating mode, the "ÿ" indicator appears under the string "0:NORMAL".
[1]
Complex Number Calculation Mode: This mode
is used when performing complex number calculations.
on complex numbers. In this mode, the "ÿ" indicator appears under
the string "1:CPLX".
[2]
3-VLE mode:
This mode is used when solving a system of linear equations with
three unknowns. In this mode, the "ÿ" indicator appears under the
"2:3-VLE" label.
[3]
Statistical Calculation Mode: This
mode is used to perform statistical calculations.
statistics. In the statistical calculation mode, the "ÿ" indicator appears
under the text "3:STAT".
Choosing a Notation System
The calculator allows you to choose one of four systems
notation of displayed values.
FI
Fixed Decimal Place System: The displayed number has a user-defined
X
number of
decimal places.
number of decimal places. If selected
this is the way of presenting numbers, the display shows the message
FIX.
Scientific calculators EL-546L/EL-556L
page 7
the displayed value will be rounded according to the setting.
To determine the number of decimal places
should be used when the calculation result is displayed or after deleting the
displayed values using
[ON/C] button, press the [2ndF][TAB] buttons, and then press the number button
corresponding to the desired number of decimal places.
p. 8
Scientific calculators EL-546L/EL-556L
Determining the units of angle measurement
The calculator allows you to set one of three angle measurement units:
Degrees (°)
Radians (rad) The display shows RAD
Grady (g)
To specify the angle measurement units, press
[DRG] button. Each press of the [DRG] button selects the angle measurement
units in the sequence DEG ÿ RAD ÿ GRAD ÿ DEG etc.
Note: For the examples later in this manual, make sure that none of the
ÿ, FIX, SCI, ENG - see section "Choosing the notation system"
BIN, OCT, HEX - see point Ñ Number systems: binary, octal, decimal,
Edit equation
The calculator allows you to edit the equation not only while entering it, but also
after the result has been determined.
[Editing an equation while entering an equation] • Press the [ ]
button or the [ button to move the cursor; If you need to delete
a digit, move the cursor to
•
the position under the digit you want to delete, and then press the [DEL]
button; This operation deletes the digit or character where the cursor is
positioned.
•
If you need to insert a digit between existing digits, move the cursor so
that it is in the next field after the digit you want to insert.
new digit inserted, and then enter the digit.
[Editing the equation after calculating the result] •
Press the [2ndF][ ] buttons to return to the
equations;
• Edit in the same way as described
The display shows DEG
A message appears on the display
HAIL
following messages are displayed:
hexadecimal
] in order to
above.
SC
Scientific notation: The number
AND
is displayed in scientific notation. If this format is selected, the display
shows SCI. The mantissa of the value is displayed with the specified
number of decimal places.
ENG Engineering notation system: The
number is displayed in engineering notation. If this way of presenting
numbers is selected, the display shows ENG. The mantissa of the value
is displayed with a specified number of places after the decimal point. In
addition to the mantissa, the
is an exponent that is a multiple of 3.
Floating point system:
The number is displayed with a variable number of decimal places. If this
data presentation is selected, no message is shown on the display.
Values outside the range 0.000000001 ÿ ÿxÿ ÿ
9999999999 are displayed in scientific notation.
In order to change the notation system, you must do so when
the calculation result is displayed or after clearing the displayed values with the
[ON/C] button, press the [2ndF][FSE] buttons. Each press of the buttons
[2ndF][FSE] selects one of the notation systems in the sequence: FIX ÿ
SCI ÿ ENG ÿ Floating point system ÿ FIX etc.
Determining the number of decimal places
If the fixed decimal notation system, scientific notation system, or engineering
notation system is selected (FIX, SCI, or ENG is displayed), you can set a fixed
number of decimal places in the range 0 to 9. After setting the number of
decimal places
Scientific calculators EL-546L/EL-556L
Arithmetic substitution
If it is necessary to evaluate the same equation multiple times for
different values, e.g. when drawing the curve y=2x+1 or finding
solutions
2
the equation 2x + 2y = 14, you only need to enter the equation
once and then enter different values of the equation
variables. •
The following variables can be used: AD, M, X and Y
• It is not possible to use the following functions: RANDOM and
calculation termination commands.
Note: the expression must contain at least one variable.
Example: Enter expression 2A and 2B and then find
such a value of variable B that, with the known value of
A, the result of the equation is 14.
A 1
2
3 4 5
6
B
Buttons pressed
1 [MODE] 0 2
2 [2ndF][ALPHA][A][+] 2
[2ndF][ALPHA][A]
3
[2ndF][ALGB] 1
4 [=] 4
5
[=]
[2ndF][ALGB] 6
7 [=] 6
Display Notes
2A+2B_
2A+2B_ ?
2A+2B_
?
2A+2B_
2A+2B_
2A+2B_
?
10.
0.
0.
*
1
1.
*
2
4.
*
3
*
4
1.
*
5
6.
page 9
Machine Translated by Google
:
2A+2B_
14.
*
6
8 [=]
9
:
*1 The calculator asks you to enter the value of variable A when
"?" is displayed and variable A flashes. In this case, "1" should be entered.
When the equation exceeds 12 characters and the "?" is displayed, you
can check it by pressing [ *2 The "?" is displayed and variable B flashes,
].
which means that the calculator asks for a value for
], [
variable B.
In this case you must guess the value of B by entering "4".
page 10
Scientific calculators EL-546L/EL-556L
*3 The result of the equation is different from "14", which means that the value
B is not correct.
*4 Redisplay the equation. The calculator displays
the number last entered as the variable value.
*5 Since it is not necessary to change the value of variable A, simply press the
[=] button. The calculator then moves on to variable B. In this case, guess
the value of B by entering "6".
*6 Redisplay the equation and try to find
solution for a different value of variable B.
Answers: A=1 B=6, A=2 B=5, A=3 B=4
A=4 B=3, A=5 B=2, A=6 B=1
SCIENTIFIC CALCULATIONS
•
If one of the FIX messages appears on the display,
SCI or ENG, it must be deleted by pressing the [2ndF][FSE] buttons (see
the section "Selecting the notation system").
Arithmetic calculations (see table on page 30)
Functions (see table on pages 31 and 32)
Before performing calculations using the function, press the [ON/C] button. •
Before starting the calculations,
select the angle measurement unit (see section “Selecting the Angle
Measurement Units”).
Random numbers
Pressing the [2ndF][RANDOM][=] buttons generates a three-digit pseudorandom number. To generate the next random number, press the [=] button.
This operation can be performed either in
in standard operating mode and in calculation mode
statistical. •
Random numbers use Y memory. Each random number is generated from a
value stored in Y memory (a series of pseudo-random numbers).
• Pressing the 0 [STO][M] buttons erases the contents of the independent memory
(enters a zero value into it).
Temporary memories (A - D, X, Y)
Temporary memories A - D, X and Y are available in standard
operation mode.
[STO][A] - [D], [X], [Y]: Enter
the displayed value into the specified temporary memory (A - D, X, Y).
[RCL][A] - [D], [X], [Y] or [2ndF][ALPHA][A] - [D], [X], [Y] [=]:
Displays the value stored in temporary memory (defined by pressing the
appropriate letter button). • The contents of the temporary memory are cleared
when the operating mode changes or when a zero value is entered.
Last Result Memory Last Result
Memory is available in the standard
operating mode and in statistical calculation mode and in
calculations on complex numbers.
page 12
Scientific calculators EL-546L/EL-556L
The calculation result obtained after pressing the [=] button or another button
ending the calculation is automatically entered into the last result memory. [2ndF]
[ANS]:
Displaying the contents of the last result memory. • The contents
of the last result memory are
deleted when
the operating mode is changed.
Attention:
The results of calculations involving the functions given below are
automatically entered into memory X or memory Y.
For this reason, care should be taken when using these functions.
attention to memory X and memory Y.
• Random numbers •
ÿrÿ ÿxy
Calculations involving fractions (see table on page 33)
b
[a / ]:
c
This button is used to enter fractions or to convert numbers. [2ndF][d/c]:
Pressing these buttons converts
numbers.
Memory Y
Memory X, Memory Y
• Numbers with a decimal or exponential form cannot be entered as a fraction.
• In all cases, the integer part, numerator
and the denominator, up to 10 digits in total can be entered (including the
( ÿ ) symbol).
•
If the number of digits to be displayed is greater than 10, the number is
converted and displayed in decimal format.
[El-546L calculator only] • To
generate a new series of pseudo-random numbers, press the [ON/C][STO][Y]
buttons to clear the contents of the Y memory.
Scientific calculators EL-546L/EL-556L
page 11
Changing the units of measurement of angles (see table on page 32)
The units of angle measurement can be changed in the following sequence:
degrees ÿ radians ÿ grads ÿ degrees etc.
Memory-intensive calculations (see table on pages 32 and 33)
The calculator has one independent memory (M), one memory
last result and six temporary memories (A - D, X, Y).
Independent memory (M)
Independent memory is available in standard operating mode.
[STO][M]:
Erases the contents of independent memory and enters the displayed
value into it.
[RCL][M] or [2ndF][ALPHA][M][=]: Displays
the value stored in independent memory.
[M+]:
Add the
displayed value to the value stored in independent memory. [2ndF]
[M-]: Subtract the displayed value stored in
independent
memory.
values
From
Number systems: binary, octal, decimal and hexadecimal (N-Base).
(see table on pages 33 and 34)
The calculator allows you to convert numbers in the following number
systems: binary, octal, decimal and hexadecimal, as well as perform four basic
arithmetic operations in these systems,
calculations using brackets and calculations using memory.
In addition, it is possible to perform logical operations AND, OR, NOT, NEG,
XOR and XNOR on binary, octal and hexadecimal numbers.
Scientific calculators EL-546L/EL-556L
page 13
Converting a number to another number system is done as follows:
[2ndF][#BIN] Converting a number to the binary system.
The display shows Ñbî. [2ndF][#OCT] Converting the
number to the octal system.
display shows
[2ndF][#DEC] Converting a number to the decimal system.
The display shows Ñoî. [2ndF][#HEX] Converting the number system to hexadecimal. The
message ÑHî.
The other number system message disappears from the
display.
By pressing one of the button combinations described above, the displayed
number is converted to the selected number system.
Note: Entering numbers A - F in hexadecimal system
is done by pressing the buttons:
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