Manual de instruções Sharp EL-W535XBSL

Sharp EL-W535XBSL
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    07BGK (TINSE1278EHZZ)
    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.
    • 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.
    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
    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.
    Mantissa Exponent
    • During actual use, not all symbols are displayed at the same
    • 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.
    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).
    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”.
    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:
    To specify e
    @ "
    To specify ln:
    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 ; 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
    The WriteView editor (default) The Line editor
    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 Entry
    M, X, Y
    j ○××××
    @ Z
    Mode selection (b) ○××× ×*
    @ P 0*
    @ P 1 0*
    @ P 2 0*
    RESET switch
    : Clear
    : Retain
    *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.
    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
    • N-base: DEC
    • 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.
    The WriteView Editor
    Entry and display
    In the WriteView editor, you can
    enter and display fractions or certain
    functions as you would write them.
    • 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
    • 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
    • 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.
    • 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
    • In the Line editor, calculation results are displayed in decimal
    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.
    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
    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
    Fractions (1
    4, etc.) Functions preceded by their argument
    , x
    , n!, etc.) y
    r Implied multiplication of a memory
    value (2Y, etc.) Functions followed by their argument (sin, cos,
    etc.) Implied multiplication of a function (2sin 30, A
    , etc.)
    nCr, nPr
    ×, ÷ +, AND OR, XOR, XNOR =,
    +, M, M, DEG, RAD, GRAD, DATA, CD, 󱚴rθ, 󱚴
    and other calculation ending instructions
    • If parentheses are used, parenthesized calculations have
    precedence over any other calculations.
    INITIAL SET UPMode Selection
    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.
    SET UP Menu
    Press J to display the SET UP
    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
    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
    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.
    • 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 with the default display settings (@ P
    Arithmetic Operations
    The closing parenthesis ) just before = or m may
    be omitted.
    Constant Calculations
    • 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.
    • 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
    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
    Note: In the WriteView editor, the result will be a fraction or 0.
    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
    Each time @ ] is pressed, the angular unit changes in
    Memory Calculations
    Memory calculations can be performed in NORMAL and STAT
    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.
    • Calculation results from the functions indicated below are
    automatically stored in the X or Y memories replacing any
    existing values.
    rθ, 󱚴
    : 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.
    Defi nable memories (D1–D4)
    You can store functions or operations in defi nable memories
    • 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 do
    nothing 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
    • When displaying and correcting a data set in STAT mode,
    you cannot store functions or operations in defi nable
    Chain Calculations
    The previous calculation result can be used in the subsequent
    calculation. However, it cannot be recalled after entering
    multiple instructions.
    Fraction Calculations
    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.
    • 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)
    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
    , *
    , A
    , l
    , i
    , and H
    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
    Conversion between decimal and sexagesimal numbers can be
    performed. In addition, the four basic arithmetic operations and
    memory calculations can be performed using the sexagesimal
    system. Notation for sexagesimal is as follows:
    Coordinate Conversions
    • 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.
    Modify Function
    Decimal calculation results are internally obtained in scientifi c
    notation, with up to 14 digits in the mantissa. However, since
    calculation results are displayed in the form designated by the
    display notation and the number of decimal places indicated,
    the internal calculation result may differ from that shown in the
    display. By using the modify function (@ n), the internal
    value is converted to match that of the display, so that the
    displayed value can be used without change in subsequent
    • When using the WriteView editor, if the calculation result is
    displayed using fractions or irrational numbers, press U
    to convert it to decimal form fi rst.
    Statistical calculations can be performed in STAT mode.
    There are eight sub-modes within STAT mode. Press b
    1, then press the number key that corresponds to your
    0 (S#a# 0 [SD]): Single-variable statistics
    1 (S#a# 1 [LINE]): Linear regression
    2 (S#a# 2 [QUAD]): Quadratic regression
    3 (S#a# 3 [E_EXP]): Euler exponential regression
    4 (S#a# 4 [LOG]): Logarithmic regression
    5 (S#a# 5 [POWER]): Power regression
    6 (S#a# 6 [INV]): Inverse regression
    7 (S#a# 7 [G_EXP]): General exponential regression
    Statistical Calculations and Variables
    The following statistics can be obtained for each statistical
    calculation (refer to the table below):
    Single-variable statistical calculation
    Statistics of ①.
    Linear regression calculation
    Statistics of and . In addition, the estimate of
    y for a
    x (estimate y´) and the estimate of x for a given y
    Quadratic regression calculation
    Statistics of and , and coeffi cients
    a, b, c in the quadratic
    regression formula (
    y = a + bx + cx
    ). (For quadratic
    regression calculations, no correlation coeffi cient (
    r) can be
    obtained.) When there are two
    x´ values, each value will be
    displayed with “1:” or “2:”, and stored separately in the X and
    Y memories.
    Euler exponential regression, logarithmic regression,
    power regression, inverse regression, and general
    exponential regression calculations
    Statistics of and . In addition, the estimate of
    y for a given
    x and the estimate of x for a given y. (Since the calculator
    converts each formula into a linear regression formula before
    actual calculation takes place, it obtains all statistics, except
    coeffi cients
    a and b, from converted data rather than entered
    Mean of samples (x data)
    sx Sample standard deviation (x data)
    σx Population standard deviation (x data)
    Number of samples
    Σx Sum of samples (x data)
    Sum of squares of samples (x data)
    Mean of samples (
    y data)sy
    Sample standard deviation (y data)
    Population standard deviation (y data)
    Sum of samples (y data)
    Sum of squares of samples (y data)
    Sum of products of samples (x,
    Correlation coeffi cient
    Coeffi cient of regression equation
    b Coeffi cient of regression equation
    Coeffi cient of quadratic regression equation
    • Use ; and t to perform a variable calculation in STAT
    U does not function in STAT mode.
    Data Entry and Correction
    Before entering new data, clear the memory contents.
    Data entry
    Single-variable data
    Data _
    Data H frequency _ (To enter multiples of the same
    Two-variable data
    x H data y _
    x H data y H frequency _ (To enter multiples
    of the same data
    x and y)
    Note: Up to 100 data items can be entered. With the single-
    variable data, a data item without frequency assignment
    is counted as one data item, while an item assigned with
    frequency is stored as a set of two data items. With the
    two-variable data, a set of data items without frequency
    assignment is counted as two data items, while a set of
    items assigned with frequency is stored as a set of three
    data items.
    Data correction
    Correction before pressing _ immediately after a data entry:
    Delete incorrect data with j, then enter the correct data.
    Correction after pressing _:
    Use u and d to display the previously entered data set.
    Press d to display the data set in ascending (oldest fi rst)
    order. To reverse the display order to descending (latest fi rst),
    press the u key. Press @ u or @ d to jump
    the cursor to the beginning or end of the data set.
    Each data set is displayed with “X:”, “Y:”, or “F:”.
    Display and move the cursor to the data item to be modifi ed
    by using u and d, input the correct value, then press
    _ or e.
    • To delete a data set, display and move the cursor to an item
    of the data set to delete by using u and d, then press
    @ #. The data set will be deleted.
    • To add a new data set, press j to exit the display of
    previously entered data and input the values, then press _.
    Statistical Calculation Formulas
    Type Regression formula
    y = a + bx
    y = a + bx + cx
    Euler exponential
    y = a e
    y = a + b ln x
    y = a x
    y = a + b
    General exponential
    y = a b
    An error will occur when:
    • The absolute value of the intermediate result or calculation
    result is equal to or greater than 1
    × 10
    • The denominator is zero.
    • An attempt is made to take the square root of a negative
    • No solution exists in the quadratic regression calculation.
    Math Drill: b 2 0
    Math operation questions with positive integers and 0 are
    displayed randomly. It is possible to select the number of
    questions and operator type.
    Multiplication Table (
    × Table): b 2 1
    Questions from each row of the multiplication table (1 to 12) are
    displayed serially or randomly.
    To exit DRILL mode, press b and select another mode.
    Using Math Drill and × Table
    1. Press b 2 0 for Math Drill or b 2 1 for
    × Tabl e.
    2. Math Drill: Use u and d to select the number of
    questions (25, 50, or 100).
    × Table: Use u and d to select a row in the
    multiplication table (1 to 12).
    3. Math Drill: Use l and r to select the operator type for
    questions (
    +, , ×, ÷, or +−×÷).
    × Table: Use l and r to select the order type (“Serial”
    or “Random”).
    4. Press e to start.
    When using Math Drill or

    × Table (random order only),

    questions are randomly selected and will not repeat except
    by chance.
    5. Enter your answer. Press j or N to clear the entered
    number and then enter the correct answer.
    6. Press e.
    • If the answer is correct, “
    appears and the next question
    is displayed.
    • If the answer is wrong, “
    ”appears and the same question
    is displayed. This will be regarded as an incorrect answer.
    • If you press e without entering an answer, the correct
    answer is displayed and then the next question is displayed.
    This will be regarded as an incorrect answer.
    7. Continue answering the series of questions by entering the
    answer and pressing e.
    8. After you fi nish, press e and the number and percentage
    of correct answers are displayed.
    9. Press e to return to the initial screen for your current drill.
    Math Drill sample
    × Table sample
    Ranges of Math Drill Questions
    The range of questions for each operator type is as follows.
    + Addition operator: “0
    + 0” to “20 + 20”
    ] Subtraction operator: “0
    0” to “20 20”; answers are
    positive integers and 0.
    > Multiplication operator: “1
    × 0” or “0 × 1” to “12 × 12”
    ) Division operator: “0
    ÷ 1” to “144 ÷ 12”; answers are
    positive integers from 1 to 12 and 0, dividends of up to
    144, and divisors of up to 12.
    +]>) Mixed operators: Questions within all the above
    ranges are displayed.
    An error will occur if an operation exceeds the calculation ranges,
    or if a mathematically illegal operation is attempted. When an error
    occurs, pressing l or r automatically moves the cursor
    back to the place in the equation where the error occurred. Edit
    the equation or press j to clear the equation.
    Error codes and error types
    ERROR 01: Syntax error
    • An attempt was made to perform an invalid operation.
    Ex. 2 + & 5 =
    ERROR 02: Calculation error
    • The absolute value of an intermediate or fi nal calculation
    result equals or exceeds 10
    • An attempt was made to divide by zero (or an intermediate
    calculation resulted in zero).
    • The calculation ranges were exceeded while performing
    ERROR 03: Nesting error
    • The available number of buffers was exceeded. (There are
    10 buffers for numeric values and 64 buffers for calculation
    ERROR 04: Data over
    • Data items exceeded 100 in STAT mode.
    Alert Messages
    Cannot delete!
    • The selected item cannot be deleted by pressing N or
    @ y in the WriteView editor.
    Ex. * 5 r A l N
    In this example, delete the exponent before attempting to
    delete the parentheses.
    Cannot call!
    • The function or operation stored in defi nable memory (D1 to
    D4) cannot be called.
    Ex. An attempt was made to recall a statistical variable from
    within NORMAL mode.
    Buffer full!
    • The equation (including any calculation ending instructions)
    exceeded its maximum input buffer (159 characters in the
    WriteView editor or 161 characters in the Line editor). An
    equation may not exceed its maximum input buffer.
    Calculation Ranges
    Within the ranges specifi ed, this calculator is accurate to
    ±1 of the 10th digit of the mantissa. However, a calculation
    error increases in continuous calculations due to
    accumulation of each calculation error. (This is the same
    r, n!, e
    , ln, etc., where continuous calculations
    are performed internally.)
    Additionally, a calculation error will accumulate and
    become larger in the vicinity of infl ection points and
    singular points of functions.
    • Calculation ranges
    to ±9.999999999 × 10
    and 0.
    If the absolute value of an entry or a fi nal or intermediate
    result of a calculation is less than 10
    , the value is
    considered to be 0 in calculations and in the display.
    Display of results using r
    Calculation results may be displayed using r when all of the
    following conditions are met:
    • When intermediate and fi nal calculation results are displayed
    in the following form:
    • When each coeffi cient falls into the following ranges:
    a < 100; 1 < b < 1,000; 0 c < 100;
    d < 1,000; 1 e < 100; 1 f < 100
    • When the number of terms in the intermediate and fi nal
    calculation results is one or two.
    Note: The result of two fractional terms that include r will be
    reduced to a common denominator.
    BATTERY REPLACEMENTNotes on Battery Replacement
    Improper handling of batteries can cause electrolyte leakage or
    explosion. Be sure to observe the following handling rules:
    • Make sure the new battery is the correct type.
    • When installing, orient the battery properly as indicated in the
    • The battery is factory-installed before shipment, and may
    be exhausted before it reaches the service life stated in the
    specifi cations.
    Notes on erasure of memory contents
    When the battery is replaced, the memory contents are
    erased. Erasure can also occur if the calculator is defective
    or when it is repaired. Make a note of all important memory
    contents in case accidental erasure occurs.
    When to Replace the Battery
    EL-W531/W531H/W531HA/W535: If the display has poor
    contrast even after adjusting the display contrast, the battery
    requires replacement.
    EL-W531G: If the display has poor contrast or nothing appears
    on the display when j is pressed in dim lighting, even after
    adjusting the display contrast, it is time to replace the battery.
    • 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 fl uid from a leaking battery come in 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 a leaking battery, remove it and
    store in a safe place.
    • Do not leave an exhausted battery inside the product.
    • Keep batteries out of the reach of children.
    • An exhausted battery left in the calculator may leak and
    damage the calculator.
    • Explosion risk may be caused by incorrect handling.
    • Do not throw batteries into a fi re as they may explode.
    Replacement Procedure
    1. Turn the power off by pressing @ o.
    2. Remove the two screws. (Fig. 1)
    3. Slide the battery cover slightly and lift it to remove.
    4. EL-W531/W531G/W535: Remove the used battery by
    prying it out with a ball-point pen or other similar pointed
    device. (Fig. 2)
    EL-W531H/W531HA: Remove the used battery.
    5. EL-W531/W531G/W535: Install one new battery. Make sure
    the “+ side is facing up.
    EL-W531H/W531HA: Install one new battery. First insert the
    ” side toward the spring. (Fig. 3)
    6. Replace the cover and screws.
    7. Press the RESET switch (on the back) with the tip of a
    ball-point pen or similar object.
    8. Adjust the display contrast. See “Adjusting the Display
    • Make sure that the display appears as shown below. If the
    display does not appear as shown, remove the battery,
    reinstall it, and check the display once again.
    Fig. 1 Fig. 2 Fig. 3
    Automatic Power Off Function
    This calculator will turn itself off to save battery power if no
    key is pressed for approximately 10 minutes.
    Calculation features: Scientifi c calculations, statistical
    calculations, etc.
    Drill features: Math Drill and Multiplication Table
    × 32 dot matrix liquid crystal display
    Display of calculation results:
    Mantissa: 10 digits
    Exponent: 2 digits
    Internal calculations: Mantissas of up to 14 digits
    Pending operations: 64 calculations 10 numeric values
    Power source: EL-W531/W535
    1.5 V — (DC): Alkaline battery (LR44 or
    × 1
    Built-in solar cells
    1.5 V — (DC): Backup battery
    (Alkaline battery (LR44 or equivalent)
    × 1)
    1.5 V — (DC): Heavy duty manganese
    battery (size AAA or R03)
    × 1
    Power consumption: EL-W531/W531H/W531HA/W535
    0.00011 W
    Operating time:
    (varies according to
    use and other factors)
    Approx. 3,000 hours when continuously
    displaying 55555. at 25°C (77°F)
    Approx. 3,000 hours when continuously
    displaying 55555. at 25°C (77°F), using
    the alkaline battery only
    Approx. 17,000 hours when continuously
    displaying 55555. at 25°C (77°F)
    Operating temperature:
    0°C–40°C (32°F–104°F)
    External dimensions:
    79.6 mm (W)
    × 161.5 mm (D) ×
    15.5 mm (H)
    3-1/8” (W)
    × 6-11/32” (D) × 5/8” (H)
    Weight: EL-W531/W535
    Approx. 100 g (0.22 lb) (including battery)
    Approx. 102 g (0.23 lb) (including battery)
    Approx. 107 g (0.24 lb) (including battery)
    × 1 (installed), operation
    manual, and hard case
    Visit our Web site.






    Total remaining
    See step 6 above.
    Order type
    Percentage correct
    Correct answers
    Current question/
    Total questions
    See step 6 above.
    Number of questions
    Operator type
    Percentage correct
    Correct answers
    Entry value
    DEG multiples of 15
    multiples of
    multiples of
    Data set number
    Data y
    Data set number
Sharp EL-W535XBSL

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Sharp EL-W535XBSL especificações

Marca Sharp
Modelo EL-W535XBSL
Produto Calculadora
EAN 74000019164
Língua Inglês
Tipo de arquivo PDF
Tipo Calculadora científica
Forma Pocket
Cor do produto Preto
Dígitos 16 dígitos
Linhas de texto 3 linhas
Inclinação do visor Não
Gestão de energia
Desactivação automática Sim
Fonte de alimentação Bateria
Registos de memória 9
Pesos e dimensões
Dimensões do produto (CxLxA) 168 x 80 x 14 mm
Peso do produto 98.5 g
Conversor de moeda Não
Porta USB Não

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