ENGLISH SCIENTIFIC CALCULATOR

Hard Case

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.

SET UP Menu

Press @ J to display the SET UP menu. Press j to exit the SET UP menu. Determination of the angular unit
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. When you press U, the display will cycle through the following display styles: improper fractions Mixed fractions (with or without ) decimal numbers (with or without )

EL-W506 EL-W516 EL-W546

Remove the hard case, holding it with your ngers in the positions shown below.
The WriteView editor (default) The Line editor
The following three angular units (degrees, radians, and grads) can be specied. DEG (): @ J (default) RAD (rad): @ J GRAD (g): @ J 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), Scientic notation (SCI), and Engineering notation (ENG). When @ J (FIX) or @ J (ENG) is pressed, TAB(09)? will be displayed and the number of decimal places (TAB) can be set to any value between 0 and 9. When @ J (SCI) is pressed, SIG(09)? will be displayed and the number of signicant digits can be set to any value between 0 and 9. Entering 0 will set a 10-digit display. Setting the oating point number system in scientic notation Two settings are used to display a oating-point number: NORM1 (the default) and NORM2. A number is automatically displayed in scientic 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 (default) The Line editor (LINE): @ J 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 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): d 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 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.

OPERATION MANUAL

PRINTED IN CHINA / IMPRIM EN CHINE / IMPRESO EN CHINA 07HGK (TINSE1307EHZZ)
Notes: The WriteView Editor is only available in NORMAL mode. 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.
Proper fractions (with or without )

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. DEG RAD Entry value multiples of 15

1 multiples of 12

Clearing the Entry and Memories INTRODUCTION
Thank you for purchasing the SHARP Scientic 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.
Mantissa Exponent Dot matrix display

Operation

DISPLAY

Symbol

Entry AF, F1F4, matAD*4 ANS STAT*3 L1L4*5 (Display) M, X, Y*1 D1D4*2
j @Z Mode selection (b) @ P 0*7 @ P 1 0*7 @ P 2 0*7,*8 RESET switch*8 : Clear : Retain *6
50 GRAD multiples of 3 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).
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.

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 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 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 1015 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.
*1 Press j x and then choose a memory to clear one variable memory. *2 Formula memories and denable 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 (AF, M, X, Y, F1F4, D1D4, ANS, STAT, matAD, and L1L4) 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 calculators default settings. You can do the same thing by pressing the RESET switch on the back of the calculator.

2ndF: HYP:

Indicates that some contents are hidden in the directions shown. Appears when @ is pressed, indicating that the functions shown in orange are enabled. 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.
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 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.
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: M: / Appears during the execution of a calculation. Indicates that a numerical value is stored in the independent memory (M). : Indicates the mode of expression for results in CPLX mode. W-VIEW: Indicates that the WriteView editor is selected.
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.

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 downbetween 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 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 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 =.
Differential calculation: f(x) = dx

) f(x )

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 specied, the default value of n = 100 will be used. 3. Press =. Notes: Parameters are entered in the following way: WriteView editor:
a function[, subintervals]dx

Chain Calculations

Angular Unit Conversions
Each time @ ] is pressed, the angular unit changes in sequence.
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.

Use of t or ; will recall the value stored in memory using up to 14 digits. Formula memories (F1F4) You can store expressions in formula memories (F1F4). 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.
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:

Remarks

in : inch cm : centimeter ft : foot m : meter yd : yard m : meter mi : mile km : kilometer n mi : nautical mile m : meter acre : acre*1 : square meter m2 oz : ounce (avoirdupois) g : gram lb : pound (avoirdupois) kg : kilogram F : degree Fahrenheit C : degree Celsius gal (US) : gallon (US) L : liter gal (UK) : gallon (UK) L : liter
oz(US) : uid ounce (US) mL : milliliter oz(UK) : uid ounce (UK) mL : milliliter : calorieth calth J : joule : calorie (15C) cal15 J : joule calIT : calorieIT J : joule hp : horsepower (UK) W : watt ps : horsepower (metric) W : watt (kgf/cm2) Pa : pascal atm : atmosphere Pa : pascal (1 mmHg = 1 Torr) Pa : pascal (kgfm) : newton meter Nm

Constant Calculations

Line editor:

Degree

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.
d/dx (function, value of x[, minute interval])
8 Function The function returns the cumulative sum of a given expression

Minute

Second

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 or y in Y memory). The results of coordinate conversions will be displayed as decimal numbers even in the WriteView editor.

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 specied, the default value of n = 1 will be used. 3. Press =. Note: Parameters are entered in the following way: WriteView editor:

Functions

Refer to the calculation examples for each function. In the Line editor, the following symbols are used:
: to indicate an expressions power. (m, @ ", @ Y) : to separate integers, numerators, and denominators. (W, @ k)

Rectangular coord.

Polar coord.
When using @ O or @ W in the Line editor, values are entered in the following way: logn (base, value) abs value
(function[, increment]) x = initial value

end value

*1 based on US survey foot
(function, initial value, end value[, increment])
Calculations Using Engineering Prexes
Calculation can be executed in NORMAL mode (excluding N-base) using the following 9 types of prexes.
k M G T m n p f (kilo) (Mega) (Giga) (Tera) (milli) (micro) (nano) (pico) (femto)

STATISTICAL CALCULATIONS

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 choice: 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
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 rst) order. To reverse the display order to descending (latest 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:.

Data set number Data x Frequency
5. Enter your answer. If you make a mistake, press j or N to clear any entered numbers, and enter your answer again. 6. Press e. If the answer is correct, is displayed. appears and the next question
A complex number expressed in rectangular coordinates with the y-value equal to zero, or expressed in polar coordinates with the angle equal to zero, is treated as a real number. Press N 1 to return the complex conjugate of the specied complex number.
N30 N31 N32 N33 N34 N35 N36 N37 N38
If the answer is wrong, appears and the same question is displayed. This will be counted 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 counted as an incorrect answer. 7. Continue answering the series of questions by entering the answer and pressing e. 8. After you 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
Current question/ Total questions Question

MATRIX CALCULATIONS

You can store and calculate up to four matrices containing up to four rows and four columns each in MATRIX mode. Press b 4 to enter MATRIX mode.

Modify Function

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
Decimal calculation results are internally obtained in scientic 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 operations. When using the WriteView editor, if the calculation result is displayed using fractions or irrational numbers, press U to convert it to decimal form rst. The modify function can be used in NORMAL, STAT, MATRIX, or LIST modes.

Data set number Data x Data y Frequency
Note: You can use the MATH menu in MATRIX mode to edit, recall, and store matrices, as well as to call matrixspecic functions.
Entering and Storing Matrices
Before performing matrix calculations, a matrix must be created. Follow the steps below to enter and store matrices. 1. Press b 4 to enter MATRIX mode. 2. Press N 2 to bring up the matrix entry screen. Any matrix data remaining in the buffer, along with any previously entered, loaded, or calculated matrix data, will be displayed. 3. Dene the matrix dimensions (up to four rows by four columns) by entering the required dimensions using the number keys and pressing e.
and the value of the normal probability function
Linear regression calculation Statistics of and. In addition, the estimate of y for a given x (estimate y) and the estimate of x for a given y (estimate x). Quadratic regression calculation Statistics of and , and coefcients a, b, c in the quadratic regression formula ( y = a + bx + cx 2). (For quadratic regression calculations, no correlation coefcient (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 coefcients a and b, from converted data rather than entered data.)
x sx x n x x 2 y sy y y y 2 xy r a b c Mean of samples (x data) Sample standard deviation (x data) Population standard deviation (x data) Number of samples Sum of samples (x data) Sum of squares of samples (x data) Mean of samples (y data) 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, y) Correlation coefcient Coefcient of regression equation Coefcient of regression equation Coefcient of quadratic regression equation
Display and move the cursor to the data item to be modied by using u and d, enter 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 _.

In STAT mode, the three probability density functions can be accessed under the MATH menu, with a random number used as a normal distribution variable. Notes: P(t), Q(t), and R(t) will always take positive values, even when t < 0, because these functions follow the same principle used when solving for an area. Values for P(t), Q(t), and R(t) are given to six decimal places. The standardization conversion formula is as follows: xx t= x
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: to 20 20; answers are positive integers and 0. Multiplication operator: or to Division operator: 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.

Solver Function

The solver function nds the value for x that reduces the entered expression to zero.
Use ; and t to perform a variable calculation in STAT mode. U does not function in STAT mode.

DRILL MODE

Math Drill: b 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 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. +]>)
This function uses Newtons method to obtain an approximation. Depending on the function (e.g. periodic) or start value, an error may occur (ERROR 02) due to there being no convergence to the solution for the equation. The value obtained by this function may include a margin of error. If it is larger than acceptable, recalculate the solution after changing the Start and dx values. Change the Start value (e.g. to a negative value) or dx value (e.g. to a smaller value) if: no solution can be found (ERROR 02). more than two solutions appear to be possible (e.g. a cubic equation). to improve arithmetic precision. The calculation result is automatically stored in the X memory. Press j to exit the solver function. Performing solver function 1. Press b 0. 2. Input an expression with an x variable. 3. Press N 2. 4. Enter a Start value and press e. The default value is 0. 5. Enter a dx value (minute interval). 6. Press e.

aug (matrix name, matrix name) Appends the second matrix to the rst matrix as new columns. The rst and second matrices must have the same number of rows. identity value rnd_mat (row, column) det matrix name Returns the identity matrix with specied value of rows and columns. Returns a random matrix with specied values of rows and columns. Returns the determinant of a square matrix.

trans matrix name

Returns the matrix with the columns transposed to rows and the rows transposed to columns. Creates lists with elements from the left column of each matrix. (matAL1, matBL2, matCL3, matDL4) Mode changes from MATRIX mode to LIST mode. Creates lists with elements from each column of the matrix. (matAL1, L2, L3, L4) Mode changes from MATRIX mode to LIST mode.
Using Lists in Calculations
Lists stored in memories (L1L4) can be used in arithmetic calculations and calculations that use x3, x2, and x1. You can also use the following list-specic functions that are available in the MATH menu.
sortA list name sortD list name dim (list name, size) ll (value, size) cumul list name df_list list name Sorts list in ascending order. Sorts list in descending order. Returns a list with size changed as specied. Enters the specied value for all items. Sequentially cumulates each item in the list. Returns a new list using the difference between adjacent items in the list. Returns a list appending the specied lists. Returns the minimum value in the list. Returns the maximum value in the list. Returns the mean value of items in the list. Returns the median value of items in the list. Returns the sum of items in the list. Returns the multiplication of items in the list. Returns the standard deviation of the list. Returns the variance of the list.
Quadratic and Cubic Equations Quadratic (ax2 + bx + c = 0 ) or cubic (ax3 + bx2 + cx + d = 0)
equations may be solved using the following functions. Quadratic equation solver: b Cubic equation solver: b Solving quadratic and cubic equations Press b or b 6 3. Coefcients for these equations can be entered in the same manner as those for simultaneous linear equations.

Calculation Ranges

Replacement Procedure
1. Turn the power off by pressing @ o. Fig. 1 2. Remove the two screws. (Fig. 1) 3. Slide the battery cover slightly and lift it to remove. 4. Remove the used battery by prying it out with a ball-point pen or other similar pointed device. (Fig. 2) Fig. 2 5. Install one new battery. Make sure the + side is facing up. 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 Contrast. 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.

matlist (N 7)

matAlist (N 8)
Within the ranges specied, 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 for y x, xr, n!, e x, ln, Matrix/List calculations, etc., where continuous calculations are performed internally.) Additionally, a calculation error will accumulate and become larger in the vicinity of inection points and singular points of functions. Calculation ranges
ERRORS AND CALCULATION RANGES Errors
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 or @ Z 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 nal calculation result equals or exceeds 10100. An attempt was made to divide by zero (or an intermediate calculation resulted in zero). The calculation ranges were exceeded while performing calculations. ERROR 03: Nesting error The available number of buffers was exceeded. (There are 10 buffers* for numeric values and 64 buffers for calculation instructions). * 5 buffers in CPLX mode, and 1 buffer for matrix/list data. ERROR 04: Data over error Data items exceeded 100 in STAT mode. ERROR 07: Denition error Matrix/List denition error or the attempted entering of an invalid value. ERROR 08: DIM unmatched error Matrix/List dimensions inconsistent while calculating. ERROR 09: Invalid DIM error Size of matrix/list exceeds calculation range. ERROR 10: Undened error Undened matrix/list used in calculation.

1099 to 9.and 0.

If the absolute value of an entry or a nal or intermediate result of a calculation is less than 1099, 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 nal calculation results are displayed in the following form: P f When each coefcient falls into the following ranges:

Simultaneous Linear Equations
Simultaneous linear equations with two unknowns (2-VLE) or with three unknowns (3-VLE) may be solved using the following functions. 2-VLE: b a1x + b1y = c1 a2x + b2y = c2 3-VLE: b a1x + b1y + c1z = d1 a2x + b2y + c2z = d2 a3x + b3y + c3z = d3
Operating time: Approx. 3,000 hours when (varies according to continuously displaying 55555. at use and other factors) 25C (77F), using the alkaline battery only Operating temperature: 0C40C (32F104F) 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: Accessories: Approx. 102 g (0.23 lb) (including battery) Battery 1 (installed), operation manual, calculation examples, and hard case

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!

Cautions

An exhausted battery left in the calculator may leak and damage the calculator. 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 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. Explosion risk may be caused by incorrect handling. Do not throw batteries into a re as they may explode.

a1 b1 a2 b2

a1 b1 c1 a2 b2 c2 a3 b3 c3
If the determinant D = 0, an error occurs. If the absolute value of an intermediate result or calculation result is or more, an error occurs. Solving simultaneous linear equations 1. Press b or b 6 1. 2. Enter the value for each coefcient (a1, etc.). Coefcients can be entered using ordinary arithmetic operations. To clear the entered coefcient, press j. Press u or d to move the cursor up or down through the coefcients. Press @ u or @ d to jump to the rst or last coefcient. 3. When all coefcients have been entered, press e to solve the equation. While the solution is displayed, press e or j to return to the coefcient entry display. To clear all the coefcients, press @ Z.
The function or operation stored in denable memory (D1 to D4) cannot be called. Ex. An attempt was made to recall a statistical variable from within NORMAL mode. Expressions stored in formula memories (F1 to F4) cannot be called. 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.