User manual SHARP EL-W531

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Manual abstract: user guide SHARP EL-W531

Detailed instructions for use are in the User's Guide.

[. . . ] DISPLAY ENGLISH Symbol SCIENTIFIC CALCULATOR MODEL EL-W531 EL-W531G EL-W531H EL-W531HA EL-W535 Dot matrix display Mantissa Exponent 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. [. . . ] 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 first. Data entry Single-variable data Data _ Data H frequency _ (To enter multiples of the same data) Two-variable data Data x H data y _ Data 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 singlevariable 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 first) order. To reverse the display order to descending (latest first), 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:". See step 6 above. Number of questions Operator type Percentage correct Correct answers 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 × Table sample Data set number Data x Frequency Total remaining questions Question Data set number Data x Data y Frequency 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 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´). 15 Display and move the cursor to the data item to be modified 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 @ #. · To add a new data set, press j to exit the display of previously entered data and input the values, then press _. See step 6 above. Multiplicand Order type Percentage correct Correct answers Statistical Calculation Formulas Type Linear Quadratic Euler exponential Logarithmic Power Inverse General exponential Regression formula 17 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. y = a + bx y = a + bx + cx 2 y = a ebx y = a + b ln x y = a xb 1 y=a+b x Quadratic regression calculation Statistics of and , and coefficients a, b, c in the quadratic regression formula (y = a + bx + cx 2). (For quadratic regression calculations, no correlation coefficient (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 coefficients a and b, from converted data rather than entered data. ) y = a bx ERRORS AND CALCULATION RANGES Errors An error will occur if an operation exceeds the calculation ranges, or if a mathematically illegal operation is attempted. [. . . ] · Kasta ej batteriet i vattnet eller i hushållssoporna. Batteriet får ej heller utsättas för öppen eld. For Europe only: sin x, cos x tan­1 x, 3P x ln x, log x, loga x ­1 ­1 |x| 1 | x | < 10100 10­99 x < 10100, 10­99 a < 10100 (a 1) · y > 0: yx -10100 < x log y < 100 · y = 0: 0 < x < 10100 · y < 0: x = n 1 (0 < | x | < 1: = 2n - 1, x 0)*, x -10100 < x log | y | < 100 -10100 < log y < 100 (x 0) x · y = 0: 0 < x < 10100 · y < 0: x = 2n - 1 1 (0 < | x | < 1: = n, x 0)*, x · y > 0: 1 x y P -10100 < log | y | < 100 x ex 10 x sinh x, cosh x, tanh x sinh­1 x cosh x tanh­1 x ­1 1 -10100 < x 230. 2585092 -10100 < x < 100 | x | 230. 2585092 | x | < 1050 1 x < 1050 |x| < 1 | x | < 1050 | x | < 2. 15443469 × 1033 0 x < 10100 | x | < 10100 (x 0) 0 n 69* 0 r n 9999999999* n! (n - r)! x2 x 3 x P x ­1 n! nPr OPMERKING: ALLEEN VOOR NEDERLAND/ NOTE: FOR NETHERLANDS ONLY < 10100 nCr 0 r n 9999999999* 0 r 69 n! [. . . ]

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