User manual SHARP EL531V

[. . . ] After reading this manual, store it in a convenient location for future reference. Note: Some of the models described in this manual may not be available in some countries. 1 4 3 8 9 6 2 5 7 This calculator performs arithmetic operations and memory calculations using a fraction, and conversion between a decimal number and a fraction. · In all cases, a total of up to 10 digits including integer, numerator, denominator and the symbol (l) can be entered. · If the number of digits to be displayed is greater than 10, the number is converted to and displayed as a decimal number. [. . . ] 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, the internal value is converted to match that of the display, so that the displayed value can be used without change in subsequent operations. 5. STATISTICAL CALCULATIONS Press @ m 1 to select single-variable statistics mode and @ m 2 to select two- variable statistics mode. The following statistics can be obtained for each statistical calculation (refer to the table below): 6. · DISPLAY Equation Display Mantissa Symbol · If the value for floating point system does not fit in the following range, the calculator will display the result using scientific notation system: 0. 000000001 | x | 9999999999 Single-variable statistical calculation Statistics of Exponent 1 (12) (13) (Fig. 3) Determination of the Angular Unit In this calculator, the following three angular units can be specified. DEG (°) (During actual use not all symbols are displayed at the same time. ) If the value of mantissa does not fit within the range ±0. 000000001 ­ ±9999999999, the display changes to scientific notation. The display mode can be changed according to the purpose of the calculation. / Linear regression calculation Press G GRAD (g) RAD (Radians) Statistics of and and, in addition, estimate of y for a given x (estimate y') and estimate of x for a given y (estimate x') 1 2 : Appears when the entire equation cannot be displayed. Press </> to see the remaining (hidden) section. : 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 @ H are pressed, the symbols "2ndF HYP" appear, indicating that inverse hyperbolic functions are enabled. 1 2ndF HYP SCIENTIFIC CALCULATIONS · Press @ m 0 to select the normal mode. · In each example, press ª to clear the display. And if the FIX, SCI, or ENG indicator is displayed, clear the indicator by pressing @ f. ALPHA: Indicates that @ K or O (R) has been pressed, and entry (recall) of memory contents and recall of statistics can be performed. FIX/SCI/ENG: Indicates the notation used to display a value and changes each time @ f are pressed. DEG/RAD/GRAD: Indicates angular units and changes each time G is pressed. STAT Arithmetic Operations (2) 2 · The closing parenthesis ) just before = or ; may be omitted. Constant Calculations (3) x sx x n x x2 y sy y y y2 xy r a b 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) Means 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 coefficient Coefficient of regression equation (y=a+bx) Coefficient of regression equation (y=a+bx) Automatic Power Off Function This calculator will turn itself off to save battery power if no key is pressed for approximately 10 minutes. SPECIFICATIONS Scientific calculations, statistical calculations, etc. Internal calculations: Mantissas of up to 12 digits Pending operations: 16 calculations 8 numeric values (4 numeric values in STAT mode) Power source: 3V ¶ (DC): [EL-509V/EL-531V] Alkaline batteries (LR44) × 2 [EL-509VH/EL-531VH] Heavy duty manganese batteries (size AA or R6) × 2 Power consumption: 0. 0006 W Operating time: [EL-509V/EL-531V] Approx. 15000 hours when continuously displaying 55555. Varies according to use and other factors. Operating temperature: 0°C ­ 40°C (32°F ­ 104°F) External dimensions: [EL-509V/EL-531V] 78. 6 mm (W) × 152 mm (D) × 10. 5 mm (H) 3-3/32" (W) × 5-31/32" (D) × 13/32" (H) [EL-509VH/EL-531VH] 78. 6 mm (W) × 166 mm (D) × 19. 5 mm (H) 3-3/32" (W) × 6-17/32" (D) × 25/32" (H) Weight: [EL-509V/EL-531V] Approx. 75 g (0. 166 lb) (Including batteries) [EL-509VH/EL-531VH] Approx. 115 g (0. 254 lb) (Including batteries) Accessories: Batteries × 2 (installed), operation manual, operation examples sheet, quick reference card and hard case Calculations: : Appears when statistics mode is selected. : Indicates that a numerical value is stored in the independent memory. M · In the constant calculations, the addend becomes a constant. Subtraction and division are performed in the same manner. [. . . ] Y memory · r, xy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X memory, Y memory Temporary memories and last answer memory are cleared even when the same mode is reselected. Multi-line Playback function (1) This calculator is equipped with a function to recall previous equations. Equations also include calculation ending instructions such as "=" and a maximum of 142 characters can be stored in memory. When the memory is full, stored equations are deleted in the order of the oldest first. [. . . ]