Sharp EL-531WB-BL EL-W531 , EL-W531G , EL-W531H , EL-W531HA , EL-W535 Operatio - Page 2

• 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 priority: ᶃ Fractions (1m4, etc.) ᶄ Functions preceded by their argument (x−1, x 2, n!, etc.) ᶅ yx, xr ᶆ Implied multiplication of a memory value (2Y, etc.) ᶇ Functions followed by their argument (sin, cos, etc.) ᶈ Implied multiplication of a function (2sin 30, A ⎯14 , etc.) ᶉ nCr, nPr AND ᶍ OR, XOR, XNOR ᶎ =, M+, M−, ˰M, ⾣DEG, ⾣RAD, ⾣GRAD, DATA, CD, ⾳r θ, ⾳xy, and other calculation ending instructions • If parentheses are used, parenthesized calculations have precedence over any other calculations. INITIAL SET UP Mode 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 menu. Press j to exit the SET UP menu. Determination of the angular unit The following three angular units (degrees, radians, and grads) can be specified. DEG (°): J 0 0 (default) RAD (rad): J 0 1 GRAD (g): J 0 2 Selecting the display notation and decimal places 3 Five display notation systems are used to display calculation results: Two settings of Floating point (NORM1 and NORM2), Fixed decimal point (FIX), Scientific 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 significant digits can be set to any value between 0 and 9. Entering 0 will set a 10-digit display. Setting the floating point number system in scientific notation Two settings are used to display a floating-point number: NORM1 (the default) and NORM2. A number is automatically displayed in scientific 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. SCIENTIFIC CALCULATIONS • Press b 0 to select NORMAL mode. • In each example, press j to clear the display first. Unless otherwise specified, calculation examples are performed in the WriteView editor with the default display settings (@ P 0). Arithmetic Operations 4 • The closing parenthesis ) just before = or m may be omitted. Constant Calculations 5 • 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. Functions 6 • 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 significant digits from 0 up to 0.999, can be generated by pressing @ w 0 e. 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 flip, 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 7 Each time @ ] is pressed, the angular unit changes in sequence. Memory Calculations 8 Memory calculations can be performed in NORMAL and STAT modes. 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. Notes: • Calculation results from the functions indicated below are automatically stored in the X or Y memories replacing any existing values. • ⾳r θ, ⾳xy: 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. Definable memories (D1-D4) You can store functions or operations in definable memories (D1-D4). • To store a function or operation, press x, followed by a definable 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 definable memory will be replaced when you save a new one into that memory. • When displaying and correcting a data set in STAT mode, you cannot store functions or operations in definable memories. Chain Calculations 9 The previous calculation result can be used in the subsequent calculation. However, it cannot be recalled after entering multiple instructions. Fraction Calculations 10 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. Notes: • 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, first convert it by pressing @ :.