User manual SHARP EL-531H OPERATION EXAMPLES

[. . . ] 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 fluids, for example water, can splash onto it. Raindrops, water spray, juice, coffee, steam, perspiration, etc. , will also cause malfunction. This product, including accessories, may change due to upgrading without prior notice. [. . . ] If the cursor is located at the right end of an equation, the d key will function as a back space key. To insert a number, move the cursor to the place immediately after where the number is to be inserted, then enter the number. 15 + 8 15 3 15 3 = 15 6 = 13 24 = 15 24 = N 15 + 8 dd -3 N 15 * 3 = < d6= N 13 * 24 = > >d 5 = 1. 81025 8. 415778426 2'401. 256. 37= [Floating point] [Scientific notation] [TAB set to 2] [Floating point] 0. 428571428 4. 2857142861001 4. 291001 0. 428571428 4!= 10P3 = 5C2 = Calculating the Greatest Common Factor (G. C. F. ) or Least Common Multiple (L. C. M. ) To calculate the G. C. F. 1324 360. Use @ to switch to the scientific notation, press @i, then give a value between 0 and 9 to set the decimal placement. The number will be displayed in scientific notation if the floating point value does not fit in the following range: 0. 000000001 | x | 9999999999 The last decimal digit in scientific notation will be rounded off. = 3 11 += 45 200 32% = 4 @ + 5 @= 200 * 32 @% 24GCF36_ 12. 15LCM9_ 45. 150 300 = ?% 150 / 300 @% 200 + (200 32%) = 200 + 32 @% 300 (300 25%) = 300 - 25 @% Determination of the Angular Unit In this calculator, the following three angular units (degrees, radians, and grads) can be specified. DEG () Calculating Quotient and Remainder " : Calculates the quotient and remainder. 23 5 = (R: Remainder) 9. 5 4 = 32 (5) = N 23 " 5 = 9. 5 " 4 = 32 " 5 = Hard Case Random Numbers RAD (rad) Press G GRAD (g) A pseudo-random number with three significant digits can be generated by pressing @`=. 9. 5`4_ R1. 5 Priority Levels in Calculation DISPLAY Symbol This calculator performs operations according to the following priority: 1 Functions expressed with numerical data placed before (such as x1, x2, n!) 2 yx, x y 3 Functions expressed with numerical data placed after (such as sin, cos, (), ex, 10x, ) 4 Multiplications with the sign "" omitted from the front of a function (such as 3cos20) 5 nCr, nPr, GCF, LCM 6 , , INT, mod 7 +, 8 Operations end commands (such as =, M+, %, DEG, RAD, GRAD, DATA, CD) A parenthesized calculation section has precedence over other sections of the calculation. Angular Unit Conversions SCIENTIFIC CALCULATIONS Select the normal mode. In each example, press N to clear the display before performing the calculation. Each time @g are pressed, the angular unit changes in sequence. 90 [rad] [g] [] sin10. 8 = [] [rad] [g] [] N 90 @g @g @g @S 0. 8 = @g @g @g 32`5_ 6. 53. 13010235 0. 927295218 59. 03344706 53. 13010235 " operation cannot be followed by another operation such as (+, , , ), otherwise an error will result. Equation too long (Error 4): The equation exceeded the maximum input buffer (159 characters). y < 0: x = n (0 < |x| < 1: = 2n1, x 0)*, x 10100 < xlog |y| < 100 1 . y < 0: x = 2n1 (0 < |x| < 1: = n, x 0)*, x 1 10100 < log |y| < 100 x 10100 < x 230. 2585092 10100 < x < 100 |x| < 1050 0 x < 10100 |x| < 10100 (x 0) 0 n 69* 0 r n 9999999999* 0 r n 9999999999* 0 r 69 0 n < 1010 DEGRAD, GRADDEG : |x| < 10100 RADGRAD : |x| < 1098 2 n!Replace the old battery with new, with the positive (+) sides facing up. Otherwise, remove the battery, reinstall, and check the display again. How to Simplify a Fraction [Reducing to its simplest form] If the result of pressing = is displayed with the "SIMP" symbol, the calculation can be reduced further. Use the key to set the factor of the fraction to simplify, either automatically or manually. Automatic Simplification 12 +--= 3 12 N 1 3 + 2 12 = 6/12 SIMP FACTOR?=* SIMP 6_ = 1/2 SIMP In the statistical calculation formulas, an error will occur if: the absolute value of the intermediate result or calculation result is equal to or greater than 1 10100. an attempt is made to take the square root of a negative number. STATISTICAL CALCULATIONS To enter the statistical mode, press @". The following statistics can be obtained: : Mean of samples (x) x sx : Standard deviation of samples (x) x : Population standard deviation of samples (x) n : Number of samples x : Sum of samples (x) x2 : Sum of the squares of samples (x) EQUATION SOLVERS Simultaneous linear equations with two unknowns or quadratic equations may be solved using this function. 1 @0: Simultaneous linear equation with two unknowns (VLE) a1x + b1y = c1 a2x + b2y = c2 Coefficients: a1, b1, c1, a2, b2, c2 Solutions: x, y Automatic Power Off Function This calculator will turn its power off automatically if no key is pressed for about 10 minutes. * If you do not know a common factor, press =. [. . . ] 73 g (0. 17 lb) (Including battery) Accessories: Battery 1 (installed), operation manual, quick reference card and hard case. 2 =* SIMP 3/6 3= 1/2 * "2" is entered as a factor, and the "SIMP" will be displayed to indicate further simplification of the fraction. If the entered value is not a common factor, the cursor will be set under the value. Now that you have learned how to reduce a fraction to its simplest form, you can start using your calculator to perform fraction calculations quickly and efficiently. 51 +--= 6 14 N 5 6 + 1 14 = SIMP =* sin1x, cos1x tan1x In x, log x n= n= n= 7_ 1. * 70, 13_ 13. [. . . ]