User manual SHARP EL-500M

[. . . ] · · · · Before using for the first time After replacing the batteries To clear all memory contents If an abnormal condition occurs and all keys are inoperative. Power On and Off Press N to turn the calculator on, and @F to turn it off. Clearing Methods There are three clearing methods as follows: Clearing operation N @c RESET : Clear × : Retain *1 Independent memory M. Entry (Display) M*1 × × STAT, ANS*2 × Scientific Notation People who need to deal with very large and very small numbers often use a special format called exponential or scientific notation. The second part represents how large or small the number is in powers of 10. [. . . ] If numbers longer than 5 digits are entered, normal division is performed. = cos­1 x 0 180 0 0 200 FRACTION CALCULATIONS Entering Fractions · To enter fractions, use the following keys: Ø : Places the symbol "/" between the numerator and the denominator. : Separates the integer (whole number) part from the fractional part of a mixed number. 2 4­ = 3 1 4­ = 2 N2Ø3= 41Ø2= ­90 90 ­---- 2 2 ­100 100 Ns 60 = 0. 866025403 Gu(@V/ 4 )= 0. 707106781 G@T 1 = G @I 20 = @l 50 = @e 3 = @¡ 1. 7 = 15. M 45. M 60. M 25. M 147. M 47. M 219. M 2/3 4¬1/2 ¬ 50. 2. 995732274 1. 698970004 20. 08553692 50. 11872336 34. · Up to 10 key strokes, including "¬" and "/", can be used to enter a fraction. Last answer memory (ANS) When = is pressed, the calculation result will automatically be stored in the last answer memory. : Recalls the value stored in last answer memory. 6+4 = ANS ANS + 5 N6+4= +5= Calculating with Fractions Fractions can be incorporated into an arithmetic calculation. "SIMP" symbol will appear with a calculation result if the answer can be further simplified. Refer to the following section of this manual for details. 1+­= ­1 23 2×­= ­1 53 N1Ø2+1Ø3= 2Ø5*1Ø3= 3 @L + 5 @L= @/ 32 + 3 @$ 21 = 8. 415778426 7 @TM 4 = 4 @!= 10. = 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 ª key to set the factor of the fraction to simplify, either automatically or manually. [Automatic Simplification] 12 SIMP 6/12 ­ + -- = N 1 Ø 3 + 2 Ø 12 = 3 12 ªFACTOR?SIMP 6/12 =* 6_SIMP6/12 = 1/2 Conversion from/to a Fraction º : Converts a decimal or improper fraction to a mixed fraction. æ : Converts a mixed fraction or decimal to an improper fraction. ø : Converts an improper fraction or a mixed fraction to a decimal. 5 4­ = 6 [A. xxx] [A/B] 1÷3= [A/B] 6÷5= [A/B] [AB/C] [A. xxx] 1. 25 + 2 = ­ 5 [AB/C] N45Ø6= ø æ 1/3= æ 6/5= æ º ø 1. 25 + 2 Ø 5 = º ª== Correcting Entered Data Correction prior to pressing k: Delete incorrect data with N. Correction after pressing k: Press > to confirm the latest entry and press @J to delete it. Calculating Statistical Quantities Score Number of Persons 30 40 50 60 70 80 90 100 5 3 10 12 13 9 7 3 @c 30 § 5 k 40 § 3 k 50 § 10 k 60 § 12 k 70 § 13 k 80 § 9 k 90 § 7 k 100 § 3 k @÷ @£ @p @n @z @w ' n= 5. x2 = 285500. 4¬5/6 ¬ 4. 833333333 29/6 0. 333333333 1/3 SIMP SIMP * If you do not know a common factor, press =. [Manual Simplification] 12 SIMP 6/12 ­ + -- = N 1 Ø 3 + 2 Ø 12 = 3 12 ªFACTOR?SIMP 6/12 SIMP 23/6 2 =* ª3= 1/2 1. 2 12/10 1¬2/10 ¬ 1. 2 1. 65 * "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. 5 + -- = N 5 Ø 6 + 1 Ø 14 = ­1 6 14 =* SIMP 38/42 SIMP1¬65/100 ¬ 1¬13/20 ¬ STATISTICAL CALCULATIONS To enter the statistical mode, press @". [. . . ] · If the product is not to be used for some time, to avoid damage to the unit from leaking batteries, remove them and store in a safe place. · Do not fit partially used batteries, and be sure not to mix batteries of different types. · Exhausted batteries left in the calculator may leak and damage the calculator. [. . . ]