User manual SHARP EL-500M

[. . . ] FRACTION/SCIENTIFIC CALCULATOR MODEL EL-500M : Indicates that a fraction can be simplified further, or expressed with a lower denominator. DEG/RAD/GRAD: Indicates angular units (Degrees, Radians and Grads) and changes each time G is pressed. ' : Appears when statistical mode is selected. M : Indicates that a numerical value is stored in the independent memory. SIMP 7 ×, ÷ 8 +, ­ 9 Operations end commands (such as =, M+, %, DEG, RAD, GRAD, DATA, CD) · A parenthesized calculation section has precedence over other sections of the calculation. OPERATION MANUAL BEFORE USING THE CALCULATOR INTRODUCTION Thank you for purchasing the SHARP Fraction/Scientific Calculator Model EL-500M. [. . . ] Independent memory (M) O : Stores the result in the memory. R : Recalls the value stored in the memory. @; : Adds the result to the value in the memory. 30 + (3 × 5) = (3 × 5) × 4 = 20+10­5= 121+13×2= +) 21×3­16= (Total) N3*5O 30 +R= R* 4 = N 20 + 10 - 5 O 121 + 13 * 2 @; 21 * 3 - 16 @; R NO Functions · For each example, press N to clear the display. · Before starting calculations, specify the angular unit. · The results of inverse trigonometric functions are displayed within the following range: = sin­1 x, = tan­1 x DEG RAD GRAD sin60[°]= cos­[rad]= tan­11=[g] ln 20 = log 50 = e3 = 101. 7 = 32 + 52 = 32 + 321 = 74 = 4 · Pressing " cannot be followed by pressing a key for another operation such as (+, ­, ×, ÷), otherwise an error will result. · The calculator can display a quotient or remainder up to 5 digits in length, including the "­" sign. 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. In some cases, a decimal may not be converted to a 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. 65. 32258065 18. 52935128 18. 37931358 n= 62. x2 = 285500. 4¬5/6 ¬ 4. 833333333 29/6 0. 333333333 1/3 SIMP SIMP * If you do not know a common factor, press =. [. . . ] 68 g (0. 150 lb) (Including batteries) Accessories: Batteries × 2 (installed), operation manual, quick reference card and hard case. Calculations: Calculation Ranges · Within the ranges specified below, this calculator is accurate to ±1 of the least significant digit of the mantissa. However, a calculation error increases in continuous calculations due to accumulation of each calculation error. (This is the same for yx, x¿ y, etc. [. . . ]