User manual SHARP EL-6420

[. . . ] Press NO to clear the independent memory ("M" symbol will disappear). @; : Adds the result to the value in the memory. N3*5O 30 + (3 × 5) = (3 × 5) × 4 = 20+10­5= 121+13×2= +) 21×3­16= (Total) 30 +R= R* 4 = N 20 + 10 - 5 O 121 + 13 * 2 @; 21 * 3 - 16 @; R NO (6×103)÷(2×10-4)= ( 6 E 3 )/ ( 2 E­ 4 )= 15+8_ 15_ 15­3_ 312. 13×24 360. Constant Calculations In the constant calculations, the addend becomes a constant. For multiplication, the multiplicand becomes a constant. 245+60= 12+60= 150-20= 250-20= 200÷4= 180÷4= 15×3= 15×10= N 245 + 60 = N 212 + 60 = 150 - 20 = 250 - 20 = 200 / 4 = 180 / 4 = 15 * 03 = 15 - 10 = 15. M 45. M 60. M 25. M 147. M 47. M 219. M 305. [. . . ] : Recalls the value stored in last answer memory. 4 ÷ 5 = 0. 8. . . (A) N 4 / 5 = 4 × (A) + 60 ÷ (A) = 4 *@?+ 60 / @?= Functions · For each example, press N to clear the display. · The results of inverse trigonometric functions are displayed within the following range: = sin-1x, = tan-1x ­90° 90° = cos-1x 0° 180° 0. 8 78. 2 DISPLAY Symbol 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. While a calculation result is displayed in the floating point system, press @´ to display the result in the scientific notation system. Pressing @´ once again will bring back the floating point system. To enter a number in scientific notation, press E. (1. 2 × 1020) × (1. 5 × 105) 1. 2 E 20 * 1. 5 E 5 = 1. 8×1025 sin30° = cos60° = tan45° = sin­10. 5 = FRACTION CALCULATIONS 0. 5 0. 5 1. 34. 2 4­ = 3 1 4­ = 2 N2Ø3= 41Ø2= Mantissa Exponent Ns 30 = u 60 = t 45 = @S 0. 5 = @U 0. 5 = @T 1 = 3 @L + 5 @L= 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. 2/3 4¬1/2 ¬ (All symbols will not be displayed simultaneously, as shown above. ) / 2ndF SIMP M : Appears when the entire equation cannot be displayed. : Appears when @ is pressed, indicating that the functions shown in orange are enabled. : Indicates that a fraction can be simplified further, or expressed with a lower denominator. y < 0: x = 2n­1 (0 < |x| < 1: ­ = n, x 0)*, x ­10100 < 1 In |y| 230. 2585092 ­ x |x| < 10 50 Automatic Power Off Function This calculator will turn its power off automatically if no key is pressed for about 10 minutes. * If you cannot come up with a common factor, press =. [Manual Simplification] 1 + -- = N 1 Ø 3 + 2 Ø 12 = SIMP 6/12 ­2 3 12 ªFACTOR?SIMP 6/12 SIMP 23/6 2 =* ª3= 1/2 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== 4¬5/6 ¬ 4. 833333333 29/6 0. 333333333 1/3 SIMP SIMP y SPECIFICATIONS Calculations: General arithmetic operations (add, subtract, multiply, divide, operations with constants, memory operations, fraction operations, function operations, etc. ) 16 calculations 8 numeric values 3V ¶ (DC): Alkaline batteries (LR44) × 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. 5 + -- = N 5 Ø 6 + 1 Ø 14 = ­1 6 14 =* SIMP 38/42 1. 2 12/10 1¬2/10 ¬ 1. 2 1. 65 x ¿y Pending operations: Power source: Power consumption: Operating time: x 2 ¿x x­1 0 x < 10100 |x| < 10100 (x 0) SIMP1¬65/100 ¬ 1¬13/20 ¬ * n: positive integers BATTERY REPLACEMENT ERROR AND CALCULATION RANGES Errors An error will occur if an operation exceeds the calculation ranges, or if a mathematically illegal operation is attempted. When an error occurs, pressing < (or >) automatically moves the cursor back to the place in the equation where the error occurred. Edit the equation or press N to clear the equation. Notes on Battery Replacement Improper handling of batteries can cause electrolyte leakage or explosion. Be sure to observe the following handling rules: · Replace both batteries at the same time. · When installing, orient each battery properly as indicated in the calculator. · The factory-installed batteries may be exhausted before they reach the service life stated in the specifications. 19/21 * If = is pressed instead of ª, the number will automatically be reduced down to its simplest form with the greatest common factor. 0. 0006 W Approx. [. . . ] Operating temperature: 0°C ­ 40°C (32°F ­ 104°F) External dimensions: 78. 6 mm (W) × 144 mm (D) × 10. 5 mm (H) 3-3/32" (W) × 5-21/32" (D) × 13/32" (H) Weight: Approx. 68 g (0. 150 lb) (Including batteries) Accessories: Batteries × 2 (installed), operation manual, quick reference card and hard case. Reducing to its lowest denominator Prior to pressing the = key, a common denominator can be set to organize calculations. 1­ ­+1= 34 N1Ø3+1Ø4 1/3+1/4_ ªDENOM. ?SIMP 28/48 48 =* 16/48+12/48_ SIMP 28/48 = Error Codes and Error Types Syntax error (Error 1): · An attempt was made to perform an invalid operation. 2 +- 5 = Calculation error (Error 2): · The absolute value of an intermediate or final calculation result equals or exceeds 10100. [. . . ]