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Datexx DS-700-30Xa manual

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Table of contents for the manual

  • Page 1

    O WNER’S MANUAL Please read before using BIG Display 12 - Digit Scientific Calculator with Fractional and Statistical Functions D S - 7 0 0 - 3 0 X a[...]

  • Page 2

    T ype of logical calculations and truth tables . . 16 Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 T rigonometric Functions . . . . . . . . . . . . .20 Statistical Calculations . . . . . . . . . . . . . . .21 Applications and examples . . . . . . . . . . . [...]

  • Page 3

    Keys ON : T urns the power ON and resets the calculator . The power turns off automatically after a few minutes if no k ey is pressed. The memory is not reset when ON is pressed. OFF : Press to turn OFF the calculator . C/CE : Press to delete a number in the display, Press twice to clear the current calculation. EXP : Exponent key . Press to enter [...]

  • Page 4

    Basic Functions +, –, x, ÷ keys Press keys as written for basic functions. % key Press for percentage calculations, Add-on and discounts. (…) Open/Close parenthesis keys Press for up to 6 lev els of parenthesis when performing complex calculations. Up to 15 consecutiv e open parenthesis may be used at one time. Notes:Open and close parenthesis[...]

  • Page 5

    Memory Keys M+ Press to add the displayed number to the inde- pendent memory Min Press to store the displayed number in the inde- pendent memory MR Press to recall the number in memory . X–>M Display/Independent Memory Exchange k ey . Press to exchange the displayed number with the contents of the independent memory and vice versa. Binary/Octa[...]

  • Page 6

    Statistical keys V ariable Entry (DA T A) V ariable Correction (DEL) key S x key n key s n key s n-1 key S x 2 key x + key Logical calculation keys Used for Logical calculations in Binary, Octal and Hexadecimal modes AND OR XOR XNOR NO T Display Indicators The following indicators will appear when the respecti ve function is selected Display Mode I[...]

  • Page 7

    Mode Hexadecimal Statistical +, -, x, ÷ 6 levels 3 levels ( ) y y Constant y y Percentage n y Fractions n n Memory y y Function 1 variable function n y 2 variable function n y Raise to Power n n Statistical n y Logical y n Complement (NEG) y n +/– n y Display (FLO, SCI, ENG) n y Decimal (Fix) n y Angle n y Reverse y y 13 Display Mode SD Statisti[...]

  • Page 8

    Entering Statistical data Ex. 1: 2 D A T A 3 DA T A 4 D A T A Ex. 2: 125 LOG D A T A 100 LOG DA T A Ex. 3: (123 M+ MR D A T A) Making corrections C/CE clears the last digit pressed. INV DEL deletes the last DA T A entered. Output of Statistical Calculation Results Output Operation Arithmetic mean INV x + Standard Deviation of sample INV s n-1 Stand[...]

  • Page 9

    T ruth T ables AND INPUT OUTPUT A B X 1 1 1 1 0 0 0 1 0 0 0 0 OR INPUT OUTPUT A B X 1 1 1 1 0 1 0 1 1 0 0 0 XOR, XNOR INPUT OUTPUT A B X OR X NOR 1 1 0 1 1 0 1 0 0 1 1 0 0 0 0 1 NO T INPUT OUTPUT A X 1 0 0 1 17 P erforming Logical Calculations Logical Calculations are performed with Boolean Algebra. V ariables in logical calculations ha ve only two[...]

  • Page 10

    Examples Constant Calculations EX. 4 + 5 = 5 + 5 = 6 + 5 = Press 4 + 5 = 5 = 6 = Binary MODE 2 10101011 + 1100 + 1110 = 11000101 Octal MODE 3 654 + 321 = 1175 741 – 357 = 362 Hexadecimal MODE 4 AAA + bb + C = b71 dEF - EFE = FFFFFFFEF1 FEDC x A9 = A83F3C Binary/Octal/Hexadecimal mode calculations may be mixed. 19 Errors The calculator will o verf[...]

  • Page 11

    Hyperbolic Calculations Cosh34 = 3 4 HYP cos (2.917308713 x 10 14 ) In verse Hyperbolic Calculations Sinh-1 1.5 x 10 25 = 58.66323961 1 . 5 EXP 2 5 INV HYP sin (58.66323961) Statistical Calculations D A T A Enters statistical data Displays Sum of the data n Displays the number of data s n-1 Displays the Standard deviation sample Displays the Square[...]

  • Page 12

    CIVIL ENGINEERING In this right triangle,A = 5.7 feet and a = 30 degrees . Determine the value of C . sin a = A / C sin 30 degrees = 5.7 / C C = 5.7 / sin 30 degrees C = 5.7 / .5 C = 11.4 Mode Press Displa y DEG 5.7 [÷] 5.7 30 [sin] .5 [=] 11.4 In this right triangle, A = 6 feet and C = 15 feet. Determine the values of a, b and B . sin a = A / C s[...]

  • Page 13

    REPLACING THE B A TTER Y If the calculator slows down when using the battery, the battery is weak and should be replaced. 1. Remo v e the 6 screws on the bottom panel and remo ve the panel. 2. Remo ve the old batteries. 3. Insert the new batteries (Radio Shack type RS-389 Cat. No. 23-101) following the polarity of the old battery . 4. Replace the b[...]

  • Page 14

    Datexx Limited W arranty This product is warranted against defects for 1 year from date of purchase. W ithin this period, we will replace or repair it, at our option, without charge for parts and labor , with the exception of accessories such as batteries, wallets, etc. Return the defecti v e unit with proof of purchase and a check or money order f[...]

  • Page 15

    ©2001 Datexx - A Division of T eledex Inc. www.datexx.com PRINTED IN CHINA 02/01 . DS-700-30Xa[...]