Datexx DS-834 User Manual
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Datexx DS-834 User Manual

Datexx ds-834: user guide
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General guide .................................................. E - 2
Power supply ......................................................................... E - 2
The keyboard ......................................................................... E - 2
Display symbols .................................................................... E - 3
Display formats ..................................................................... E - 3
Order of operations ................................................................ E - 4
Correction .............................................................................. E - 5
Accuracy and Capacity .......................................................... E - 5
Overflow / Error conditions .................................................... E - 7
Basic calculation ............................................. E - 8
Mixed arithmetic calculation ................................................. E - 8
Parentheses calculations ...................................................... E - 8
Constant calculation .............................................................. E - 8
Percentage calculation .......................................................... E - 9
Memory calculation ............................................................... E - 9
Scientific calculation ..................................... E - 10
Reciprocal, Factorial ........................................................... E - 10
Square, Square / Cubic Root, Power, Root ........................ E - 10
Logarithms and Antilogarithms ........................................... E - 10
Fraction calculation ............................................................. E - 10
Angular units conversion ..................................................... E - 11
Hyperbolic / Inverse hyperbolic functions ........................... E - 12
Rectangular / Polar coordinates .......................................... E - 12
Permutations, Combinations .............................................. E - 12
Sexagesimal
Base-n mode calculation .................................................... E - 13
Complex numbers calculation ............................................ E - 14
Random numbers and Exchange key. ................................ E - 14
Unit conversion .................................................................... E - 15
Statistics calculation ..................................... E - 15
Computing single variable statistics ................................... E - 15
Viewing statistics data ........................................................ E - 16
Adding a data entry ............................................................. E - 17
Editing statistics data .......................................................... E - 17
Delete error .......................................................................... E - 18
Weighted data entry method ............................................... E - 18
Contents
Decimal conversion .................................. E - 13
E - 1

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Summary of Contents for Datexx DS-834

  • Page 1: Table Of Contents

    General guide ... E - 2 Power supply ... E - 2 The keyboard ... E - 2 Display symbols ... E - 3 Display formats ... E - 3 Order of operations ... E - 4 Correction ... E - 5 Accuracy and Capacity ...

  • Page 2: General Guide

    Power supply On or Off : To turn the calculator on, press [ ON/C ]; to turn the calculator off, press [ 2ndF ] [ OFF ]. Auto power-off function : This calculator automatically turns off it when not operated for approximately 15 minutes.

  • Page 3: Display Symbols

    HEX : Hexadecimal mode ED : Edit mode HYP : Hyperbolic mode Display format The calculator can display numbers in four formats : floating point, fixed point, scientific, and engineering. Floating point display format The floating point format displays numbers in decimal form, using up to 10 digits.

  • Page 4: Order Of Operations

    (Ex.) : Fix the display at 2 decimal places, then key in 3.256 Step 1 : press [ 2ndF ] [ TAB ] 2 Step 2 : key in 3.256 [ = ] On the contrary, if fewer than the selected number of decimal places is keyed, it will be padded with trailing zero.

  • Page 5: Correction

    ± 99 or integers between – 9999999999 and 9999999999. Numbers used as input must be within the range of the given function. The range for each of the calculator’s functions is given in the following pages. Functions sin x, cos x, tan x √, X!, %, RND, ENG, →。...
  • Page 6 x, cos sinh x, cosh x tanh x sinh cosh tanh log x, ln x √ 1 / X √ R → P P → R →。，，， 。，，，→ Rad：│ X │＜ 2.5 x 10 Grad：│ X │＜ 5 x 10 however, for tan x Deg：│...

  • Page 7: Overflow / Error Conditions

    √ nPr, nCr STAT → DEC → BIN → OCT → HEX Overflow / Error conditions A symbol “ E ” are indicated on the display when any of the following conditions occur and further calculation becomes impossible. Just press [ ON/C ] to release those overflow or error indicator and the subsequent calculation can then be performed.

  • Page 8: Basic Calculation

    (Note) : It is unnecessary to press the [ ) ] key before the [ = ] key. Constant calculation The calculator enables you to repeat the last number entered or the last operation executed by pressing [ = ] key.

  • Page 9: Percentage Calculation

    96 ÷ 8 = ? 75 ÷ 8 = ? (1.2 x 10 ) ÷ 8 = ? Percentage calculation 30% of 120 = ? 70% of 120 = ? 88 is 55% of what number = ? 30% add-on of 120 30% discount of 120 Memory calculation You should keep the following rules in mind when performing...

  • Page 10: Scientific Calculation

    Before performing the following calculation, check to see that your calculator is fixed at 2 decimal places display format. Reciprocal, Factorial 1.25 5! = ? Square, Square / Cubic Root, Power, Root √ √ 27 + √ 72 = ?

  • Page 11: Angular Units Conversion

    90 °(deg) = ? (rad) = ? (grad) Trigonometric / Inverse trigonometric functions When using those key, make sure the calculator is set for the angular unit you want. 3 sin 85 ° = ? π cos (...

  • Page 12: Hyperbolic / Inverse Hyperbolic Functions

    Rectangular / Polar coordinates Rectangular Coordinates • P( x, y ) (Note) : When using those key, make sure the calculator is set for the angular unit you want. Converting from Rectangular to Polar If a = 5 and b = 6 , what are r and θ?

  • Page 13: Base-N Mode Calculation

    7 items? Sexagesimal The calculator enables you to converts the sexagesimal figure (degree, minute and second) to decimal notation by pressing [。 。 。 。 。 ， ， ， ， ， ，，→ ，，→...

  • Page 14: Complex Numbers Calculation

    Complex numbers calculation Select the complex numbers mode by pressing [ CPLX ] key and make sure “ CPLX ” indicator appears on the display. The calculator enables you to add, subtract, multiply, and divide complex numbers. Complex numbers are generally represented as a + b i, where a is a real and b is imaginary.

  • Page 15: Unit Conversion

    Unit conversion 12 ln = ? cm 98 cm = ? ln (Note) : The operating procedure for unit conversion key, [ ℉ ℃ ], [ mmHg is similar to the above example. Computing single variable statistics Select the mode by pressing [ STAT ] key and make sure “ STAT ” indictor appears on the display.

  • Page 16: Viewing Statistics Data

    σ = ? CP = ? CPK = ? (Note) : The calculator keeps a record of all the entries you make and these entries are retained even if auto power-off or turning off, unless exiting STAT mode. Viewing statistics data Pressing [ DATA ] or [ = ] key under ED mode can view the statistics data you have entered.

  • Page 17: Adding A Data Entry

    (Ex.3) : Add data 9 = 10 to Ex.1 Step 1 : Press [ DATA ] 10 Step 2 : The calculator updates the statistics as you enter Editing statistics data (Ex.4) : Based on Ex.1, correct data 1 = 2 as data 1 = 3 Method 1 : Press 2 [ 2ndF ] [ DEL ] 3 to overwrite.

  • Page 18: Delete Error

    Delete error (Ex.7) : If you enter and delete a value that isn’t included in the stored data by mistake, “dEL Error ” appears, but the previous data are still retained, for example, delete 7 based on Ex.1. Step 1 : Press 7 [ 2ndF ] [ DEL ] Step 2 : Press any key to clear it Step 3 : Enter ED mode, then view data by [ DATA ] or (Ex.8) : Based on Ex.1, enter 5 x 5 and delete it.

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