2 - Digit Scientific Calculator with Fractional and Statistical Functions Owner's Manual DS-700-30Xa

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OWNER’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

Summary of content (15 pages)

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OWNER’S MANUAL DS-700-30Xa Please read before using BIG Display 12 - Digit Scientific Calculator with Fractional and Statistical Functions
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Contents Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Type of logical calculations and truth tables . .16 Features Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 Mode Select Keys . . . . . . . . . . . . . . . . . . .5 Trigonometric Functions . . . . . .
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FEATURES Large 10 + 2 Digit Display Calculates Mixed and Improper Fractions Up to 15 levels of Parenthesis Binary / Octal / Decimal / Hexadecimal Calculation Modes Common and Natural Logarithms Keys ON: Turns the power ON and resets the calculator. The power turns off automatically after a few minutes if no key 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.
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Display Mode Keys Basic Functions FLO – SCI – ENG Press to select the display mode. +, –, x, ÷ keys Press keys as written for basic functions. FLOATING: Floating Point Ex. 123456 SCI: Scientific Exponential Ex. 1.2345606 ENG: Engineering Exponential Ex. 123.45604 Display Range Floating Point : 10 -9 –> 1010 Scientific: 10 -99 –> 10 100 Engineering Exponential 10 -99 –> 10 100 Mantissa: Less than 100 % key Press for percentage calculations, Add-on and discounts.
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Mixed Fractions Memory Keys Enter: Integer ab/c Numerator ab/c Denominator Ex. 4 ab/c 6 ab/c 7 = 4 6/7 4_ 6_| 7 is displayed M+ Up to 3 digits may be used for the Integer, numerator or denominator up to a total of 8 digits. Press ab/c to change the displayed number from a fraction to a decimal number. d/c Mixed/improper fraction key Press to convert mixed fractions to improper fractions: Press Displayed 10 ab/c 3 10 _| 3 INV d/c = 3 _ 1 _| 3 INV d/c 10 _| 3 X<–>Y key.
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Function Keys ARCHYP – ArcHyperbolic key HYP – Hyperbolic key sin - Sine key cos - Cosine key tan - Tangent key In - Natural Logarithm key ex - Exponential function key x2 - Square key sin–1 - Arc Sine key cos–1 - Arc Cosine key tan–1 - Arc Tangent key log - Common Logarithm key 10x - Common exponential key √ - Square Root key 1/x - Reciprocal key DMS – DEG Sexadecimal -> Decimal conversion key R–>P, P–>R Rectangular->Polar Coordinate key xy - Raise to power key π - Pi key 3√ - Cubic Root key x1/y - Multi
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Display Mode SD DEG RAD GRAD ( ) Statistical mode Degree Mode Radian mode Gradient mode Calculation in Parenthesis Calculations modes Mode Decimal +, -, x, ÷ 6 levels ( ) 15 levels Constant y Percentage y Fractions y Memory y Functions 1 variable y 2 variable y Raise to Power y Statistical y Logical y Complement (NEG) n +/– y Display (FLO, SCI, ENG) y Decimal (Fix) y Angle y Reverse y 12 Binary Octal 6 levels 6 levels 15 levels 15 levels y y n n n n n n n n n y n y n n n n y n y n n n n y n n n y
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Calculation priority Entering Statistical data Calculation priority is automatically determined by the calculator. Algebraic expressions are entered as they would be written. Single variable functions and calculations in parenthesis have a higher priority than basic functions like +, -, x, ÷. During calculations lower priority calculations are stored in the stack memory and processed in turn. Six levels of calculations may be stored in stack memory. Ex. 1: 2 DATA 3 DATA 4 DATA Ex.
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Performing Logical Calculations Truth Tables Logical Calculations are performed with Boolean Algebra. Variables in logical calculations have only two values, True and False. Truth is represented by a “1” and False is represented by a “0”. AND For Octal or Hexadecimal calculations, the values are converted to Octal or Hexadecimal. Type of logical calculations and truth tables A INPUT B 1 1 0 1 0 1 1 0 0 0 0 0 OR AND: Product of propositions Produces 1 when all input values are 1.
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Errors Examples The calculator will overflow if:: Constant Calculations • Calculation or contents of the memory are outside the range of 1 x 10 –99 to 9.999999999 x 10 EX. 4 + 5 = 5 + 5 = 6 + 5 = –99 Press 4 + 5 = 5= 6= • When dividing by 0. • When data exceeds the range of any function or statistical data Binary MODE 2 10101011 + 1100 + 1110 = 11000101 • In Statistical calculation mode, if sn-1 is calculated with only one data • When finding x,sn and sn-1 when n=0.
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Trigonometric Functions Press Displayed Sin53º [Mode][DRG] DEG 53 sin (0.79863551) Tan 65grad[Mode][DRG] GRAD 65 tan (1.631851687) Cos22 [Mode][DRG] RAD 22 cos (-0.999960826) Inverse Trigonometric Functions Sin–1 0.3 [DEG] . 3 INV sin-1 Cos-1 0.8 [DEG] . 8 INV cos-1 Logarithmic Functions Log 123= 1 2 3 log In 123= 1 2 3 In Exponential calculations e22 = 2 2 INV e x 2.3 10 = 2 . 3 INV 10 x Hyperbolic Calculations Cosh34 = 3 4 HYP cos (2.917308713 x 1014) Inverse Hyperbolic Calculations Sinh-1 1.
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CIVIL ENGINEERING APPLICATIONS AND EXAMPLES BUSINESS Calculate the future value of a $1000 investment compounded annually at a rate of 6% for 7 years. FV = p (1+i)n = = 1000 (1+0.06)7 1503.63 Press Display 1 [+] 0.06 [=] [xy] 7[=] [×] 1000 [=] 1.503630259 1503.630259 PHYSICS If a ball is thrown upward with a velocity of 75 feet per second, what is its velocity at the end of 1.6 seconds (g=32.2 ft/sec2)? Velocity: Height: V = Vo – gt = 75 – (32.2 × 1.6) = 23.48 ft/sec.
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Mode DEG Press Display 0 [INV][x<–>m] 0 6 [÷] 6 15 [=] 0.4 [INV] [sin–1] 23.57817848 [Min] M 23.57817848 90 [–] [MR] [=] M 66.42182152 0 [INV][x<–>m]23.57817848 23.58 [cos] 0.916502421 [×] 15 [=] 13.74753633 REPLACING THE BATTERY If the calculator slows down when using the battery, the battery is weak and should be replaced. 1. Remove the 6 screws on the bottom panel and remove the panel. 2. Remove the old batteries. 3. Insert the new batteries (Radio Shack type RS-389 Cat. No.
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CARE AND MAINTENANCE This scientific calculator is a carefully designed and crafted electronic device. With the proper care, you can enjoy it for years. • Keep the calculator dry and away from liquids. If it gets wet, dry it immediately with a soft cloth.If water enters the calculator, wait for the water to evaporate before using the calculator. • Store the calculator in moderate temperatures. Excessive heat or cold can damage the calculator. • Do not drop or strike the calculator.