Datexx DS-700 manuale d’uso

Owner's Manual SCIENTIFIC CALCULA T OR DS-700 Please read bef ore operating the unit[...]

This Date xx DS-700 Scientific Calculator is designed f or a v ariety of scientific, statistical and computer uses. It provides man y impor tant functions necessar y f or comple x cal- culations. FEA TURES Remov ab le protectiv e cov er doub les as a base f or the calculator . Large easy to read LCD (Liquid Cr ystal Displa y). Binar y-Octal-He xade[...]

HYP Hyperbolic function designation symbol Appears when a h yperbolic function is designated. DEG Degree mode symbol Appears when degree mode is desig- nated or shows that the angular mode of the conv erted result is in degrees. RAD Radians mode symbol Appears when radian mode is desig- n a t e d o r s h o w s t h a t t h e angular mode of the conv[...]

SETTING UP DISPLA Y FORMA T Display Format Press T AB ke y to change f ormat from floating point to scientific notion Change to scientific notion Change to floating point Setting Decimal P oint Press 2ndF , T AB and Number of digit Example: Decimal P oint 4 BIN Binary mode symbol Appears when the binar y mode is set or the displa yed result is a bi[...]

Example: Decimal P oint 6 Please note: Once the decimal point is set, it will remain after power is off , to resume decimal point 2 (def ault), Please set the decimal point to 2 again. Example: Setting back to Decimal P oint 2 OPERA TING THE CALCULA T OR P o wer off key Press to turn off the calculator . A utomatically turns off 8 min- utes after l[...]

Used with trigonometr ic func- tions f or arc h yperbolic calcu- lations. T rigonometric / Inver se T rigonometric function keys Press f or the desired trigono- metric function. Press 2ndF first f or inv erse tr igonometr ic functions. Display Format Exc hange / T abulation key Press to change displa y f or- mat from floating point to sci- entific [...]

Calculates the antilogarithm base e of the displa yed n um- ber . Common logarithm / antilog- arithm and hexadecimal number key Press to obtain the base 10 logarithm of the display ed number . He xadecimal number F k e y (HEX mode only). Press to obtain the base 10 antilogarithm of the display ed number . Real number enter / coor di- nate con ver s[...]

Right Shift / Complex num- ber mode key Press to delete the last num- ber ke y pressed. Press to set the comple x num- ber mode. Enter Exponent / Pi and Hexadecimal n umber key Press to enter a number in scientific notation. He xadecimal number A k e y (HEX mode only). Displa ys the v alue of Pi ( π ) Pi= 3.141592654 y /x √ y and Hexadecimal num[...]

Press to enter an open paren- thesis in the displa y . Press to e xchange the dis- pla yed n umber with the num- ber from the working register (x -> y) Close parenthesis / statisti- cal calculation key Press to enter a close paren- thesis in the displa y . In statisti- cal mode it displa ys the number of the samples entered. (n) Press to obtain [...]

Plus / Decimal number key Press f or addition. Press to conv ert the display ed number to a decimal number (base 10). Memory-in / statistical calcula- tion key Press to store the displa yed n um- ber into memor y . T o clear the memor y , press the ON/C ke y then the x-> m ke y . In statistical mode, press to obtain the mean value of the data. P[...]

ONE F ACT OR OPERA TIONS One-F actor operations require the entr y of only one mathematical function. The single f actor is entered into the calcula- tion when you press the function k e y . Y ou do not hav e to press = to complete the calculation. Some one-f actor functions include √ , cos, sin, tan and log. Example: sin 90˚ = 1 Enter 90 [ sin [...]

CORRECTING O VERFLO W ERRORS If a calculated result e xceeds the dis- pla y ability or the memor y capacity , the displa y stops and E appears in the displa y . Press [ ON/C ] to resume calculating. The range of calculated results and memor y capacity are within the range of 1 x 10 -99 to 9.9999999 x 10 99 An error also occurs if you try to divide [...]

SCIENTIFIC NO T A TION Calculate (72.5 x 10 20 = 1.75 x 10 20 ) (-4.7 x 10 -11 ) = -1.57978 x 10 32 If a result is displa yed in scientific notation, you can press [ F <--> E ] to conv ert the number to floating point and vice- v ersa. CONST ANT AND REPEA T When perf orming calculations, the last function and number entered are retained as a [...]

T o calculate cos-1 0.5 = 66.666666 grads T o calculate tan π /5 = 0.72654253 T o calculate sin 30˚ x √ 5 = 1.118034 T o calculate 90˚ = 1.5707963 radians = 100 grads PERCENT A GE LOGARITHM AND EXPONENTIAL TRIGONOMETRIC CALCULA TIONS Repeatedly press DEG to select degrees , radians or gr ads as the trigonometr ic unit. Display To Calculate 6% [...]

APPLICA TIONS AND EXAMPLES BUSINESS Calculate the future value of a $1000 in v est- ment compounded annually at a rate of 6% f or 7 years . FV = p (1+i )n = 1000 (1+0.06) 7 = 1503.63 PHYSICS If a ball is thrown upwars with a v elocity of 75 feet per second, what is its v elocity at the end of 1.6 seconds ( g = 32.2 ft/sec2) ? V elocity: V = V o - g[...]

ELECTRONICS Amplifier Gain Calculate the v alue of A v V oltage gain A V = 20 log V o/ Vi = 20 log 3 1x10 -3 =69.54242509dB In another right tr iangle, A = 6 f eet and C = 15 degrees . Determine the value of a, b and B. sin a = A /C sin a = 6 / 15 = 0.4 sin-1 .4 = 23.58 a = 23.58 degrees b = 90 - 23.58 = 66.42 degrees cos a = B / C cos 23.58 = B /1[...]

REPLA CING THE B A TTERIES This calculator is powered b y two internal batteries LR 44 or A76. If the display gets dim or calculations slow do wn the batteries should be replaced. T o replace the batteries: 1.Remov e the six scre ws on the back of the calculator and lift off the back co v er . 2.Replace the two batteries located near the tip of the[...]

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 defective unit with pr oof of purchase and a check or money order fo[...]