Commodore SR8120D User Manual Download | Manualshive

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Summary of Contents for SR8120D

Page 1: ...commodore Models SR8120D SR8140D SR890D Scientific Electronic Calculators Owners Manual ...

Page 2: ...y 9 Four Function Arithmetic 10 Chain Calculations 10 Correct ing Operations 11 F Key 12 Using the Memory 13 Chain Calculations Using the Memory 14 Exponent Key 15 Power and Rool Keys 16 Chain Calculations Involving Power Key 16 Binary to Decimal Conversion 17 Amorlization Using Power and Memory 18 Hypotenuse Calculations 19 ...

Page 3: ...roper Operation Over low Underflow Appendix B Operating Accuracy Appendix C Power a AC Operalion b Battery Operation c Adapter Data 2 Page 20 21 24 24 25 26 27 27 27 28 29 29 30 Description Page Appendix 0 Service Information a Low Power 31 b Shipping Instructions 31 c Temperature Parameters 31 Appendix E Guarantee 32 Sales and Service Centers 33 3 ...

Page 4: ...n 1 G STO 2 80000 00000 KEY INDEX This index permits quick page location of the description and or the fi rst use of each function key C 9 10 x 10 10 10 11 11 12 13 13 13 13 15 16 5 lID 10 sin 1 cos tan 16 20 21 21 21 24 24 24 24 24 24 24 ...

Page 5: ...ents alike It has been developed as an easy to understand easy to operate machine Please read through the pages of this manual care fully Become familiar with the keyboard and its charac teristics Work through the examples 6 They have been designed to give you a thor ough understanding of all functions Profici ency is gained by practice Once you discover how easy your mini computer is to operate i...

Page 6: ... notation 6 666666666 01 8 sign of exponent or blank implies positive exponent field two digits maximum Entry A number the mantissa is entered just as written using the keys 0 Ihrough 9 The sign of the mantissa can be entered at any time during a numerical enlry by pres sing the change sign key The sign of the exponent can be Changg pressing the change sign key aUer the key enter exponent key has ...

Page 7: ...ed Enter 5 10 Enter Read Explanation 3 2 4 The result of the division 12 5 is displayed and divide is entered 0 3 Enter 3 8 The result of 3 4 3 which is 8 in display CORRECTING OPERATIONS Example Calculate 3 x 4 Enter Read Explanation 3 3 Enler 3 We wish to multiply but entered by mistake x 3 Enter the correct function key 4 4 Now enter 4 12 The result 013 x 4 is displayed In this manner any of th...

Page 8: ...ore keys refer to the two memory registers and they store data for future use When mliII is pressed the value currenlly on the display will be copied into Memory Register 1 Similarly when the iii key is as a prefix to the memory key the displayed data is copied into Memory Reg ister 2 Any data stored in the register prior to pressing the respective STO key will be lost This is referred to as writi...

Page 9: ...a zero value Both memory registers are cleared at power on CHAtN CALCULATIONS USING MEMORY Examples Enter Read CD 3 x 5 x 4 6 EiiII 10 The result of the calculation 10 is dis played and stored in Memory 1 for future recall 14 Enter Read 3 S IimII 18 The value in Memory 1 10 is added to 8 and the result is displayed Memory 1 is unaffected o 3 x 5 x 4 6 n5TO 2 10 The result of the calculation is dis...

Page 10: ...hain calculation involving Y key Calculate 3 5 x3 4 for x 4 Enter Read Explanation 3 x 3 Enler 3 and multiply 4 Enter 4 as the base 5 5 Enter 5 as the power 3072 Calculate and display 3 4 and enter subtract 4 Enter 4 t e base 16 t l I f Enler Read Explanation 3 3 Enter 3 the power 3008 Calculate and display 3 4 5 4 3 enler add 4 3012 3 4 5 4 3 4 3012 o Binary to det imal conversion Convert the bin...

Page 11: ...lculate 1 I and enter it as the base 240 1 240 Enter the number of months change the sign calculate I I and subtract 1 1 1 0 833587156 Store 1 1 1 in memory Enter Read 09 7 12 0 0075 Calculate the monthly interest and multiply 20000 Calculate PV Enter divide IiIil I 150 179 945191 The dollar amount necessary to amortize a 20 000 mOrlgage in 20 years at9 annual interest Hypotenuse Calculations 5 3 ...

Page 12: ...ad Explanation III r 511 842297 3V Enter 4 as the base 3 7 999178546 Calculate the cubic root of and display result The sphere has a radius of approximately 8 meters TRANSCENDENTAL FUNCTIONS Your scient ific calculator will perform common and natural Naperian logarithmic and inverse logarithmic functions It also calculates the three trigonometric functions and their in verses Each of these keys op...

Page 13: ...nh X h In 2 1 Enter 5 1m 1 5 Read Elplanation 0 5 1 5 22 Store 1 5 in Memory 1 Calculate t 5 enter divide Enter Read Elplanalion IiI l I 3 Calculate 1 5 I lI 1 098612289 Calculate In 1 5 1 5 0 549306144 Calculate rl 5 arc tan 2 1 5 Calculate the hyperbolic sine of 5 Equation Enter ex e slnhx _ Read Elplanation 1 648721271 Calculate and dis play the expenen tial function of 5 e 5 and enter 5 iii e ...

Page 14: ...in diU mode when turned on Pressing the key shills your calculator to radian mode lights a deci mal point in the exponent liald end converts the value on display from degrees to radians Pressing I 1lIagain sh ilts the calculator back to degree moqe and converts the display in degrees Input range for sine cosine and tangent is 0 360 Example Degree Mode Ent8f 30 I sin I Read 3ll 0 5 30 24 Enter Read...

Page 15: ...DIX A Error Condition An error condit ion results when an improper operation is performed or when the result of an operation overftows or under flows the absolute range of the calculator When an error cond ition occurs the leiter E is displayed Press the clear key C toclear the error condition Improper Operation x Y where Y 0 y wherey O W where X O X where X 0 log X where X 0 Sin l X where X I 1 c...

Page 16: ...5xl0 On Nth display digit assuming a lett justified 10 digit result APPENDIX C Disposable Satlery Model 0 Your calculator uses a standard nine volt bat tery type 006P available at most drug depart ment and camera stores To operate discon nect the adaptor cord and turn power switch ON an interlocking switch in the AC socket will prevent battery use if the plug remains connected When 1M ballery weak...

Page 17: ...APPENDIX C Use proper Commodore CBM adapter for AC operation Adapter 640 or 707 North America Adapter 708 England Adapter 709 West Germany 30 ...

Page 18: ... from fire accident neglect abuse or other causes beyond our control The guarantee does not cover the repair or replacement of plastiC housings or transform ers damaged by the use of improper oltage Nor does it cover the replacement of expend able accessories and disposable bat eries The guarantee will also be automatically voided if your machine is repaired or tampered with by any unauthorized pe...

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