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Sharp EL-5230, EL-5250 Application Examples, Some like it hot Celsius-Fahrenheit conversion

Models: EL-5230 EL-5250

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	Contents
Entering the PROG mode	75
Selecting the NORMAL program mode or the NBASE
program mode	75
Programming concept	75
Keys and display	76
Creating a NEW Program	76
Creating a NEW program	76
Use of variables	77
Programming Commands	79
Input and display commands	79
Flow control	81
Equalities and inequalities	82
Statistical Commands	83
Editing a Program	84
Error Messages	85
Deleting Programs	86
Chapter 8: Application Examples	87
Programming Examples	87
Some like it hot (Celsius-Fahrenheit conversion)	87
The Heron Formula	89
2B or not 2B (N-base conversion)	91
T test	93
A circle that passes through 3 points	95
Radioactive decay	97
Delta-Y impedance circuit transformation	99
Obtaining tensions of strings	102
Purchasing with payment in n-month installments	104
Digital dice	106
How many digits can you remember?	107
Calculation Examples	110
Geosynchronous orbits	110
Twinkle, twinkle, little star (Apparent magnitude of stars)	111
Memory calculations	113
The state lottery	114

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Sharp EL-5230 Application Examples, Some like it hot Celsius-Fahrenheit conversion, How many digits can you remember?

Contents

PROGRAMMABLE SCIENTIFIC CALCULATOR EL-5230 EL-5250OPERATION MANUAL Page General Information Programmable Scientific CalculatorIntroduction Before You Get StartedChapter 2 General Information ContentsIntroduction Chapter 1 Before You Get StartedBinary, Pental, Octal, Decimal and Hexadecimal Operations N-base Chapter 3 Scientific CalculationsChapter 7 Programming Chapter 4 Statistical CalculationsChapter 5 Equation Solvers Chapter 6 Complex Number CalculationsHow many digits can you remember? Chapter 8 Application ExamplesPurchasing with payment in n-month installments Some like it hot Celsius-Fahrenheit conversionAppendix Introduction Operational Notes Example NORMAL MODEKey Notation in This Manual πRŒ˚-10Page Preparing to Use the Calculator Resetting the calculatorBefore You Get Started ChapterThe Hard Case Calculator layout Calculator Layout and Display Symbolsxy /r θ DisplayBUSY 2ndFMODE-1 ƒNORMAL ⁄STAT ¤PROG ‹EQN Selecting a modeWhat you can do in each mode Operating ModesEntering and solving an expression A Quick Tour8Œ‰3-7˚-10.5 Turning the calculator on and off110.4504172 8Œ‰3-7˚-10.5 8Œ‰3-7˚-10.5 = 110.4504172Editing an expression 8Œ‰3-7˚-10.5=NORMAL MODE NORMAL MODE 0. π NORMAL MODE 0. πRŒUsing variables 0. 2„ÒR1ı3πRŒH NORMAL MODEUsing simulation calculations ALGB πRŒ= 201.06192981ı3πRŒH R=z 1ı3πRŒH= 678.5840132 1ı3πRŒH= 670.20643281ı3πRŒH H=8 Example Using the solver functionAnsÒV 678.5840132 AnsÒV 678.5840132 V=1ı3πRŒH V=1ı3πRŒH H=z V=1ı3πRŒH V=z678.5840132 V=1ı3πRŒH H=z10.125 Other featuresR¬ 678.5840132 L¬ Memory clear key ¤STAT ‹RESETGeneral Information Clearing the Entry and MemoriesCursor keys Overwrite mode and insert modeEditing and Correcting an Equation 123456Delete key 3˚5+3˚2= 21. 3˚5+3˚23˚5+3˚2= 21. 3˚5+2 3˚5+3˚2= 35+2 3˚5+3˚2=Determination of the angular unit The SET UP menuSET UP ƒDRG ⁄FSE ¤ Setting the floating point numbers system in scientific notation0. 6ÒA Using MemoriesUsing alphabetic characters Using global variables1.25E-5ÒA1 0.0000125 Using local variables6. A= ¬ƒA¡¬ƒA¡ Using variables in an equation or a program0.0000125 A1= 1ıA¡-1000A=Global variable M Using the last answer memory3Œπ= 28.27433388 5Ans= 141.3716694Mode Using memory in each modeA-L, N-Z zALL DATA CL?z z YES¬DEL z z NO¬ENTERz z ALL DATA z z CLEARED! z z zResetting the calculator NORMAL MODEChapter NORMAL modeScientific Calculations Arithmetic operationsConstant calculations FunctionsjH$1.5 + ¤int Math menu Functionsƒabs ⁄ipart24∂Ωsec FunctionKey operations ResultDifferential function Differential/Integral FunctionsResult Integral functionExample Key operationsWhen performing integral calculations Random coin Random FunctionRandom numbers Random diceKey operations Angular Unit ConversionsChain Calculations Example0∂31∂1.5∂ Fraction Calculations4.833333333 4.641588834Binary, Pental, Octal, Decimal, and Hexadecimal Operations N-base 11001.b Time, Decimal and Sexagesimal Calculations y = Coordinate Conversionsr = x =Calculations Using Physical Constants λc, n Key operationsResult λc, pPrefix Calculations Using Engineering Prefixes100 @j6k 10 @j5eModify Function Changing the value of variables and editing an equation Solver FunctionTŒ=4πGMR Entering and solving an equationA˚B=C˚D A˚B=C˚DA˚B=C˚D D=z A˚B=C˚DA˚B=C˚D ERRORImportant notes CALCULATIONπRŒH= 785.3981634 Simulation Calculation ALGBEntering an expression for simulation calculation Changing a value of variables and editing an expressionBCsinA2 BCsinA2BCsinA2 B=z BCsinA2 C=5 BCsinA2= 7.5 Simulate an equation for different valuesChapter 3 Scientific Calculations 2BCsinA2 B=zBCsinA2= 7.071067812 BCsinA2=Saving an equation Filing EquationsEQTN FILE ƒLOAD ⁄SAVE ¤DEL SAVETITLE? SAVERINGDEL ¬º⁄RING º¤AREA-3 º‹CIRCUIT Loading and deleting an equationTITLERING DELETE¬DEL QUIT¬ENTER Page Chapter Statistical CalculationsInverse regression calculation Linear regression calculation Single-variable statistical calculationData correction Data Entry and CorrectionQuadratic regression calculation Data entryExample 30 d d dsx = Statistical Calculation Formulasσx = Σx 2 - nxChapter 4 Statistical Calculations Normal Probability CalculationsValues for Pt, Qt, and Rt are given to six decimal places Standardization conversion formulat = -0.5 →Rt ? Statistical Calculations Examples⋅10+50= x = 60 →Pt ?Result Key operationsx=3 → y=? D = D = Equation SolversSimultaneous Linear Equations a1x + b1y = c1 a2x + b2y = c2x = ? Z= D=x= 3.238095238 y=-1.638095238 x+ y- z =X¤-6.333333333 Quadratic and Cubic Equation SolversExample Example X⁄-1.233600307 X¤ 0.216800153 +1.043018296iComplex Number Entry Complex Number CalculationsChapter +5.i Selecting the NORMAL program mode or the NBASE program mode PROG modePROGRAM MODE ƒRUN ⁄NEW ¤EDIT ‹DEL Entering the PROG modeƒNORMAL ⁄NBASE Creating a NEW ProgramMODE TITLE? NORMALSLOPE NORMAL Y=M¡X+5 SLOPE NORMAL M¡=? Use of variablesExample 2. Entering the program COMMAND-1 ƒPrint ⁄Print ¤Input ‹Wait Programming CommandsInput and display commands Indicates the line is a remark Gosub Flow controlEqualities and inequalities Data Statistical CommandsSTAT STAT xyEditing a Program ERROR LBL DUPLICATE BREAK Error MessagesDeleting Programs PROGRAM MODE ƒRUN ⁄NEW ¤EDIT ‹DELDEL ¬º⁄AREA º¤TEMP º‹STAT TITLEAREA DELETE¬DEL QUIT¬ENTER TEMP NORMAL PROGRAM? Application ExamplesProgramming Examples Some like it hot Celsius-Fahrenheit conversionRunning the program PROGRAM MODE ƒRUN ⁄NEW ¤EDIT ‹DELA + B + C T = The Heron FormulaResult SIDE LENGTHSHERON NORMAL Example2B or not 2B N-base conversion NBASE NBASE PROGRAM?Key operations Program codeRunning the program x - m t = sx2 T testExample Result Program codeKey operations Running the programX 1 2+Y 1 2-X 2 2-Y 2 2X 2-X 3 - X 2 2+Y 2 2-X 3 2-Y 3 2X 1-X A circle that passes through 3 pointsX 1 2+Y 1 2-X 2 2-Y 2 2Y 2-Y 3 - X 2 2+Y 2 2-X 3 2-Y 3 2Y 1-Y 2X 1-X 2Y 2-Y 3 - X 2-X 3Y 1-YResult Program codeKey operations ExampleDECAY NORMAL PROGRAM? Radioactive decayExample T= YEARS DECAY NORMALORIGINAL MASS Mº=?Delta-Y impedance circuit transformation Key operations Program codeKey operations 1DELTA TO Y2Y TO DELTA Program codeA, B angles that strings make from perpendicular lines DMS Obtaining tensions of strings= -- = sin A + BExample 21.96623.761 T= ResultsP price of the product Purchasing with payment in n-month installmentsn n-month installment 1 - 1 + i -ni 0 S e PRICEPAYBYMNNORMAL Print SRunning the program Digital diceProgram code Key operationsHow many digits can you remember? Key operations Program codeKey operations Program codeRunning the program Geosynchronous orbits Calculation Examples23∂56∂4.09∂Ωse 86164.09 86164.09 AnsÒT 8.616TŒ=4πŒGM˚ R„ R=z 4.2177.424 Twinkle, twinkle, little star Apparent magnitude of starsResult 1Î0.4˚4.8-2. 89=4.8-log0.0003 0.4= ExampleResult DATA SET= 3. 7.95,108DATA DATA SET= DATA SET= 4. Í≈= 13254.15Memory calculations ExampleExample 50Ç6= 1589070015890700. 35∏5= 38955840 The state lotteryAppendix Battery ReplacementNotes on battery replacement When to replace the batteriesCautions Replacement procedurez NO¬ENTERz Automatic power off functionzALL DATA CL?z z YES¬DEL zThe OPTION display The OPTION menu¤DELETE LCD CONTRAST + DARK ¬LIGHT OPTION ƒCTRST ⁄M.CHKDeleting equation files and programs If an Abnormal Condition OccursDELETE ƒEQTN ⁄PROG Solution Error MessagesError no Error messageRange of expected values Using the Solver Function EffectivelyNewton’s method ‘Dead end’ approximationsCalculation accuracy RANGEabChanging the range of expected values Solving y = sin x for y = Equations that are difficult to solveSolving y = x3 - 3x2 + x + 5 for y = Calculation ranges Technical Datax, y → r, θ Variables Memory usageFunction Dynamic rangeFiling Equation functions Priority levels in calculationsSpecifications In Europe For More Information about Scientific Calculators04LGK TINSE0796EHZZ SHARP CORPORATIONPRINTED IN CHINA / IMPRIMÉ EN CHINE / IMPRESO EN CHINA

Chapter 8: Application Examples

Some like it hot (Celsius-Fahrenheit conversion)

Purchasing with payment in n-month installments

How many digits can you remember?

Twinkle, twinkle, little star (Apparent magnitude of stars)