Sharp EL-120 User Manual

Chapter 1Notes on the SHARP EL-738calculatorGeneralThe SHARP EL-738 calculator is recommended for this module. The advantage of this cal-culator is th

CHAPTER 2. NORMAL CALCULATION MODE• INSERT: INSUse the cursor to move to the place where you want to insert a number. Press2ndF INS (sixth row, last

2.5. CALCULATOR KEYS• SQUARE ROOT:√xUse thex√key. 2ndF third key, forth row.Example:Calculate√64.√64 means2√64.Press 22ndFx√64 =The answer is 8.Exampl

CHAPTER 2. NORMAL CALCULATION MODE• THE EXPONENTIAL FUNCTION: ex– The inverse of ln.Example:Calculate e1,10.Press2ndF ex(2nd key, last row)1.10=The an

2.5. CALCULATOR KEYSTo clear the register.press2ndF M-CLR .1T A B D E G0M E M R E S E TMappears on the screen.Press 0.T A B

CHAPTER 2. NORMAL CALCULATION MODEExample: factorial n!Press 52ndF n! (first key, fourth row) =The answer is 120.Example: PermutationsnPrDetermine10P5.

Chapter 3Financial Calculator ModeNumber ofperiodsInterest rateper yearPresentvaluePaymentFuture value21

CHAPTER 3. FINANCIAL CALCULATOR MODE3.1 Normal modeTheNORMALmodeallowsustousethefinancial keys. The financial keys N , 1/Y ,PV , PMT , FV can only be us

3.2. INTEREST RATES• Determine the simple interest rate if R3 600 accumulates to R5 760 in five years’ time.S = P (1 + rt)5 760 = 3 600 (1 + r × 5)1+5r

CHAPTER 3. FINANCIAL CALCULATOR MODEBy manipulatingS = P (1 + rt)andP = S (1 − dt)we getr =d1 − dtandt =1 −dr÷ d.Substituting the values, we gett =

3.2. INTEREST RATESS = P (1 + r)t= 5 0001+0,15125×12= 10 535,91The future value is R10 535,91.Key in as2ndF CA (to clear the register).First enter t

CHAPTER 1. NOTES ON THE SHARP EL-738 CALCULATOR8

CHAPTER 3. FINANCIAL CALCULATOR MODECOMP NN = 9.5844 appears on the screen. Because the number of compounding periods is halfyearly, divided the answe

3.3. ANNUITIES• Determine the future value of R400 monthly payments made for five years at 16%interest per year, compounded monthly.S = 400s5×12 0,16÷1

CHAPTER 3. FINANCIAL CALCULATOR MODE1 491.58 appears on the screen.PressAMRT (fourth row, first key) 1 (Down arrow) 1 ENTPress BALANCE = −4 258.42 ap

3.3. ANNUITIESPress  BALANCE = 0.02PressPRINCIPAL = 1 297.03PressINTEREST = 194.5529

CHAPTER 3. FINANCIAL CALCULATOR MODE30

Chapter 4Statistical modeDisplay screenPower ON/OFFand clear key{Cursor keysMode keyKey operationkeysStatistical keys31

CHAPTER 4. STATISTICAL MODEGiven a data set, the calculator’s STAT function can be used to calculate certain statisticalvalues such as the average (me

4.2. STANDARD DEVIATIONPress ON/C0 . 0 0T A B D E G S T A T0S t a tappears on the screen.PressRCL (first key, fifth row) ¯x (first key, s

CHAPTER 4. STATISTICAL MODE0 . 0 0T A B D E G S T A T1S t a t• Determine the equation for the straight line passing through the points

Contents1 Notes on the SHARP EL-738 calculator 72 Normal Calculation Mode 112.1 Switchonyourcalculator ... 122.2 TheSETUPmenu

CONTENTS10

Chapter 2Normal Calculation ModeDisplay screenPower ON/OFFand clear key{Cursor keysMode keyKey operationkeysNumerical andarithmetic keys11

CHAPTER 2. NORMAL CALCULATION MODE2.1 Switch on your calculatorBefore using your calculator for the first time, reset (initialise) it. Press the RESET

2.3. SELECTING A MODETo set the number of decimals, press SET UP 00.D I G ( 0 - 9 ) ?T A B D E Gappears on the screen.Press 2 to select

CHAPTER 2. NORMAL CALCULATION MODEPress 0.0 . 0 0T A B D E Gappears on the screen2.4 Normal modeThe NORMAL mode allows you to perform fin

2.5. CALCULATOR KEYS• CLEAR ON/CLast key, first row.• BRACKETS( )Last key, third last row and second last row.Use the( and ) keys to place parentheses