Manuale d’uso / di manutenzione del prodotto BA II plus del fabbricante Texas Instruments
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BA II PLUS™ Calculator.
ii Important Information T exas Instruments makes no warranty , either express or implied, including but not limited to any imp lied warranties of merchantability and fitness for a particular purpo se, regarding any programs or book materials and makes suc h materials availa ble solely on an "as-is" basis.
Contents iii Important Information.................. ........... .............. ............ ............ ii USA FCC Information C oncerning Rad io Frequency Interferenceii 1 Overview of Calculator Operations .................................. 1 T urning On the Calculator .
iv Uneven and Group ed Cash Flows .............. ........... .............. ......... 42 Entering Cash Flows.......... ............ .............. ........... ........... ............ 43 Deleting Cash Flows.......... ............ .............. ......
Overview of Calculator Operations 1 1 Overview of Calculat or Operations This chapter describes the basic operation of your BA I I PLUS™ calculator , including how to: • T urn on and tur n off the.
2 Overview of Calculator Operations • The Constant Memory™ feature re tains all worksheet values and settings, includi ng the contents of the 10 memories and all format settings.
Overview of Calculator Operations 3 The indicators alon g the top of the display tell you which keys are active and offer information about the status of the calculator . Indicator Meaning 2nd Press a key to select its second function. INV Press a key to select its in verse trigonometric function.
4 Overview of Calculator Operations Setting Calculator Formats 1. T o access format opt ions, press & | . The DEC indicator appears with the select ed number of decimal places. 2. T o change the number of decimal pl aces displa yed, key in a value and press ! .
Overview of Calculator Operations 5 Changing the number o f decimal p lac es af fects th e display o nly . Except for amortization and depr eciati on result s, the calc ulator does not rou nd internal values. T o round the intern al value, use the round functi on.
6 Overview of Calculator Operations Resetting the Calculator Because the calculator include s alternative methods that let you clear data selectively , use reset carefully to avoid losing data needlessly . (See “ Clearing Calculator Entries and Me mories ” on page 6.
Overview of Calculator Operations 7 Correcting Ent ry Err ors Example : Y ou mean to calculat e 3 Q 1234.56 but instead enter 1234.86. The prompted worksheet and reset def ault values & z Calculat.
8 Overview of Calculator Operations Math Operations When you select the chain ( Chn ) calculation method, the calcul ator evaluates mathematical expres sions (for example, 3 + 2 Q 4) in the order that you enter them. Examples of Math Operations These operations require you to press N to complete.
Overview of Calculator Operations 9 * The random number you gene rate might be different. ** Angles can be computed in degrees or radians. Examples show angles in degre es. (See “ Choosi ng the Angle Unit s ” on page 5.) Universal Power ; Press ; to raise the displayed positive number to any power (for example, 2 -5 or 2 (1/3) ).
10 Overview of Calculator Operat ions Parentheses 9 : Use parentheses to control the order in which the calcul ator evaluates a numeric ex pression in division, multiplication , powers, roots, and logarithm calculations. The calculat or includes up to 15 levels of parentheses and up to 8 pendin g operations.
Overview of Calculator Operations 11 For example, work ing in the Bond works heet, you might want to round a computed selling price to the neare st penny (two decimal places) before continuing your calculati on. Note: The calculator stores values to an accuracy of up to 13 digits.
12 Overview of Calculator Operat ions Memory Operat ions Clearing Memory Clearing memory before yo u begin a ne w calculation is a critical step in avoiding errors. • T o clear an individual memory , store a zero value in it. • T o clear all 10 calculato r memori es, press & { & z .
Overview of Calculator Operations 13 • Memory arithmetic changes only th e value in the affected memory and not the displayed value. • Memory arithmet ic does not compl ete any calculat ion in progress . The table lists the availa ble memory arithmetic functions.
14 Overview of Calculator Operat ions Keystrokes for Constant Calculations This table shows how to create a constant for various operations. *The letter c denotes the constant va lue. ** Repeat co nstant calcul ations with n N . Last Answer Feature T o display th e last answ er compute d, press &x .
Overview of Calculator Operations 15 Using W orksheets: T ools for Financial Solutions Each worksheet is independent of the others: oper ations in a worksheet do not affect varia bles in ot her wo rksheets. When you exit a worksheet or turn off the calculator , the calc ulator retains all worksheet data.
16 Overview of Calculator Operat ions Accessing the TVM Worksheet V ariables Statistics worksheet (Chapter 6) Analyzes statistics on one- or two-variable data using four regressi on analys is opti ons.
Overview of Calculator Operations 17 Accessing Prompted-W orksheet V ariables After you access a worksheet, press # or " to select variables. For example, press & to access the Amortization worksheet, and then press # or " to sele ct the amortization variables ( P1 , P2 , BAL , PRN , INT ).
18 Overview of Calculator Operat ions When you disp lay a compute-only variable, th e COMPUTE ind icator reminds you to press % to compute its value. After you press % , the indicato r confirms that the di splayed val ue has been com puted.
Overview of Calculator Operations 19 Display Indicators •T h e indicator confirms that the ca lculator entered the di splayed value in the worksheet.
20 Overview of Calculator Operat ions.
T ime-V alue-of-Money and Am ortization Worksheets 21 2 Time-V alue-of-Money and Amortization Wo r k s h e e t s After solvin g a TVM prob lem, you ca n use the Amortization worksheet to generate an amortization schedule. • T o access a TVM variable, press a TVM key ( , , - , .
22 T ime-Value-of-Money and Amortization Worksheets TVM and Amortization W orksheet V ariables Note: This guide book categorizes calcul ator variables by the method of entry .
T ime-V alue-of-Money and Am ortization Worksheets 23 • T o generate an amorti zation schedule, press & , e nter th e first and last payment number in the range ( P1 and P2 ), and press " or # to compute values for each variable ( BAL , PRN , and INT ).
24 T ime-Value-of-Money and Amortization Worksheets Entering V alues for I/Y , P/Y , and C/Y •E n t e r I/Y as the nominal interest rate. The TVM worksheet automatically converts I/Y to a per period rate ba sed on the values of P/Y and C/Y . • Entering a value for P/Y automatically enters the same value for C/Y .
T ime-V alue-of-Money and Am ortization Worksheets 25 • In worksheet modes the calculator displays only the value you enter or recall, although any variable label previously displayed remains displayed. Note: Y o u can tell that the displayed value is not assigned to the displayed variab le, because the = indicator is not displayed.
26 T ime-Value-of-Money and Amortization Worksheets 6. Press & . — or — If INT is displayed, press # to display P1 agai n. 7. T o generate the am ortization schedule , repeat steps 2 through 5 for each range of payments.
T ime-V alue-of-Money and Am ortization Worksheets 27 Answer: The interest rate is 5.5% per year . Examples: Computing Basic Loan Payment s These examples show you how to co mpute basic loan payments on a $75,000 mortgage at 5.
28 T ime-Value-of-Money and Amortization Worksheets Answer: The quarterly payments are $1,279.82. Examples: Computing V alue in Savings These examples show you how to comp ute the future and present values of a savings acco unt paying 0.5% co mpounded at the end of each year with a 20-year time frame.
T ime-V alue-of-Money and Am ortization Worksheets 29 Example: Computing P re sent V alue in Annuities The Furros Company purchased equipment provid ing an annual savin gs of $20,000 over 10 years.
30 T ime-Value-of-Money and Amortization Worksheets Answer: The present value of the savings is $122,891.34 with an ordinary annuity and $135,180.48 with an annui ty due. Example: Compu ting Perpetual An nuities T o replace bricks in their highway system, the Land of Oz h as issued perpetual bonds p aying $110 per $1000 bond.
T ime-V alue-of-Money and Am ortization Worksheets 31 Perpetual annuity due Because the term (1 + I/Y / 100) - N in the present valu e annuity equations approaches zero as N increases, you can use the.
32 T ime-Value-of-Money and Amortization Worksheets Given a 10% discou nt rate, does th e present value of the cash flows exceed the original cost of $23,000? T o Press Display Set all variables to defaults. & } ! RST 0.00 Enter interest rate per cash flow period.
T ime-V alue-of-Money and Am ortization Worksheets 33 Answer: The present value of the cas h fl ows is $23,171.23, which exce eds the machine’ s cost by $1 71.
34 T ime-Value-of-Money and Amortization Worksheets The total value of the machine is th e present value of the residual value plus the present value of the lease payments.
T ime-V alue-of-Money and Am ortization Worksheets 35 Answer: Y our monthl y payment is $26.72. Example: Saving With Monthly Deposits Note: Accoun ts with payment s made at the begin ning of the pe riod are referred to as annuity due accounts. Interest begi ns accumulating earlier and produces sl ightly higher yields.
36 T ime-Value-of-Money and Amortization Worksheets Answer: Depositing $200 at the beginn ing of each month for 20 years results in a future amount of $111,438.31. Example: Computing Amo unt to Borr ow and Down Payment Y ou consider buying a car for $15,10 0.
T ime-V alue-of-Money and Am ortization Worksheets 37 Answer: Y ou can borrow $13,441.47 with a down payment of $1,658.53. Example: Computing R egular Deposits for a Specified Futur e Amoun t Y ou plan to open a savings acc ount and deposit th e same amount of money at the beginnin g of each month.
38 T ime-Value-of-Money and Amortization Worksheets Example: Computin g Payments and Generating an Amortization Schedule This example shows you how to use the TVM and Amortization worksheets to calculate t he monthl y payments on a 30-year loan and generate an amortization schedule fo r the first three year s of the loan.
T ime-V alue-of-Money and Am ortization Worksheets 39 Example: Compu ting Payment, In ter est, and Loan Balance After a Specifie d Payment A group of sellers considers fina ncing the sale pr ice of a property for $82,000 at 7% annual interest, amortize d over a 30-year term with a balloon paymen t due after five years.
40 T ime-Value-of-Money and Amortization Worksheets Generating an Amortization Schedule for Interest and Balloon Payment If the s ellers finance d the sa le, they would re ceive: • Monthly payment: $545.55 for five years • Interest: $27,790.72 over the five years • Balloon payment: $77,187.
Cash Flow Worksheet 41 3 Cash Flow Wo rksheet Cash Flow Works heet V ariables * nn represent s the cash fl ow ( C01 – C24 ) or frequency ( F01 – F24 ) number . Use the Cash Flow workshee t to solve problems with unequal cas h flows. T o solve problems with equal cash flows, use the TVM worksheet.
42 Cash Flow Worksheet ** This guidebook categorize s variables by the method of entry . (See “ T ypes of Worksheet V ariables ” on page 17.) Resetting V ariables • T o reset CFo , C nn , and F nn to default values, press ' and then &z .
Cash Flow Worksheet 43 Grouped Cash Flows Cash-flow problems can contain cash flow s with unique values as well as consecutive cash flows of equal value. Although you must enter unequal ca sh flows separately , you can enter groups of cons ecutive, equal cash flows si multaneously using the F nn variable.
44 Cash Flow Worksheet The DEL indicator confirms that yo u ca n delete a cash fl ow . 1. Press # or " until the cash flow you want to delete appears.
Cash Flow Worksheet 45 • Internal rate of return ( IRR ) is the interest rate at which the net present value of the cash flows is equal to 0. Computing NPV 1. Press ( to display the curre nt discou nt rate ( I ). 2. Key in a value and press ! . 3. Press # to display t he current net present value ( NPV ).
46 Cash Flow Worksheet When more than o ne solution exists, the calculator displays the one closest to zero. Be cause the disp layed solution has no financial meaning, you shou ld use caution in making investment decisions based on an IRR comput ed for a cash-fl ow stream with more t han one sign chang e.
Cash Flow Worksheet 47 Entering Cash-Flow Data Editing Cash-F low Data After entering the cash-flow data, you learn that the $4,000 cash-flow value should occur in the sec ond year instead of the sixth. T o edit, delete the $4,000 value for year 6 and insert it for year 2.
48 Cash Flow Worksheet Computing NPV Use an interest rate per period ( I ) of 20%. Answers: NPV is $7,266.44. Computing IRR Answer: IRR is 52.71%. Example: V alue of a Lease with Uneven Payments A lease with an uneven paymen t schedule usually accommodates seasonal or othe r anticipated fl uctuat ions in the lessee’ s cash position.
Cash Flow Worksheet 49 • What even paymen t amount at the beginn ing of each mont h would result in the same present value? Because the cash flows are uneven, use the Cash Flow worksheet to determine the net present value of the lease. Computing NPV The cash flows for the first four months are stated as a group of four $0 cash flows.
50 Cash Flow Worksheet Enter monthly ea rnings rate. 10 6 12 ! I= 0.83 Compute NPV . # % NPV= -138,088.44 T o Press Display.
Bond Worksheet 51 4 Bond Wo rksheet Note: Pressing # or " to navigate through th e Bond worksheet before you enter values causes an e rror ( Error 6 ). T o clear the error , press P . (See “ Error Message s ” on page 94.) The Bond wo rksheet lets you compute bond price, yield to maturity or call, and accrued interest.
52 Bond Worksheet Bond W orksheet V ariables Resetting Bond Worksheet V ariables • T o reset the Bond worksheet vari ables to default values, press & z while in the Bond worksheet. • T o reset all calculator variable s and formats to default values, including th e Bond worksheet vari ables, press &}! .
Bond Worksheet 53 • The calculator assumes that the redemption date ( RDT ) co incides with a coupon date : –T o c o m p u t e to maturity , enter the maturity dat e for RDT .
54 Bond Worksheet Bond W orksheet T er minology Entering Bond Da ta and Computing Resu lts T o compute values for price ( PR I ) or yield ( YLD ) and acc rued interest ( AI ), first enter the four k nown va lues for settlement da te ( SDT ), coupon rate ( CPN ), redemption da te ( RDT ), and redemp tion value ( RV ).
Bond Worksheet 55 If necessary , change the day-count method ( ACT or 360 ) and coup on- frequency ( 2/Y or 1/Y ). The Bond worksheet stores all values and settings until you clear the worksheet or change the values and settings. Note: Dates are not changed when you clear a worksheet.
56 Bond Worksheet Example: Computing Bond Price and Accrued Interest Y ou cons ider buying a semia nnual corpor ate bond maturing on December 31, 2007 and settling on Ju ne 12, 2006. The bond is based on the 30/360 day-count method with a coupon rate of 7%, redeemable at 100% of par value.
Depreciation W orksheet 57 5 Depr eciation W orksheet Depreciation W orksheet V ariables The Depreciation worksheet lets you generate a depreciation schedule us ing yo ur choice of depre ciation methods. • T o access the Depr eciation worksheet, press & p .
58 Depreciation Worksheet * SLF and DBF are available only if you select the European format for dates or separators in numbers. (See “ Setting Calculator Formats ” on page 4.) ** This guidebook categorize s variable s by their method of ent ry . (See “ T ypes of Worksheet V ariables ” on page 17.
Depreciation W orksheet 59 Entering V alues for DB and DBX If you choose eith er the declining balance ( DB ) or declining balance with crossove r to SL ( DBX ) depreciation method, remember to enter a value representing the percent of declin ing balance fo r the DB or DBX variable.
60 Depreciation Worksheet Selecting a Depreciati on Method 1. T o access the Deprecia tion worksheet, press & p . The current depreciation method i s displayed. 2. T o clear the worksheet, press & z . 3. Press & V until you disp lay the depr eciation method you want ( SL , SLF , SYD , DB , DBX , or DBF ).
Depreciation W orksheet 61 Example: Computing S traight-Line Depr eciation In mid-March, a company beg ins depreciation of a commercial bui lding with a 31½ year life and no salvage value.
62 Depreciation Worksheet.
Statistics Worksheet 63 6 Statistics W orksheet Statistics Works heet V ariables The Statistics worksheet pe rforms analysis on one-and two-variabl e data with four regression analysis models. • T o enter statistical data , press & j . • T o choose a statis tics calculati on method and compute the resul ts, press &k .
64 Statistics Worksheet * nn represents the number of the current X or Y value. ** Not displayed for one-va riable statistics. *** This guidebook categorize s calculat or variables by their method of entry . (See “ T ypes of Worksheet V ariables ” on pa ge 17.
Statistics Worksheet 65 • When you enter data for one -variable statistics, X nn represents the value and Y nn specifies the number of occurrenc es (freque ncy). • When you enter a value for X nn , the value for Y nn defaults to 1. Analyzing One-V ariable Statistics T o analyze one-variable statistics, s elect 1-V .
66 Statistics Worksheet • Ln uses ln(X) and Y . • EXP uses X and ln(Y). • PWR uses ln(X) and ln(Y). The calculator determi nes the values for a and b that create the line or curve that best fits the data.
Statistics Worksheet 67 Computing Statistical Results Selecting a Statistics Calculation Method 1. Press & k to select the st atistical calculatio n portion of the Statistics worksheet. 2. The last selected statistics calculation method is displayed ( LIN , Ln , EXP , PWR , or 1-V ).
68 Statistics Worksheet.
Other W orksh eets 69 7 Other W orksheets The calculator al so includes these worksh eets: Perc ent Change/C ompound Inter est W orksheet Percent Change/Compound Interest Worksheet V a riables Note: This guide book categorizes variab les by their method of entry .
70 Other Worksheets Resetting the Percent Cha nge/Compound Inter est Worksheet V ariables • T o reset th e Percent Change/Com poun d Interest variables to default values, press & z while in the Percent Change/Compound Interest worksheet. • T o reset default values for all calc ulator varia bles and formats, press & } ! .
Other W orksh eets 71 3. T o enter values for th e known variables, press # or " until the variable you want is displayed, then key in a value, and p ress ! . (Do not enter a va lue for the va riable you wish to solve.) • Percent Change — Enter values for two of these three variables: OLD , NEW , and %CH .
72 Other Worksheets Answer: The annual growth rate is 8.4 5%. Example: Computing Cost-Sell-Markup The original cost of an item is $100; the selling price is $125. Find the markup. Answer: The mark up is 25%. Interest Conversion Wo rksheet Note: The calculator cate gorizes variab les by their method of entry .
Other W orksh eets 73 Comparing the Nominal Interest Rate of Investments Comparing the nominal interest rate (annual percentage rate) of investments is misleading when the investments have the same nominal rate but different numbers of compou nding pe riods per year .
74 Other Worksheets 6. T o compute a value for the unknow n variable (interest rate), press # or " until NOM or EFF is displayed, and th en press % . The calculator displays the computed value. Example: A bank offers a certificate that pays a nominal interest rate of 15% with quarterly compound ing.
Other W orksh eets 75 Note: The calculator cate gorizes variab les by their method of entry . (See “ T ypes of Worksheet V ariables ” on page 17.) Resetting the Date W orksheet V ariables • T o reset default values for all calculator variables and formats, including the Date worksheet variables, press & } ! .
76 Other Worksheets 6. T o change the day-count meth od setting, press # until ACT or 360 is displayed. 7. T o compute a value for th e unknown variable, press # or " to display the variable , and then press % . The calculator displays the computed value.
Other W orksh eets 77 Note: This guidebook ca tegorizes c alculat or variables by their method of entry . (See “ T ypes of Worksheet V ariables ” on pa ge 17.) Gross Pr ofit Margin and Markup The terms margin an d markup often are used inte rchangeab ly , but each has a distinct meaning.
78 Other Worksheets Answer: The original cost is $100. Br eakeven W orksheet Note: T o solve for quantity ( Q ), enter a value of zero for profit ( PF T ). Breakeven W orksheet V ariables Note: This guidebook ca tegorizes c alculat or variables by their method of entry .
Other W orksh eets 79 Computing Breakeven 1. T o access the Breakeven workshe et, press & r . The FC variable appears. 2. Press # or " to select a known variable, key in the value, and press ! . 3. Repeat step 3 for each of the remaining known variables .
80 Other Worksheets Memory Worksheet Memory Worksheet V ariables Note: This guidebook ca tegorizes c alculat or variables by their method of entry . (See “ T ypes of Worksheet V ariables ” on pa ge 17.) Clearing the Memory Worksheet V ariables T o clear all 10 memories at once , press & z in the Memory worksheet.
Other W orksh eets 81 • T o view the contents of the memories, press # or " once for each memory . • T o store a value, s elect a memory ( M0 - M9 ), key in a value, and press ! . • Memory arithmetic. (See “ Memory Arithmetic ” on page 12.
82 Other Worksheets.
Appendix — Reference Information 83 A Appendix — Refer ence Information This appendix incl udes supplemental info rmation to help you use your BA II PLUS é calculator: •F o r m u l a s • Erro.
84 Appendix — Reference Information I/Y = where: x = i y = P/Y P C/Y G i = 1 + i Q k where: k =0 for end- of-period payments k =1 for beginning-o f-period payments where: i ƒ 0 N = L ( PV + FV ) P .
Appendix — Reference Information 85 where: i ƒ 0 FV = L ( PV + PMT Q N ) where: i =0 Amortization If computing bal (), pm t2 = npmt Let bal (0) = RND ( PV ) Iterate from m = 1 to pmt2 then: bal( ) .
86 Appendix — Reference Information Net present value depends on the v a lues of the in itial cash flow ( CF 0 ), subsequent cash flows ( CF j ), frequency of each cash flow ( n j ), and the specified interest rate ( i ).
Appendix — Reference Information 87 Bonds 1 Price (given yield) with on e coupon period or less to redemption: where: PRI =dollar price per $ 100 par value RV =redemption value of the securit y per .
88 Appendix — Reference Information Price (given yield) with more than one coup on period to rede mption: where: N =n umber of coupons payable between settlement date and redemption date (maturity date, ca ll date, put date, etc.). (If this number contai ns a fraction, raise i t to the next whole numbe r; for example, 2.
Appendix — Reference Information 89 Straight-line depr eciation First year: Last year or more: DEP = RDV CST SAL – LIF --------------------------- C ST SAL – LIF - -------------------------- FST.
90 Appendix — Reference Information Sum-of-the -years’-di gits depr eciation First year: Last year or more: DEP = RDV Declining-balance depreciation where: RBV is for YR - 1 First year: Unless ; then use RDV Q FSTYR If DEP > RDV , use DEP = RDV If computing last year , DEP = RDV Statistics Note: Formulas apply to both x an d y .
Appendix — Reference Information 91 Standard devi ation with n - 1 weighting (s x ): Mean: Regressions Formulas apply to all regression models using transformed data.
92 Appendix — Reference Information where: OLD =old value NEW =new va lue %CH =percent change #PD =number of period s Profit Margin Brea keven PFT = P Q N ( FC + VC Q ) where: PFT =profit P =price F.
Appendix — Reference Information 93 where: M1 =m onth of fir st date DT 1 =day of first date Y 1 =year of first da te M 2 =month of second date DT 2 =day of second date Y 2 =year of secon d date MB .
94 Appendix — Reference Information Error Messages Note: T o clear an error message, press P . Error Possible Causes Error 1 Overflow • A result is ou tside the calcu lator range ( ± 9.9999999999999 E99). • T ried to divide by zero (can occur internally).
Appendix — Reference Information 95 Accuracy Information The calculator stores resu lts internally as 13-digit numbers but displays them rounded to 10 digits or fewer , depending on the decimal format. The internal digits, or guard digits, in crease the calculator’ s accuracy.
96 Appendix — Reference Information Rounding If a calculation produc es a result wi th 11-digits or more, the calculator uses the internal guard digits to determine how to d isplay the r esult. I f the eleventh digit of the result is 5 or greater , the calculator rounds the result to the next larger value for display .
Appendix — Reference Information 97 Battery Information Replacing the Battery Replace the battery with a new CR2032 lithium battery . Caution: Risk of explosion if replaced by an incorrec t type. Replace only with the same or equivalent type recommended by T exas Instrument s.
98 Appendix — Reference Information Battery Disposal • Do not mutilate, or dispos e of batteries in fire. • The batteries can burst or explod e, releasing hazardous chemicals.
Appendix — Reference Information 99 T exas Instruments Sup port and Service For general information For technical support For Product (har dware) Service Customers in the U.S., Canada, Mexico, Puerto Rico and V irgin Islands: Always contact T exas Instrume nts Customer Support before returning a product for service.
100 Appendix — Refe rence Information T exas Instruments (TI) W arranty Information Customers in the U.S. and Canada Only One-Y ear Limited W arranty for Commercial Electronic Produc t This T exas Instrument s ("TI") el ectronic product warranty exte nds only to the origi nal purchaser an d user of the product.
Appendix — Reference Information 101 This T exas Instruments electronic product warra nty extends only to the original purchaser and user of the product. W arranty Duration. This T exas Instruments electronic product is warranted to the original purchaser for a perio d of one (1) year from the original purchase date.
102 Appendix — Refe rence Information.
Index 103 Index Symbols #PD (number of pe riods) 70 , 71 , 72 #PD (numbe r of pe riods, Percent Change/Compoun d Interest worksheet) 70 %CH (percent change) 70 , 71 , 72 ( - (negative) indicator 3 ( #.
104 Ind ex payments 22 , 24 Bond accrued interest (AI) 52 price (PRI) 56 terminology 54 worksheet 51 – 56 Breakeven worksh eet 78 – 79 C C/Y (compoundi ng periods per ye ar) 22 , 24 , 74 Calculati.
Index 105 Dollar price (PRI ) 52 , 54 , 55 DPB (discounted pay back) 41 DT1 (starting date) 60 DT1, DT2 (date 1 and 2) 57 , 76 DUR (modified duration) 52 E EFF (annual ef fective rate) 73 , 74 END (en.
106 Ind ex bond yield (more tha n one coupon period to redemption) 88 bond yield (one coupon period or less to redemption) 87 bonds 87 breakeven 92 cash fl ow 85 days between dates 92 depreciation 88 .
Index 107 N n (number of observat ions) 63 , 65 N (number of periods) 24 N (number of periods, TVM worksheet) 22 Negative (–) indicator 3 Net future value (NFV) 41 Net present value (NPV) 41 , 44 NE.
108 Ind ex entering depreciation data 60 generating a depreciati on schedule 60 generating amortization schedules 25 , 26 inserting cash flows 44 selecting a depr eciation met hod 60 selecting a stati.
Index 109 Starting month (M0 1) 57 , 59 , 60 Starting payment (P1) 22 , 24 Statistical data 66 Statistics worksheet 63 – 67 Storing to memory 12 Straight line (SL) 57 , 59 , 60 Subtraction 8 Sum of .
110 Ind ex.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Texas Instruments BA II plus è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Texas Instruments BA II plus - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Texas Instruments BA II plus imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Texas Instruments BA II plus ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Texas Instruments BA II plus, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Texas Instruments BA II plus.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Texas Instruments BA II plus. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Texas Instruments BA II plus insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
