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Texas Instruments BA II plus Handleiding

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BAII Plus™
Quick Guide
Important Information
Except as otherwise expressly stated in the License that accompanies a
program, Texas Instruments makes no warranty, either express or implied,
including but not limited to any implied warranties of merchantability and
fitness for a particular purpose, regarding any programs or book materials and
makes such materials available solely on an "as-is" basis. In no event shall
Texas Instruments be liable to anyone for special, collateral, incidental, or
consequential damages in connection with or arising out of the purchase or
use of these materials, and the sole and exclusive liability of Texas
Instruments, regardless of the form of action, shall not exceed the amount set
forth in the license for the program. Moreover, Texas Instruments shall not be
liable for any claim of any kind whatsoever against the use of these materials
by any other party.
© 2011-2019 Texas Instruments Incorporated
USA FCC Information Concerning Radio Frequency
Interference
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, you
can try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
• Consult the dealer or an experienced radio/television technician for help.
ii
iii
Caution: Any changes or modifications to this equipment not expressly
approved by Texas Instruments may void your authority to operate the
equipment.
© 2004-2019 Texas Instruments Incorporated
Contents
Important Information ii
USA FCC Information Concerning Radio Frequency Interference ii
Overview of Calculator Operations 1
Turning On the Calculator 1
Turning Off the Calculator 1
Selecting 2nd Functions 2
Reading the Display 2
Setting Calculator Formats 4
Resetting the Calculator 6
Clearing Calculator Entries and Memories 6
Correcting Entry Errors 7
Math Operations 8
Memory Operations 12
Calculations Using Constants 14
Last Answer Feature 15
Using Worksheets: Tools for Financial Solutions 16
Time-Value-of-Money and Amortization Worksheets 21
TVM and Amortization Worksheet Variables 21
Entering Cash Inflows and Outflows 25
Generating an Amortization Schedule 25
Example: Computing BasicLoan Interest 26
Examples: Computing Basic Loan Payments 27
Examples: Computing Value in Savings 28
Example: Computing Present Value in Annuities 29
Example: Computing Perpetual Annuities 30
Example: Computing Present Value of Variable Cash Flows 32
Example: Computing Present Value of a Lease With Residual Value 34
Example: Computing Other Monthly Payments 34
Example: Saving With Monthly Deposits 35
Example: Computing Amount to Borrow and Down Payment 36
Example: Computing Regular Deposits for a Specified Future Amount 37
Example: Computing Payments and Generating an Amortization Schedule 38
Example: Computing Payment, Interest, and Loan Balance After a Specified Pay-
ment 40
Cash Flow Worksheet 42
iv
v
Cash Flow Worksheet Variables 42
Uneven and Grouped Cash Flows 43
Entering Cash Flows 44
Deleting Cash Flows 45
Inserting Cash Flows 45
Computing Cash Flows 46
Example: Solving for Unequal Cash Flows 47
Example: Value of a Lease with Uneven Payments 50
Bond Worksheet 52
Bond Worksheet Variables 52
Bond Worksheet Terminology 54
Entering Bond Data and Computing Results 55
Example: Computing Bond Price and Accrued Interest 56
Depreciation Worksheet 58
Depreciation Worksheet Variables 58
Entering Data and Computing Results 61
Example: Computing Straight-Line Depreciation 62
Statistics Worksheet 63
Statistics Worksheet Variables 63
Regression Models 65
Entering StatisticalData 66
Computing StatisticalResults 66
Other Worksheets 68
Percent Change/Compound Interest Worksheet 68
Interest Conversion Worksheet 72
Date Worksheet 74
Profit Margin Worksheet 76
Breakeven Worksheet 78
Memory Worksheet 80
APPENDIX - Reference Information 82
Formulas 82
Error Messages 93
AccuracyInformation 95
AOS™ (Algebraic Operating System) Calculations 96
Battery Information 97
In Case of Difficulty 98
General Information 100
Contact TI Support 100
Service and Warranty Information 100
Texas Instruments (TI) Warranty Information 100
Index 103
vi
Overview of Calculator Operations
This chapter describes the basic operation of your BA II PLUS™ calculator,
including how to:
• Turn on and turn off the calculator
• Select second functions
• Read the display and set calculator formats
• Clear the calculator and correct entry errors
• Perform math and memory operations
• Use the Last Answer feature
• Use worksheets
Turning On the Calculator
Press $.
• If you turned off the calculator by pressing $, the
calculator returns to the standard-calculator mode with a
displayed value of zero.
All worksheets and formats for numbers, angle units,
dates, separators, and calculation method retain
previous values and configurations.
• If the Automatic Power Down™ (APD™) feature turned off
the calculator, the calculator turns on exactly as you left
it, saving display settings, stored memory, pending
operations, and error conditions.
Turning Off the Calculator
Press $.
• The displayed value and any error condition clear.
• Any unfinished standard-calculator operation and worksheet calculation in
progress cancel.
• The Constant Memory™ feature retains all worksheet values and settings,
including the contents of the 10 memories and all format settings.
Overview of Calculator Operations 1
2 Overview of Calculator Operations
Automatic Power Down™ (APD™) Feature
To prolong battery life, the Automatic Power Down (APD) feature turns off the
calculator automatically after about five minutes of inactivity.
The next time you press $, the calculator turns on exactly as you left it,
saving display settings and stored memory and any pending operations or
error conditions.
Selecting 2nd Functions
The primary function of a key is printed on the key itself. For
example, the primary function of the $ key is to turn on
or turn off the calculator.
Most keys include a second function printed above the key.
To select a second function, press & and the
corresponding key. (When you press &, the 2nd indicator
appears in the upper left corner of the display.)
For example, pressing & U exits the selected worksheet
and returns the calculator to the standard-calculator mode.
Note: To cancel after pressing &, press & again.
Reading the Display
The display shows the selected variable labels with values up to 10 digits. (The
calculator displays values exceeding 10 digits in scientific notation.)
The indicators along 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. (&
To cancel, press & again.
Indicator Meaning
INV Press a key to select its inverse trigonometric function.
HYP Press a key to select its hyperbolic function.
COMPUTE Press C to compute a value for the displayed variable.
ENTER
Press ! to assign the displayed value to the displayed
variable.
SET
Press & Vto change the setting of the displayed
variable.
# $
Press # or " to display the previous or next variable in
the worksheet.
Note: To easily scroll up or down through a range of
variables, press and hold # or ".
DEL Press & W to delete a cash flow or statistical data point.
INS Press & X to insert a cash flow or statistical data point.
BGN
TVM calculations use beginning-of-period payments.
When BGN is not displayed, TVM calculations use end-of-
period payments (END).
RAD
Angle values appear in radians. When RAD is not
displayed, angle values appear and must be entered in
degrees.
1
The displayed value is entered in the selected worksheet.
The indicator clears following a computation.
7
The displayed value is computed in the selected
worksheet. When a value changes and invalidates a
computed value, the indicator clears.
= The displayed variable is assigned the displayed value.
– The displayed value is negative.
Overview of Calculator Operations 3
Choosing the Number of Decimal Places Displayed
The calculator stores numeric values internally to an accuracy of 13 digits, but
you can specify the number of decimal places you want to display. The
calculator displays up to 10 digits with the floating-decimal option. Results
exceeding 10 digits appear in scientific notation.
Changing the number of decimal places affects the display only. Except for
amortization and depreciation results, the calculator does not round internal
values. To round the internal value, use the round function.
Note: All examples in this guidebook assume a setting of two decimal places.
Other settings might show different results.
Choosing the Angle Units
The angle unit value affects the display of results in trigonometric calculations.
When you select radians, the RAD indicator appears in the upper right corner
of the display. No indicator appears when you select the default setting of
degrees.
Using Dates
The calculator uses dates with the Bond and Date worksheets and the French
depreciation methods. To enter dates, use this convention:
mm.ddyy
(US) or
dd.mmyy
(European). After you key in the date, press !.
Choosing Calculation Methods
When you choose the chain (Chn) calculation method, the calculator solves
problems in the order that you enter them. (Most financial calculators use Chn.)
For example, when you enter 3 H 2 < 4 N, the Chn answer is 20 (3 + 2 = 5, 5 *
4 = 20).
Using AOS™ (algebraic operating system), the calculator solves problems
according to the standard rules of algebraic hierarchy, computing multiplication
and division operations before addition and subtraction operations. (Most
scientific calculators use AOS.)
For example, when you enter 3 H 2 < 4 N, the AOS answer is 11 (2 Q 4 = 8; 3
+ 8 = 11).
Resetting Default Values
To reset default values for all of the calculator formats, press & z with
one of the formats displayed.
Overview of Calculator Operations 5
constants 14
converting interest 73
correcting an entry error 7
cost-sell-markup 71
days between dates 76
down payment 36
editing cash flow data 49
entering cash flow data 48
future value (savings) 28
interest received 41
internal rate of return 49
last answer 15
lease with uneven payments 50
memory 12
Memory worksheet 81
modified duration 56
monthly payments 41
monthly savings deposits 35
mortgage payments 38
net present value 48-49, 51
other monthly payments 34
percent change 70
perpetual annuities 30
present value (annuities) 29
present value (lease with residual
value) 34
present value (savings) 28
present value (variable cash flow) 33
profit margin 77
regular deposits for specific goals 37
remaining balance (balloon pay-
ment) 41
residual value 34
saving for future 35
straight-line depreciation 62
EXP (exponential regression) 63, 65
Exponential regression (EXP) 63, 65
F
Face value 54
Factorial 10
FC (fixed cost) 79
Fixed cost (FC) 79
Floating-decimal format 4
Fnn (frequency of nth cash flow) 42
Forecasting 65
Formats
angle units 4-5
calculation method 5
decimal places 4
number separators 4
setting 4
Formulas
30/360 day-count method 92
actual/actual day-count method 91
bond price (one coupon period or
less to redemption) 85
bonds 85
breakeven 91
days between dates 91
depreciation 88
depreciation, declining-balance 88
depreciation, straight-line 88
depreciation, sum-of-the-years’-
digits 88
interest-rate conversions 90
percent change 90
profit margin 90
regressions 89
statistics 89
French declining balance (DBF) 58, 60-61
French straight line (SLF) 58, 60-61
106 Index
… 112 …

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