Texas Instruments Avigo, User Manual

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Financial Calculator User’s Guide 3
The Time Value of Money/Amortization Application
The Time Value of Money/Amortization ( TVM ) application consists of three screens:
Label Meaning Type of Variable
Top
Screen
…
„
†
‡
ˆ
Future value
Payment
Present value
Interest rate per year
Number of payment periods
Entered or Computed
Entered or Computed
Entered or Computed
Entered or Computed
Entered or Computed
Second
Screen
Starting payment
Ending payment

Ž

Starting payment
Ending payment
Balance
Principal paid
Interest paid
Entered
Entered
Computed
Computed
Computed
Third
Screen
Œ
‹
Payments/year
Compounds/year
‰
Š
Decimal place
Annual percentage rate
Annual effective rate
Number of payments per year
Number of compounds per year
Beginning-of-period payments
End-of-period payments
Number of decimal places
Setting
Setting
Entered
Entered
Setting
Setting
Setting
Financial-TVM Components
On the first screen you must enter at least three variables to solve for the other
unknowns. Use the first screen to determine a Future Value, a Payment Amount,
or the Number of Payments.
•
Enter † , … , and „ as negative if outflows, positive if inflows.
•
Enter ‡ as the annual interest rate. The
TVM
worksheet automatically
divides Interest per Year by the Number of Compounding Periods per Year.
•
Many
TVM
calculations involve only three of the five variables. When solving
such a calculation, make sure the unused variables are set to zero.
•
C
on the first screen resets all fields to zero, and
Ending payment
and
Starting payment
to 1.
The second screen lets you determine the
Balance
,
Principal
paid, or
Interest
paid
based on the
Starting
and
Ending
payments as well as the data entered on the first
screen.
C
on the second screen sets
Starting payment
to 1,
Ending payment
to 1, and all
other fields on the second screen to zero.