Texas Instruments BA-2-PLUS Calculator User Manual


 
24 Time-Value-of-Money and Amortization Worksheets
Entering Values for I/Y, P/Y, and C/Y
•Enter I/Y as the nominal interest rate. The TVM worksheet
automatically converts
I/Y to a per period rate based on the values of
P/Y and C/Y.
Entering a value for P/Y automatically enters the same value for C/Y.
(You can change C/Y.)
Specifying Payments Due With Annuities
Use END/BGN to specify whether the transaction is an ordinary annuity
or an annuity due.
•Set
END for ordinary annuities, in which payments occur at the end
of each payment period. (This category includes most loans.)
•Set BGN for annuities due, in which payments occur at the beginning
of each payment period. (This category includes most leases.)
Note: When you select beginning-of-period payments, the BGN indicator
appears. (No indicator appears for END payments.)
Updating P1 and P2
To update P1 and P2 for a next range of payments, press % with P1 or
P2 displayed.
Different Values for BAL and FV
The computed value for BAL following a specified number of payments
might be different than the computed value for FV following the same
number of payments.
When solving for
BAL, PRN, and INT, the calculator uses the PMT
value rounded to the number of decimal places specified by the
decimal format.
When solving for FV, the calculator uses the unrounded value for
PMT.
Entering, Recalling, and Computing TVM Values
To enter a TVM value, key in the value and store it by pressing a TVM
key (,, -, ., /, 0).
To display a stored TVM value, press J and a TVM key.
You can enter or recall a value for any of the five TVM variables (
N, I/Y,
PV, PMT, or FV) in either the standard calculator mode or a worksheet
mode. The information displayed depends on which mode is selected.
In standard calculator mode, the calculator displays the variable
label, the = sign, and the value entered or recalled.