HP 48g Graphing Calculator User Manual
Page 226
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4. Store values for four TVM variables: I%YR, PV, PMT, and FV.
These variables define the payment schedule. (You can calculate
these using the TVM menu.)
5. Press RMOF? and enter the number of payments to amortize in
this Imtch.
6
. Press FiMOR to amortize the batch of payments. You wall see the
amount applied to interest, to principal, and the remaining balance
after this set of payments have been amortized.
To continue amortizing the loan:
1. Press H-J-pV to store the new balance after the previous
amortization as PV.
2. Enter the number of payments to amortize in the new group.
3. Press FlMuR .
4. Repeat steps 1 through 3 as often as needed.
18
To amortize a series of future payments starting at payment
p:
1. Calculate the balance of the loan at payment p—1.
2. Store the new balance in PV using
iPe-PV .
3. Amortize the series of payments starting at the new PV.
The amortization operation reads the values from the TVM variables,
rounds the numbers it gets from PV and PMT to the current display
mode, then calculates the amortization rounded to the same setting.
The original variables aren’t changed, except for PV, which is updated
by B'ii pV after each amortization.
18-20 Solving Equations