12-8 Using the Finance Solver
3. Press the   soft menu key to amortize the new 
batch of payments.   Repeat steps 1 through 3 as 
often as needed.
Example 4 - Amortization for home mortgage
For the results of Example 3, show the amortization of the 
next 10 years of the mortgage loan. First, press the   
soft menu key. Then, keeping 120 in the PAYMENTS 
field, press the   soft menu key to produce the results 
shown below.
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 the   soft 
menu key.
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 are not changed, except for PV, which is 
updated after each amortization.
HP 39gs English.book  Page 8  Wednesday, December 7, 2005  11:24 PM