HP 10B - Manual (Page 70)

The BlAMQRTI function assumes you have just calculated a payment or
you have stored the appropriate amortization values in I/YR^ FV, PMT^
wdP/YR.
msi
QQÛI
■iP/YRl
Annual nominal interest rate.
Starting balance.
Payment amount (rounded to the display format),
Number of payments per year.
The numbers displayed for interest, principal, and balance arc rounded to
the current display setting.
To Amortize.
To amortize a single payment, enter the period number
and press lINPUTi, then press BlAMORTl. The HP-lOB displays the
message PEr followed by the starling and ending payments that will be
amortized.
Hold 0 down to display the label of the value that you are about to view.
Press 0 to see interest (Int). Press 0 again to sec the principal (Prin)
and again to see the balance (bAL). Continue pressing 0 to cycle
through the same values again.
To amortize a range of pajTOcnts, enter siarling period number I INPUT I
ending period number, then press BlAMORTl. The HP-lOB displays the
message PEr followed by the starting and ending payments that will be
amortized. Then press 0 repeatedly to cycle through interest, principal,
and balance.
Press BiAMORTl again to move to the next set of periods. This auto-
increment feature saves you the keystrokes of entering the new starling
and ending periods.
If you store, recall, or perform any other calculations during amorli/aliun,
pressing 0 will no longer cycle through interest, principal, and balance.
To resume amortization with the same set of periods, press IRCLI
■I
5: Time Value of Money Calculations 67