Financial Functions 14-9
8314FINA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:50 PM Printed: 02/19/01 1:38 PM
Page 9 of 14
Use the amortization functions (menu items
9
,
0
, and
A
) to
calculate balance, sum of principal, and sum of interest for
an amortization schedule.
bal(
computes the balance for an amortization schedule
using stored values for
æ
,
PV
, and
PMT
.
npmt
is the
number of the payment at which you want to calculate a
balance. It must be a positive integer < 10,000.
roundvalue
specifies the internal precision the calculator uses to
calculate the balance; if you do not specify
roundvalue
,
then the TI
-
83 uses the current
Float
/
Fix
decimal-mode
setting.
bal(
npmt
[
,
roundvalue
]
)
G
Prn(
computes the sum of the principal during a specified
period for an amortization schedule using stored values for
æ
,
PV
, and
PMT
.
pmt1
is the starting payment.
pmt2
is the
ending payment in the range.
pmt1
and
pmt2
must be
positive integers < 10,000.
roundvalue
specifies the internal
precision the calculator uses to calculate the principal; if you
do not specify
roundvalue
, the TI
-
83 uses the current
Float
/
Fix
decimal-mode setting.
Note: You must enter values for
æ
,
PV
,
PMT
, and before computing
the principal.
G
Prn(
pmt1
,
pmt2
[
,
roundvalue
]
)
G
Int(
computes the sum of the interest during a specified
period for an amortization schedule using stored values for
æ
,
PV
, and
PMT
.
pmt1
is the starting payment.
pmt2
is the
ending payment in the range.
pmt1
and
pmt2
must be
positive integers < 10,000.
roundvalue
specifies the
internal precision the calculator uses to calculate the
interest; if you do not specify
roundvalue
, the TI
-
83 uses
the current
Float
/
Fix
decimal-mode setting.
G
Int(
pmt1
,
pmt2
[
,
roundvalue
]
)
Calculating Amortization
Calculating an
Amortization
Schedule
bal(
G
Prn(,
G
Int(