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A-56 Tables and Reference Information
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 56 of 58
If computing
bal
( ),
pmt
2 =
npmt
Let
bal
(0) =
RND
(
PV
)
Iterate from
m
= 1 to
pmt
2
I
I
m
m
=
×
−
=
− −
+
−
RND RND
i
bal m
bal m
bal m
RND PMT
[
(
(
))]
(
)
(
)
(
)
12
1
1
then:
bal
bal pmt
( )
(
)
=
2
Σ
Pr n
bal pmt
bal pmt
( )
(
)
(
)
=
−
2
1
Σ
Σ
Int
pmt
pmt
RND PMT
n
( )
(
)
(
)
( )
=
−
+ ×
−
2
1 1
Pr
where:
RND
= round the display to the number of
decimal places selected
RND12
= round to 12 decimal places
Balance, principal, and interest are dependent on the
values of
PMT
,
PV
,
æ
, and
pmt
1 and
pmt
2.
Amortization