User's Manual

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
() ( ) ( )
=−
21
ΣΣ
Int pmt pmt RND PMT n
() ( ) ( ) ()=−+× −211
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