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A-54 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 54 of 58
This section contains financial formulas for computing time value of money,
amortization, cash flow, interest-rate conversions, and days between dates.
[]
ie
yx
=−
×+
(())
ln
1
1
where:
PMT ƒ
0
y
=
C/Y
÷
P/Y
x
= (.01
×
I%
)
÷
C/Y
C/Y
= compounding periods per year
P/Y
= payment periods per year
I%
= interest rate per year
iFVPV
N
=÷ −
−÷
()
()1
1
where:
PMT
=0
The iteration used to compute
i
:
0
11
1
=+ ×
−+
+×+
−
−
PV PMT G
i
i
FV i
i
N
N
()
()
[]
ICYe
yx
%/
=× × −
×+
1100
(ln( ))1
1
where:
x=i
y = P/Y
÷
C/Y
Gik
i
=+×
1
where:
k=
0 for end-of-period payments
k=
1 for beginning-of-period payments
N
PMT G FV i
PMT G PV i
i
i
i
=
×− ×
××
+
+
ln
ln
()1
where:
i ƒ
0
NPVFVPMT
=+÷
−
()
where:
i=
0
Financial Formulas
Time Value of
Money