Tables and Reference Information A-57
8399APXA.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:25 PM Printed: 02/19/01 1:40 PM
Page 57 of 58
npv CF CF i i
i
jSn
j
N
jj
() ( ) (( ))
=+ + −+
−−
−
=
∑
0
1
111
1
where:Snj
j
ji
i
j
=≥
=
=
∑
1
1
00
Net present value is dependent on the values of the initial
cash flow (CF0), subsequent cash flows (CFj), frequency of
each cash flow (nj), and the specified interest rate (i).
irr() = 100 × i, where i satisfies npv() = 0
Internal rate of return is dependent on the values of the
initial cash flow (CF0) and subsequent cash flows (CFj).
i=I% ÷ 100
4Eff() ( )
()
=× −
×+
100 1
1
eCP xln
where: x= .01 × NOM ÷ CP
[]
4Nom() ()
=×× −
÷× +
100 1
11
CP e CP xln
where: x= .01 × EFF
EFF =effective rate
CP =compounding periods
NOM =nominal rate
Cash Flow
Interest Rate
Conversions