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Transcript
I% = 0
PV = – (PMT × n + FV )
PMT = –
PV + FV
n
FV = – (PMT × n + PV)
n=–
PV + FV
PMT
α = (1+ i × S) ×
γ =
{
1–β
(–Intg(n))
, β = (1 + i)
i
(1+ i ) Frac (n) ........... dn : CI (Setup Screen)
1+ i × Frac (n) ....... dn : SI (Setup Screen)
{
0 ............................ Payment : End
(Setup Screen)
S=
1 ............................ Payment : Begin
(Setup Screen)
i =
{
I%
............................... (P/Y = C/Y = 1)
100
(1+
I%
)
100 × [C/Y ]
C/Y
P/Y
–1 ..... (Other than
those above)
u I%
i (effective interest rate)
i (effective interest rate) is calculated using Newton's
Method.
γ × PV + α × PMT + β × FV = 0
To I % from i (effective interest rate)
i × 100 ................................. (P/Y = C/Y = 1)
I% =
{{
(1 + i )
P/Y
C/Y
}
–1 × C/Y × 100 ... (Other than
those above)
E-49
