Appendix B: Reference Information 636
The iteration used to compute i:
where:
i ƒ 0
where:
x
=
i
y
= P/Y ÷ C/Y
where:
k
= 0 for end-of-period payments
k
= 1 for beginning-of-period payments
0 PV PMT G
i
11i+()
N–
–
i
------------------------------
FV 1 i+()
N–
×+×+=
I%100CY e
yx1+()ln×()
1–[]×⁄×=
G
i
1 ik×+=
N
PMT G
i
FV i×–×
PMT G
i
PV i×+×
----------------------------------------------
⎝⎠
⎛⎞
ln
1 i+()ln
----------------------------------------------------------=
N
–
PV FV+()PMT÷=