Calculation formulas -3-3 – Casio CLASSPAD 330 3.04 User Manual
Page 845
20060301
15-3-3
Compound Interest
Calculation Formulas
S PV, PMT, FV, n
I % & 0
I % = 0
PV = – (PMT s n + FV )
FV = – (PMT s n + PV )
PV
=
–
× PMT – × FV
β
γ
α
PMT
=
–
s
FV
=
–
s
n
=
log
(1+
iS ) × PMT – FV × i
(1+
iS ) × PMT + PV × i
{
}
log (1+
i)
PMT
= –
n
PV
+
n
=
PMT
PV
+
–
S I %
i
(effective interest rate)
i (effective interest rate) is calculated using Newton’s Method.
G s PV + A
To
I % from i (effective interest rate)
Tip
• Interest (
I
%) calculations are performed using Newton’s Method, which produces approximate
values whose precision can be affected by various calculation conditions. Interest calculation
results produced by this application should be used keeping the above in mind, or results should
be confirmed separately.
= (1+
i × S ) ×
i
1
–
β
α
i
=
100
I
%
{
I
%
(1+
)
–1
C/Y
P/Y
100
× [C/Y ]
............................... (P/Y = C/Y = 1)
(Other than those above)
0 ............................ Payment : End (Format tab)
1 ............................ Payment : Begin (Format tab)
{
S
=
.....
1 ........................... Off (Format tab)
(1+
i )
Frac
(
n
)
........... CI (Format tab)
1+
i ×
Frac
(n) ....... SI (Format tab)
γ =
{
(1+
i )
−
n
................. Off (Format tab)
(1+
i)
−Intg
(
n
)
............ CI or SI (Format tab)
{
Я
=
{ }
Ч
C
/Y
×
100...
I
% =
(1+ i )
–1
P
/Y
C
/Y
(Other than those above)
i
× 100 ................................. (P/Y = C/Y = 1)
{