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20070201
• A deposit is indicated by a plus sign (+), while a withdrawal is indicated by a minus sign (–).
u
Converting between the nominal interest rate and effective interest rate
The nominal interest rate (
I
% value input by user) is converted to an effective interest
rate (
I
%
'
) when the number of installments per year (
P/Y
) is different from the number of
compound interest calculation periods (
C/Y
). This conversion is required for installment
savings accounts, loan repayments, etc.
P/Y
: installment
periods per year
C/Y
: compounding
periods per year
When calculating
n
,
PV
,
PMT
,
FV
The following calculation is performed after conversion from the nominal interest rate to the
effective interest rate, and the result is used for all subsequent calculations.
When calculating
I
%
After
I
% is obtained, the following calculation is performed to convert to
I
%
'
.
P/Y
: installment
periods per year
C/Y
: compounding
periods per year
The value of
I
%
'
is returned as the result of the
I
% calculation.
FV
=
– (
PMT
×
n
+
PV
)
FV
=
– (
PMT
×
n
+
PV
)
n
PMT
=
–
PV
+
FV
n
PMT
=
–
PV
+
FV
PMT
n
=
–
PV
+
FV
PMT
n
=
–
PV
+
FV
I%
'
=
I%
(1+
)
–1
[
C
/
Y
]
[
P
/
Y
]
100
× [
C
/
Y
]
{ }
×
100
I%
'
=
I%
(1+
)
–1
[
C
/
Y
]
[
P
/
Y
]
100
× [
C
/
Y
]
{ }
×
100
i
=
I%
'
÷
100
i
=
I%
'
÷
100
I%
'
=
I%
(1+
)
–1
[
C
/
Y
]
[
P
/
Y
]
100
{ }
×
[
C
/
Y
]
×
100
I%
'
=
I%
(1+
)
–1
[
C
/
Y
]
[
P
/
Y
]
100
{ }
×
[
C
/
Y
]
×
100
7-3-2
Compound Interest
Summary of Contents for CFX-9850GB PLUS
Page 19: ...20070201 4 Contents Appendix 1 Error Message Table α 1 1 2 Input Ranges α 2 1 ...
Page 335: ...20070201 u Input Example u Results 6 5 25 Tests ...
Page 361: ...20070201 Calculation Result Output Example p F distribution probability 6 7 15 Distribution ...
Page 435: ...20070201 8 8 2 Program Library egcw w ww w ...
Page 437: ...20070201 8 8 4 Program Library Example 1 Example 2 fw fw baw baw bf ca w w ...
Page 439: ...20070201 8 8 6 Program Library d wba wb w w ...
Page 441: ...20070201 8 8 8 Program Library dw fcde fcde w wfcde daw wfcde w ...
Page 443: ...20070201 8 8 10 Program Library b awaw bwaw aw x d w ...
Page 591: ...20070201 Appendix 1 Error Message Table 2 Input Ranges α ...