Casio Algebra FX 2.0 PLUS User Manual page 74

FV = – (PMT × n + PV )
PMT = –
PV + FV
n = –
• A deposit is indicated by a plus sign (+), while a withdrawal is indicated by a minus sign (–).
u u u u u Converting between the nominal interest rate and effective interest rate
The nominal interest rate (
I
( %') when the number of installments per year (
compound interest calculation periods (
savings accounts, loan repayments, etc.
I%' =
n PV
When calculating ,
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.
i = I%'÷100
I
When calculating %
I
After % is obtained, the following calculation is performed to convert to
{
I%' =
I
The value of %' is returned as the result of the
2-3-2
Compound Interest
PV + FV
n
PMT
I
% value input by user) is converted to an effective interest rate
C/Y
). This conversion is required for installment
{
I%
(1+
100 × [C / Y ]
PMT FV
, ,
}
[P / Y ]
I%
[C / Y ]
×[C / Y ]×100
(1 + ) –1
100
20011101 20010101
P/Y
) is different from the number of
}
P/Y
[C / Y ]
[P / Y ]
×100
) –1
C/Y
P/Y
C/Y
I
% calculation.
: installment
periods per year
: compounding
periods per year
I
%'.
: installment
periods per year
: compounding
periods per year