Casio CFX-9970G, Руководство пользователя

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19-2 Simple Interest Calculations
This calculator uses the following formulas to calculate simple interest.
365-day Mode
SI'
=
n
365
!
PV
!
i
SI'
=
n
360
! PV ! i
I
%
100
i
=
I
%
100
i =
SI
: simple interest
n
: number of simple
360-day Mode
interest periods
PV
: present value
I %
: periodic interest rate
SFV
: simple future value
SI = – SI'
SFV = –( PV + SI' )
Press 1 (SMPL) from the Financial 1 screen to display the following input screen
for simple interest calculation.
n ......................
number of simple interest periods (days)
I
% ................
annual interest rate
PV
.................. present value
• {
SI
} / {
SFV
} ... calculates {simple interest}/{simple future value}
Example What would the interest amount and principal plus interest be
for a loan of $1,500 borrowed for 90 days at an annual rate of
7.25%?
Use the 360-day mode and two decimal places.
In the set up screen, specify “ 360 ” for Date Mode and “ Fix2 ” for Display and then
press J .
Perform the following key operation from the input screen.
ja w
h.cf w
-
bfaa
w
1 (
SI
)
P.7
P.6