Casio BF-100 - Page 17

6-2 Loan Calculations
@
Loan
calculation
is
performed
using
the
LOAN
mode
(Press
the
key
until
LOAN
is
displayed.)
@
Loan
calculation
can
be
performed
using
either
end
of
period
payments
or
beginning
of
period
payments.
Press
(ay
and
to
select
‘tay’
Or
‘tay’.
e
Each
data
element
can
be
obtained
by
the
following
formulas:
End of period payment
1—~(140)7"
4)?
Principal
(amount
borrowed)
PV
=
PMT
+
Sie
Nise
La
=
PMT
-
aa
2
sea
I
I+
(1
+71)
I
be
(1+)?
Pay
P
T=
PV:
—--—_——
=
0
Se
ese
ne
_
1—(1
ery"
(140)?
—
14
-
PY
.
log
(1-1
BaF)
Number
of
periods
N=
log (1 +7)
Interest
rate
Approximation
formulas
by
Newton's
Law
-30-
Beginning of period payment
Principal (amount borrowed)
Payment
Number of periods
Interest rate
PV Pi cet tae
(147) (LV +r)h—14
i
PV i
PMT = ae 8 yp
141 1—(149)7"
i P
log = 55577 BMT?
ne —
log (1 +17)
Approximation formulas by Newton’s Law
-31-
Te EEO AOR GREEN
Yo ge Nee