Texas Instruments BA II Plus - Formulas

116 BA II PLUS™ Calculator
Formulas
Formulas used internally by your calculator are included here
for your information.
Time Value of Money
[]
ie
yx
=−
×+
(())
ln
1
1
where:
PMT
ƒ
0
y
= C/Y
P
P/Y
x
= (.01
Q
I/Y)
P
C/Y
C/Y
= compounding periods per year
P/Y
= payment periods per year
I/Y
= interest rate per year
iFVPV
N
=÷ −
−÷
()
()1
1
where:
PMT
=0
The iteration used to compute
i
:
0
11
1
=+ ×
−+






+×+
−
−
PV PMT G
i
i
FV i
i
N
N
()
()
I/Y
= 100
Q
C/Y
Q
[]
e
yx
(())
×+
−
ln
1
1
where:
x
=
i
y
=
P/Y
P
C/Y
G
i
= 1 +
i
Q
k
where:
k
= 0 for end-of-period payments
k
= 1 for beginning-of-period payments
N
PMT G FV i
PMT G PV i
i
i
i
=
×− ×
××






+
+
ln
ln
()1
where:
i
ƒ
0
N
=
L
(
PV
+
FV
)
P
PMT
where:
i
=0