Financial Formulas - Texas Instruments TI-83 Manual Book

Financial Formulas

This section contains financial formulas for computing time value of money,
amortization, cash flow, interest-rate conversions, and days between dates.
Time Value of
Money
A-54 Tables and Reference Information
( y ln ( x 1 ))
i e
PMT ƒ 0
where:
y = C/Y P/Y
x = (.01
C/Y = compounding periods per year
P/Y = payment periods per year
I% = interest rate per year
( 1
( )
i FV PV
where: PMT = 0
The iteration used to compute i:
0 PV PMT G
I % 1 1 00 C Y /
where: x = i
y = P/Y C/Y
G 1 i k
i
where: k = 0 for end-of-period payments
k = 1 for beginning-of-period payments
PMT G
ln
PMT G
N
1
ln(
i ƒ 0
where:
N ( PV FV )
where: i = 0
1
I%) C/Y
N )
1
N
1 ( 1 )
i
i
i
( y ln( x 1 ))
e 1
FV i
i
PV i
i
)
i
PMT
N
FV ( 1 i )