TI-83 Plus Tables and Reference Information 731
Amortization
If computing bal(), pmt2 = npmt
Let bal(0) = RND(PV)
Iterate from m = 1 to pmt2
+−−=
−×= −
)(I)1()(
))]1((12[I
m
m
PMTRNDmbalmbal
mbaliRNDRND
then:
)2()( pmtbalbal =
)1()2()(Pr pmtbalpmtbaln−=
Σ
)(Pr)()112()( nPMTRNDpmtpmtInt Σ−×+−=
Σ