Finding Days Between Dates; Defining Payment Method - Texas Instruments TI-89 Software Manual

Finding Days between Dates

Use the date function
actual-day-count method.
Catalog Variables/ Arguments
date1 , date2
dbd(
¦
date1 and date2 can be numbers or lists of numbers within the range of the dates on the
standard calendar. If both date1 and date2 are lists, they must be the same length.
¦
date1 and date2 must be between the years 1950 through 2049.
You can enter date1 and date2 in either of two formats. The decimal placement differentiates
the date formats.
¦
MM.DDYY (United States)
¦
DDMM.YY (Europe)

Defining Payment Method

The and
Pmt_End
annuity due. When you execute either command, the
requires any arguments.
Pmt_End ( )
(payment end) specifies an ordinary annuity, where payments occur at the end of
Pmt_End
each payment period. Most loans are in this category.
On the
TVM Solver
Pmt_Bgn ( )
(payment beginning) specifies an annuity due, where payments occur at the
Pmt_Bgn
beginning of each payment period. Most leases are in this category.
On the
TVM Solver
pmt_at
is a variable which specifies annuity due depending on what value has been stored to
pmt_at
it. If , then annuity due=
pmt_at=1
the 2 °
Finance Application for the TI-89 à TI-92 Plus
to calculate the number of days between two dates using the
dbd(
)
functions specify a transaction as an ordinary annuity or an
Pmt_Bgn
's line, select
PMT:END BEGIN
's line, select
PMT:END BEGIN
. If
Begin
folder.
Finance
Definition
Number of days between 2 dates.
TVM Solver
is the default.
Pmt_End
to set to ordinary annuity.
END PMT
to set
BEGIN PMT
, then annuity due=
pmt_at=0
is updated. Neither function
to annuity due.
. This is located in
End
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