Texas Instruments TI Programmable 57 User Manual

A PRACTICAL CASE
We'll
be
showing
you
many
ways
to
use
your
programmable
calculator
for
a
variety
of
school,
home
and
recreational
applications.
You'll
see
with
each
example
the
ease
and
power
the
machine
can
bring
to
everyday
mathematics.
Let's
take
a
quick
look
at
a
more
practical
case.
In
this
situation
let's
say
that
you
(or
someone
you
know)
ran
up
a
rather
large
bill
(say
$500)
on
a
credit
card
account.
Credit
cards
are
convenient,
but
they
really
“sock
you”
with
interest
charges
—
typically
1.5%
per
month.
You'd
like
to
weigh
several
alternatives
on
payments
and
get
a
picture
as
to
what
the
best
course
of
action
would
be.
Paying
back
the
cash
right
away
would
be
the
best
way,
of
course,
but
you
might
not
be
able
to
afford
it.
However,
if
you
string
the
payments
out
over
a
long
period,
it
would
cost
quite
a bit.
Your
calculator
can
help
by
speedily
letting
you
calculate
the
alternatives,
For
right
now,
let's
say
you'd
like
to
know
what
your
monthly
payments
would
be
if
you
paid
off
in
3,
6,
9,
or
12
months;
and
how
much
you'd
be
paying
in
interest
in
each
case.
Here's Att You Do:
First,
turn
your
calculator
off
and
on
—
to
clear
everything—
and
then
push
the
following
keys.
(Remember,
we'll
be
covering
all
the
details
later
—
for
now
just
see
what
your
calculator
will
do
for
you!
Push
each
key
carefully.)
(At
this
point
your
display
should
read
27
00.
If
it
doesn’t,
turn
your
calculator
OFF
and
ON,
and
go
back
and
re-key
carefully.)
Now press:
1-6

Texas Instruments TI Programmable 57 Specifications

General

Brand	Texas Instruments
Model	TI Programmable 57
Category	Calculator
Language	English