Texas Instruments TI Programmable 57 User Manual

SECTION 2: ADVANCED/
“SLIDE RULE” KEYS
ConveERsIONs:
Your
calculator
is
equipped
with
two
keys
that
make
it
especially
handy
in conversion
situations.
(2nd)
M13
—
Decrees, Minutes,
Seconps
To
Decimat
Decrees
ConveRSIONS
This
key
sequence
converts
an
angle
expressed
in
degrees
minutes
and
seconds
to
decimal
degrees.
The
[inv]
[24]
MB
key
sequence
does
just
the
opposite
—
converting
from
decimal
degrees
to
degrees
minutes
and
seconds.
This
conversion
is
handy
if
yok
have
to
do
arithmetic
with
angles,
or
with
time
—
expressed
in
hours
minutes
and
seconds.
To
enter
and
convert
an
angle,
just
follow
the
format
shown
on
the
key
label:
* Enter the number of degrees
¢
Press
the
decimal
point
key,
[=]
¢ Enter the number of minutes (2 digits — less than 60)
¢
Enter
the
number
of
seconds
(2
digits
—
less
than
60)
¢ Press (nd) [EM
The
decimal
equivalent
of
the
angle
(or
time)
is
now
displayed.
The
reverse
conversion
is easy
to do
also:
¢
Enter
the
angle
(whole
number
and
decimal
part)
*
Press
[INV]
[2nd]
ES
The
angle
is
now
displayed
as
the
number
of
degrees,
followed
by
a
decimal
point,
followed
by
the
number
of
minutes
and
seconds.
Example:
Convert
47°05'38"
to
decimal
degrees
and
back
to
degrees
minutes
and
seconds
again.
Press DispLAy/CoMMENTS
47.0538 (2nd) EES 47.093889 angle decima! equivalent
(inv)
foms
|
47.0538
back
to
degrees,
minutes,
seconds
Note
that
you
can
also
convert
hours,
minutes,
and
seconds
to
decimal
form
by
the
same
technique.

Texas Instruments TI Programmable 57 Specifications

General

Brand	Texas Instruments
Model	TI Programmable 57
Category	Calculator
Language	English