Texas Instruments TI Programmable 57 User Manual

n — THE "GO TO"
KEY SEQUENCE
(2s) nn — THE
“GO TO A STEP NUMBER”
KEY SEQUENCE
[GTO] n — Tue “Go To” Key Sequence
This
key
sequence
can
be
used
as
part
of
a
program
(when
entered
in
“learn”
mode),
or
right
off
the
keyboard
(when
out
of
learn’
mode).
Pressing
n,
where
n
is
a
labe]
number
(0
through
9)
immediately
moves
the
program
pointer
tothe
label
number
n,
In
a
progfam,
when
the
program
pointer
encounters
a
n
instruction,
it
goes
right
to
label
n,
and
continues
on
from
that
point.
(The
n
sequence
is
stored
as
one
program
step
—
with
a
“merged”
code.)
The
key
creates
what
is
called
an
"unconditional
transfer”
when
you
use
it
in
a'program.
No
matter
what's
going
on,
when
the
program
pointer
comes
toa
n,
it
goes
right
to
the
program
label
n
and
continues
running.
There
are
other
types
of
program
transfers
made
possible
by
combining
the
n
key
sequence
with
other
keys.
These
other
keys
let
you
place
a
condition
right
before
the
n
instruction.
When
you
use
these
other
keys
,
youcan
build
decision
points
into
your
program
—
and
create
what
are
called
conditional
transfers.
The
n
sequence
is
handy
in
a
variety
of
situations,
You
can,
for
example,
write
a
long
program
that
performs
several
different
functions.
If
you
label
each
function
with
its
own
label
number,
you
can
easily
use
each
function
individually
—
without
running
the
entire
program.
When
out
of
“learn'’
mode
just
press
n
(the
label
number
of
the
function
you
want),
and
then
start
the
program
with
the
key.
The
program
pointer
will
start
up
from
the
labeled
point.
[GTO]
[2nd]
nn
—
Tue
“Go
To
a
Step
Numser”
Key
SEQuENCE
This
key
sequence
can
be
used
only
when
out
of
“learn”
mode.
It
simply
lets
you
position
the
program
pointer
at
any
step
number
you
choose,
When
out
of
“learn”
mode,
if
you
press
,and
then
any
two
digit
program
step
number
(00-49),
the
program
pointér
immediately
moves
to
that
step
number.
This
feature
is
especially
handy
if
you
want
to
change
or
correct
a
program
step
(see
editing
keys
—
discussed
later);
or
if
you'd
like
to
start
the
program
pointer
from
some
unlabeled
point
in
a
program,
Try
this
on
your
calculator.
Turn
it
OFF,
then
ON,
and
press
(2nd)
16.
Now
press
.
The
display
reads
16
00,
telling
you
that
you've
moved
the
program
pointer
to
step
location
16.
In
similar
fashion
you
could
locate
the
program
pointer
at
any
step:
0
through
49.
(Trying
to
go
beyond
step
49
results
in
a
flashing
error
indication).

Texas Instruments TI Programmable 57 Specifications

General

Brand	Texas Instruments
Model	TI Programmable 57
Category	Calculator
Language	English