Texas Instruments TI Programmable 57 User Manual

BASIC
TROUBLESHOOTING
Remember
that
special
(single
variable)
function
keys
must
follow
the
number
they
work
on.
If
you
want
the
sine
of
30°
at
some
point
in
a
program,
the
keystroke
sequence
is
30
io
(=)
Key
—
this
completes
any
and
all
pending
operations
waiting
to
happen
inside
your
machine
—
be
careful
using
it.
(Be
careful
of
using
)
in
subroutines
—
discussed
later.
It's
better
to
use
1]
1)
keys
to
complete
calculations
when
in
a
subroutine,
because
[=]
will
complete
calculations
in
the
main
program
as
well.)
Labels
—
Be
sure
you
use
any
one
of
the
10
labels
no
more
than
once
in
any
program,
Angular
mode
—
If
you're
using
any
of
the
trig
functions,
remember
that
when
you
first
turn
the
calculator
on,
it
interprets
all
angles
as
degrees,
unless
you
change
things
with
the
Gad)
I
or
(=a)
Mam
key
sequences,
and
stays
there
until
you
change
again
(or
turn
the
calculator
OFF-ON).
Memories
—
Be
careful
to
check
and
see
that
all
operations
using
memories
are
working
with
the
correct
memory.
Also,
note
that
if
you
have
4
operations
pending
in
any
expression
in
your
program
—
that
memories
5
and
6
will
be
used
to
hold
some
of
the
expressions.
Any
numbers
stored
previously
in
memories
5
and
6
will
be
lost
ifalong
expression
involving
4
pending
operations
is
entered
later
on.
(Also,
memory
7
is
the
“t”
register
—
you'll
be
learning
more
about
it
in
the
next
section.)
Memory
zero
is
the
memory
used
with
the
Grd]
I
key
sequence
—
keep
that
in
mind,
too.
You'll
find
that
with
a
little
experience
your
programs
will
run
accurately
and
with
little
trouble.
You'll
also
develop
an
“eagle
eye”
for
a
potential
problem
area
once
it's
hit
you
one
time
—
so
the
best
way
to
learn
troubleshooting
is
to
keep
using
your
calculator.
After
awhile
you
probably
will
rarely
need
to
troubleshoot
any
of
your
programs.

Texas Instruments TI Programmable 57 Specifications

General

Brand	Texas Instruments
Model	TI Programmable 57
Category	Calculator
Language	English