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Casio fx-180P - Program Management and Control

Casio fx-180P
21 pages
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®
Program
step
©
The
program
is
stored
{written)
in
the
calculator
as
shown
below.
No,
of
®
The
program
capacity
is
38
steps.
The
program
may
be
di-
steps
Programa
vided
into
two
areas
(P1
and
2)
and
each
can
be
used
inde-
PT
pendently
of
the
other.
ea
ee
®An
error
results
(‘'E”
displayed)
when
there
is
an
attempt
to
write
the
39th
step.
No
subsequent
steps
can
be
written.
In
this
case,
press
&
to
release
the
error
check.
*#After
the
program
is
started,
instruction
steps
are
executed
one
after
another
and
execution
does
not
stop,
But
it
is
needed
to
halt
execution
for
inputting
a
data
or
reading
a
result.
This
is
accomplished
by
64)
and
(9)
fail)
,
When
the
end
of
a
program
is
reached,
execution
stops
automatically
and
the
state
is
displayed.
So,
11LT
may
be
absent.
@
Each
function
comprises
a
step
of
program.
The
depression
of
keys
in
a
certain
sequence
produces
a
single
program
step
if
it
generates
a
single
function.
1}
Functions
generated
by
the
depression
of
a
single
key
2
3
4
5
6
Ex.)
Numeral
value,
+/-,
+,
—,
x.
=,
=,
[{,
J,
sin.
log,
ENT
ia
lapeveae
ert
atts
2)
Functions
generated
by
the
depression
of
a
two-key
sequence
Ex.)
INV
x7,
INV
J,
hyp
sin,
INV
sing’,
INV
XeY,
INV
x¥
INV
R>P,
Kin
2,
INV
RAN#,.......
3)
Functions
generated
by
the
depression
of
a
three-key
sequence
Ex.)
INV
XK
5,
INV
hyp
sin>',
MODE
&
3
(Assign-
ment
for
the
number
of
significant
digits),
Kin
x
3
(Multiplication
with
contents
of
K3
register),
*If
you
have
misoperated
when
writing
a
pragram
fi.e.
in
the
LRN
mode),
press
the
sequence
of
&)
and
perform
the
correct
operation,
*
The
depression
of
a
data
entry
key
(©),
@
—
@))
followed
by
69,
62,
8,
EJor
@
will
not
be
written
in
if
such
a
sequence
Immediately
follows
the
depression
of
@).
Note
that
one
of
the
functions
which
does
not
follow
a
numeric
data
will
be
written
in
as
a
step,
24
Kin
x
1
Kin
+2
sin
Mb6H6se6
:
,
Not
written
in
M6O8
oo
EE
ee
es
Not
written
in
Written
(2
steps)
[se
~31-
a
a
ecm
eel
tain
AAS
Ze
preemies
hy,
st
eitecctid
mre
a
cee
we
Teepe
S,
steed
4
=
Haw
to
erase
a
program
An
did
program
will
be
automatically
overwritten
by
a
new
program
if
the
same
program
number
is
assigned
to
them.
.
To
efase
a
program
for
making
corrections
or
erase
all
38
steps,
operate
the
foliowing
sequdnce.
©
To
Brase
program
P74
or
P2:
4
\
fete)
(OD
(or
FEZ
)
Go)
he)
.
q
|
Selects
the
LRN
mode
@
Toprase
both
P1
and
P2:
-
ee)
DD
sj
=
Jump
instructions
There
are
two
types
of
jump
instructions
as
follows,
1.
Unconditional
return
to
the
first
step
of
program:
RTN
rite
the
sequence
of
6s)
&9
at
the
end
of
a
program
to
execute
it
repeatedly.
Ekample:
Let
us
use
the
unconditional
return
instruction
in
the
regular
octa-
hedron
program
explained
on
page
29.
{In
this
case,
the
formula
must
i
be
modified
to
S
=a?
x
2/3
.)
Operation:
or
|
MOMS
O203H0B
4
([Step|instruction
:
tT
T
No.
step
Value
of
a
Return
instruction
Flowchart
Processing
OPERATION
READ-OUT
{Select
RUN
mode}
wg)
po
=
6
(Designate
program
No.}
Py)
Result
S
for
(Fora
=7)
7
|
169.7409791
au,
a=?
Result
S
for
15)
158
|
779.4228634
am.
pat
.
mf
program
includes
an
RTN
instruction
but
neither
ENT
nor
HLT,
the
program
4
'
{Fora
will,
once
started,
not
stop
in
an
endless
loop.
To
stop
the
program
in
such
a
case,
press
G3.
—32-

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