Casio FX-795P User Manual

CHAPTER
5°
Programming
with
BASIC
Language
The
DEFM
command
cannot
only
be
used
in
manual
operation
but
can
also
be
used
in
a
program.
For
example,
if
we
wish
to
use
array
variables
Z
(0)
to
Z
(20)
in
a
program
and
assign
a
numeric
value
J
to
Z
(J),
the
program
can
be
created
as follows.
Example:
1@
DEFM
20°
---20
variables
are
expanded.
FOR
J=@
TO
2
30
Z(
JS
)=d
Numeric
values
are
assigned
to
the
array
variables.
4@ NEXT. J
*When
the
DEFM
command
is
used
in
a
program,
the
number
of
variables
will
not
be
displayed
when
executed.
The
DEFM
command
is
also
used
to
display
the
current
number
of
variables.
DEFM
only
will
be
executed
in
this
instance.
om ory
DEAM ed AesZi26 DEFM? 2
*When
“DEFM”
only
is
used
in
a
program,
the
number
of
variables
will
be
dis-
played
when
executing
the
program.
Notes:
1. If the variables ar
power is turned 0
*The
variables
will
return
to
the
standard
26
if
NEW
ALL
the
WRT
mode
or
if
changed
over
to
the
DIM
mode.
e
expanded,
that
specification
will
be
saved
even
when
the
¢.
Execute
DEEM
0
to
return
to
the
standard
26
variables.
fe} is operated in
fee Zi 26 DEEMED
BOHMer
2. If
the
number
of
bytes
used
to
expand
the
variables
is
specified
in
excess
of
the
remaining
free
area,
a
MEMORY
OVER
error
(Error
1).
will
occur
to
protect
the
stored.
programs
and
data.
98
5-3 Variables
< Precautions in Using Variables >
1) If the names of the numeric variable and character variable are the same, the
same.memory space will be used. For this reason, it will therefore not be
possible to use a numeric variable A and a character variable A$ at the same
time. If the following program is executed, an error (Error 6) will occur on
line 20 . (See page 68 for details.)
10
A$=*CASIO%
Assigns
character
string
“CASIO”
to
charac-
ter
variable
A$.
20 PRINT A... Displays the content of numeric variable A.
38 END
* Excluding array variables in the DIM mode.
2)
Care
should
be
taken
when
using
an
array
variable
in
the
DEFM
mode
since
it
uses
the
same
memory
space
as
some
of
the
simple
variables.
In
the
figure
shown
below,
the
variables
combined
with
equal:
signs
(=)
use
the
same
memory
space.
(Although
numeric
variables
are
shown;
these
relations
are
the
same
as
for
character
variables.)
A=A\(0)
B= A(1)= B(0)
C=A(2)= B(1)= C(0)
D=A(3) )
Y= A= B= CH=
Z=AQ)= BM =Ch3=
Simple variables Array variables
For example, if we execute the following program, the content of variable C
will be 10.
1@ DEFM
20 C=e@
30 A(2)=10
4@ PRINT C
5@ END
3)
Since
variables
are
common
in
all
program
areas,
care
should
be
taken
in
|
assigning
variables
when
creating
programs
using
multiple
program
areas.
99

Casio FX-795P Specifications

General

Brand	Casio
Model	FX-795P
Category	Desktop
Language	English