Casio FX-795P User Manual

88
5-1
Writing
Programs
The
example
shown
below
is
a
program
using
BASIC
in
which
the
value
of
y
is
calculated
with
the
formula
y
=
2x”
+
91x
+
125
by
inputting
the
value
of
x.
1@
INPUT*x
=”
,X
20
Y=2*Xt24+91*X+125
3@
PRINT*y=“3Y
4@ GOTO 18
5@ END
A
BASIC
program
is
a
collection
of
“lines”
with
each
line
being
composed
of
numerals
(integers
from
1
to
9999
can
be
used)
called
line
numbers
and
state-
ments
(commands
such
as
INPUT
or
formulas
such
as
Y=2%*X
t
2+9
1
X+125
).
The
program
will
also
be
executed
in
successive
order
starting
from
the
smallest
line
number.
We
will
start
now
by
inputting
the
above
program.
Press
7).
The
symbol
“WRT”
should
appear
in
the
upper
part
of
the
display.
Symbol indicating the
“WRT”
mode.
Remaining
capacity
of
the
free
area
BUZZER
war
°°
(Sha
a
to Naa a
Fabre wees Tet “7S
Blinks—t
—
Status
of
the
program
areas
The
program
must
be
written
only
when
in
the
WRT
mode
as
shown
above.
The
large
characters
“PF
1
33456789"
indicate
the
usage
state
of
the
program areas.
*The
computer
is
provided
with
10
program
areas
(PO
~
P9)
in
which
multiple
programs
can
be
stored
separately.
The
program
area
can
be
changed
by
press-
ing
any
number
key
from
&
to
&
after
pressing
9
.
The
blinking
number
indicates
the
program
area
currently
specified.
The
num-
bers
displayed
indicate
open
areas.
If
a
program
has
been
written,
that
area
num-
ber
changes
to
a
cursor
(_).
In
the
display
shown
below
for
example,
the
area
specified
is
PS
and
programs
are
already
written
in
areas
Pi,
P8
and
P9.
5-1 Writing Programs
The number at the upper right part of the display indicates the remaining capac-
ity (number of bytes) of the area in which programs or data can be written (free
area). The free area will be 15584 bytes, when nothing is written and these
numbers will decrease each time a program or data is written.
NEWAMICI
es}
This operation erases the programs in all program areas and variable contents,
and prepares program area PO.
Let us now write the previously mentioned program.
AeA Ten) pI Kedah CK bs
26MEBwWRmHWSITRIK HEI5Es)
SS) ooh ES Gar 4 Yee (=) or] FV ee
AGlere3 eed
ole.
E JUN JCD Jlexe
The program will be stored with the above key operation. Do not forget to press
the & key at the end of each line since the line will be stored only by pressing
©«] . Since one-key input is also possible for frequently used commands such as
INPUT and PRINT, speedy inputs will be possible. (For example, the five
characters “INPUT” can be input by pressing] ). COIW(PI@IGH can also be
applied.)
© Method of Correcting Program Errors
1) When an error is found during input before @4 is pressed:
Move the cursor to the error position by a cursor movement key ( [4] or &))
and correct the error. (Same as in Chapter 2)
2) When an error is found after storing the line by pressing &@ :
Enter LIST line No. in the WRT mode to display the contents of the line
and correct as in 1) above.
fq
89

Casio FX-795P Specifications

General

Brand	Casio
Model	FX-795P
Category	Desktop
Language	English