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65
IX
PROGRAMMING CALCULATION
1. Explanation of operation keys.
00
This key is used to start
the
execution of a program either at the beginn·
ing or at a Halt order (to enter or read out).
~
00
This key
operation is used to
write in
a program from the key board.
The
step
counter
is automatically reset at this time.
~
This key is used for writing in a HALT command. When this is used in
a
program, it acts as a stop order to enter a variable or to check the results
of
calculation
up to that point.
~ ~
:
This
key
is used to
write in
a
END
command which ends program
execution
and indicates
the
results of operation
up
to that point.
2.
Before programming calculation
It is
not
necessary to clear an
existing
program already in the calculation to write a new
program. The existing program is automatically cleared and
the
new program is stored.
When the power
source
switch is turned off, the program is also
cleared.
3.
How
to
write
in a
program. (Learn method)
1)
Program method
Operation
o
00
. . .
.
.
.
.
.
.
. . .
.
.
.
.
.
. . .
..
Clear the step counter and designate
program
V
mode.
Perform
a calculation
by
key
operation
in manual. Proce-
dure of
key
operation
is mem-
orized in
the
program me-
mory.
V
~~
.......
.
.....
.
....... .
In program mode,
all the key operations
other than read-in key
operation next
to
@]
key
and
~
key
operation
in
succession and
00
key operation,
are
written· in the program
memory.
Write
in a end
instruction. At this time the
step
counter is cleared
and the
execution
mode of program is designated.
The
following explanation of
setting up program and automatic
calculation
of a
program,
shall
be made by using a simple
example:
Calculation of
the area
of
a circle.
Formula
to
obtain area of a circle: A
=
1Tr2
To calculate the area of
a
circle having radius
r
=
7, 7
00 0 00
0
0
is made as
a manual calculation. If the radius is 9, the same operation is
.repeated
except the
value of the radius.
That is, 9
00 0 00
0 0
(underlined part is the same).
In
a complicated calculation, there will be many repetitive operation. In order to
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