HP 25 Owner's Handbook Manual page 89

Programmable scientific calculator
Table of Contents

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Programming
85
To
see
how
0
1
PAUSE
Ican
be used in
a
program
,
we'll
modify
the cylinder
volume
program in the previous
example.
In the
new program the
area of
the base
will only
be briefly displayed
before the
volume
is calculated
.
This example will also show
how different programming
approaches can
be taken to
solve
the
same
problem.
To key in the program,
set the
PRGM-RUN
switch
to PRGM
PRGM
~
RUN
and
press
I
PRGM
I
to
clear
program memory and
display
step
00. Then key in the following list
of
keys.
Press
I1.I
w
11. 1
0
o
0
1
PAUSE
I
Display
I
01
15 02
I
02
15 73
103
61
1
04
14 74
105
61
I
Squares
the
radius
in X.
I
Places
7T
in
X.
I
Calculates
the
area of
the base.
I
Pauses to
show the base area
for
one second.
I
Calculates final volume of can.
This
program
also assumes
the height has been
entered
into the
Y -register
and the
radius has been keyed
into the
X-register. If
you
have
stored
the instructions
,
set
the PRGM-RUN
switch
to RUN
P R G M ' " RUN
and
press
0
I
PRGM
I so
that the calculator
will
begin
execution
from
step
00
.
Now complete
the table
below using
the
new program
.
Height
Radius
20
15
10
5
Press
Display
20
Imim
I
20.00
15 ~
706.86
14137.17
l0lmim
10.00
Area of Base
Volume
?
?
?
?
Enter
the height into
the
V-register.
Area of base
is
displayed
for
one second.
Program
stops,
displaying the
volume.
Enter the second
height into Y.

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