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HP HP-67 User Manual

HP HP-67
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144
Simple
Programming
After
drawing
the
flowchart,
you
would
go
back
and
substitute
groups
of
instructions for
each
element
of
the
flowchart.
When
the
program
was
loaded
into
the
calculator
and
run,
if
#2
was
larger
than
#1,
the
answer
to
the
question
‘‘Is
#2
larger
than
#1?”’
would
be
YES,
and
the
program
would
take
the
left-hand
path,
display
#2,
and
stop.
If
the
answer
to
the
question
was
NO,
the
program
would
execute
the
right-hand
path,
and
#1
would
be
displayed.
(You
will
see
later
the
many
decision-making
instructions
available
on
your
HP-67.)
As
you
work
through
this
handbook,
you
will
become
more
familiar
with
flowcharts.
Use
the
flowcharts
that
illustrate
the
examples
and
problems
to
help
you
understand
the
many
features
of
the
calculator,
and
draw
your
own
flowcharts
to
help
you
create,
edit,
eliminate
errors
in,
and
document
your
programs.
Problems
1.
You
have
seen
how
to
write,
load,
and
run
a
program
to
calcu-
late
the
area
of
a
circle
from
its
radius.
Now
write
and
load
a
program
that
will
calculate
the
radius
r
of
a
circle
given
its
area
A
using
the
formula
r
=
VA/mr.
Be
sure
to
slide
the
W/PRGM-
RUN
switch
werem[[[[Illrun
to
W/PRGM
and
press
[
first
to
clear
program
memory.
Define
the
program
with
B 3
and
@
RTN).
After
you
have
loaded
the
program,
run
it
to
calculate
the
radii
of
circles
with
areas
of
28.27
square
inches,
113.10
square
meters,
and 254.47
square
miles.)
(Answers:
inches,
meters,
miles,
2.
Write
and
load
a
program
that
will
convert
temperature
in
Celsius
degrees
to
Fahrenheit,
according
to
the
formula
F
=
1.8
C +
32.
Define
the
program
with
(1]
and
03
and
run
it
to
convert
Celsius
temperatures of
—40°,
0°,
and
+72°.
(Answers:
|
-40.00]°
F,
[32.00
|°F,
[161.60]°F.)
3.
Immediately
after
running
the
program
in
Problem
2,
create
a
program
that
will
convert
temperature
in
degrees
Fahrenheit
back
to
Celsius
according
to
the
formula
C =
(F-32)5/9,
defin-
ing
it
using
EJ
(c)
and
@
[RTN),
and
load
it
into
program
memory
immediately
after
the
program
you
loaded
in
Problem
2.
Run
this
new
program
to
convert
the
temperatures
in
°F
you
obtained
back
to
°C.

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HP HP-67 Specifications

General IconGeneral
BrandHP
ModelHP-67
CategoryCalculator
LanguageEnglish

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