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HP HP-25 User Manual

HP HP-25
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Squaring
To
square
a
number
in
the
displayed
X-register,
press
[}
.
For
example,
to
find
the
square
of
45:
Press
Display
5B
To
find
the
square
of
the
result:
Press
Display
B
4100625.00
Using
Pi
The
value
7
accurate
to
10
places
(3.141592654)
is
provided
as
a
fixed
constant
in
the
HP-25.
Merely
press
[
whenever
you
need
it
in
a
calculation.
For
example,
to
calculate
37:
Press
Display
3@
Example:
Trencherman
Buck
Mulligan
looks
into
a
recent
edi-
tion
of
the
Guinness
Book
of
Records
and
finds
that
the
largest
pizza
ever
baked
had
a
diameter
of
21
feet.
If
his
appetite
were
equal
to
the
task,
how
many
square
feet
of
pizza
would
Mulligan
have
to
devour
in
order
to
consume
all
of
the
world’s
largest
pizza?
Area
=
77
d
=1
21
2
2
Press
Display
21
I
2
@
o=
B
[5
x]
Square
feet
of
pizza.
Pressing
[21
causes
the
results
in
the
automatic
memory
stack
to
lift.

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HP HP-25 Specifications

General IconGeneral
BrandHP
ModelHP-25
CategoryCalculator
LanguageEnglish

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