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HP HP-11C User Manual

HP HP-11C
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34
Section
2:
Memory
Stack,
LAST
X,
and
Data Storage
makes
it
easy
to
recover
from
keystroke
mistakes,
such
as
executing
the
wrong
function
or
keying
in
the
wrong
number.
For
example,
divide
287
by
13.9
after
you
have
mistakenly
divided
by
12.9:
Keystrokes
Display
287
287.0000
12.9
(5]
22.2481
Oops!
The
wrong
divisor.
12.9000
Retrieves
from
LAST
X
the
last
entry
to
the
X-
register
(the
incorrect
divisor)
before
[+]was
executed.
287.0000
Perform
the
reverse
of
the
function
that
produced
the
wrong
answer.
13.9(%]
20.6475
The
correct
answer.
Constant
Arithmetic
Because
the
number
in
the
T-register
remains
there
when
the
stack
drops,
this
number
can
be
used
as
a
constant
in
arithmetic
operations.
T
A
2
Y
=
X=ยป
Keys
=
To
insert
a
constant
into
a
calculation,
load
the
stack
with
the
constant
by
keying
the
constant
into
the
X-register
and
pressing
three
times.
Use
the
constant
by
keying
in
your
initial
argument
and
executing
your
planned
series
of
arithmetic
operations.
Each
time
the
stack
drops,
a
copy
of
the
constant
will
be
made
available
for
your
next
calculation
and
a
new
copy
of
the
constant
is
reproduced
in
the
T-register.

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HP HP-11C Specifications

General IconGeneral
BrandHP
ModelHP-11C
CategoryCalculator
LanguageEnglish

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