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HP 46 User Manual

HP 46
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Page #33 background image
Statistical
Functions
6
Summations
Summation
calculations
use
the
>+
key
to
total
numbers
for
use
in
other
calculations
(the
letter
“X’"
—
sigma
—
is
the
Greek
equivalent
of
our
“'S").
The
HP-46
uses
storage
locations
5
through
8
to
store
accumulated
results.
Before
doing
a
statistics
problem,
erase
the
data
in
these
locations
and
the
stack
by
pressing
s
.
Otherwise
the
totals
CLR
stored
will
include
the
current
data
in
those
locations.
(This
operation
does
not
erase
the
data
in
storage
locations
1
through
4
or
9.)
Key
in
each
value
to
be
included
in
the
total
and
press
\/\z;)
The
number
of
entries
is
totaled
in
X
and
in
storage
location
number
5.
If
you
key
in
an
incorrect
value
and
you
have
not
pressed
>+,
press
|cx
and
enter the
correct
value.
If
you
have
already
pressed
>+,
key
in
the
mistaken
value
again
and
press
mmm
LZJ
)
5~
2+
also
totals
the
contents
of
Y.
To
total
x
and
y
values,
first
key
in
the
y
value
and
press
ENTER?.
Next
key
in
the
x
value.
Now
press
>
+.
To
delete
an
x,y
pair,
enter
both
values
and
press
mmm
>
—.
The
types
of
data
stored
in
locations
5
through
8
are
shown
below:
Storage
Location
Data
5
#
of
entries
6
>x?
7
2
X
8
2y
By
pressing
RCL
>
+
the
data
in
storage
locations
7
and
8
is
recalled
to
X
and
Y
and
printed
(the
stack
is
pushed
up
by
these
two
values).
To
recall
any
of
the
data,
press
RCL
and
the
appropriate
location
number.
TSee
‘Vector
Arithmetic’
for
a
further
explanation
of
this
feature.
27

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HP 46 Specifications

General IconGeneral
BrandHP
Model46
CategoryCalculator
LanguageEnglish

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