Casio fx-3800P User Manual

(1) Power switch
Slide
the
power
switch
up
to
activate
the
calculator
and
“ON”
is
displayed.
Even
when
power
is
off,
the
contents
held
in
independent
memory
and
constant
memory
registers,
and
the
programs
are
not
lost.
(2) Display
Power
ON
Mode
display
Angular
unit
Program
area
LN
LT
TN
DFE
TN
ON
@
M
K
LRN
SD
LR
DEG
RAD
GRA
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Exponent
Mantissa
The
display
shows
input
data,
intermediate
results
and
results
of
operation,
The
mantissa
section
displays
up
to
10
digits
(9
for
negative
numbers),
The
exponent
section
displays
up
to
+99,
The
hexadecimal
display
and
angle
in
the
sexagesimal
scale
are
displayed
as
follows.
ABCDEF,,
(11259375,,)
isdisplayed
. . .
AbCdEF.
#4
12°34'56.7"
isdisplayed...........,
12934°556.7
“EB”
(error
check,
see
page-11)
may
be
displayed
in
the
position
of
the
mantissa’s
least
significant
digit.
“DEG”,
“RAD”
or
“GRA”
(angular
unit),”@"’
(when
thea)
key
has
been
pressed),
‘‘M’’
(when
data
is
stored
in
independent
memory),
“K”
(during
calculation
with
constants),
‘SD’
(during
calculation
of
standard
deviation),
“LR”
(during
calculation
of
regression
analysis),
and/or
I’,
“TW,
“MI
or
“IV
(program
area),
as
well
as
“LRN”
and
“ENT”
will
be
displayed
to
indicate
the
operating
mode.
Auto
power-off
If
the
calculator
is
left
with
the
power
switch
at
the
“ON”
Position
(except
while
programmed
calculation),
the
auto
power-off
function
automatically
turns
off
the
power
in
approximately
6
minutes,
thereby
saving
battery
life.
Power
is
resumed
either
by
pressing
the
G3
key
or
by
re-operating
the
ON-OFF
switch.
(Even
when
power
is
off,
the
contents
of
memories
and
written
programs
as
well
as
the
angular
unit
and
operating
mode
are
not
lost.)
(3) Shift key
Activates
the
functions
printed
in
brown
on
the
keyboard,
When
the
key
is
pressed,
‘(§)’’
appears
on
the
display
and
the
subsequent
pressing
of
makes
“(S)"’
disappear.
(4) Mode key
To
put
the
calculator
into
the
desired
operating
mode
or
select
a
specific
angular
unit,
Press
(woe)
first,
then@#,0)7,0),@.....
,or
(8).
See
page
9
for
detail
on
the
operation
mode
and
calculation
mode.
e
@}
:
“LRN”
is
displayed.
Program
can
be
written.
e
©:
Manual
calculations
and
Program
execution
can
be
performed.
e
©
:
Arithmetic
calculations
and
function
calculations
can
be
performed.
—3-
a
r
@
Binary/octal/decimal/hexadecimal
conversions
and
calculations
can
be
performed.
®
(2)
“LR”
is
displayed.
Calculation
of
regression
analysis
can
be
executed.
e
@)
“SD”
is
displayed.
Calculation
of
standard
deviation
can
be
executed,
*
To
carry
out
manual
or
programmed
calculation,
select
the
RUN
mode
(press
(a)
and
ca)
©
aan
te)
“DEG”
is
displayed,
indicating
that
‘‘degrees’’
is
selected
as
the
unit
of
angle,
e =} "RAD" is displayed, indicating that ‘‘radians’’ is selected as the unit of
angle.
©
(vox)
(6)
“GRA”
is
displayed,
indicating
that
‘’grads’
is
selected
as
the
unit
of
angle.
(Note:
90
degrees
=
m/2
radians
=
100
grads)
e
:
"Fix"
assignment
(assignment
for
the
number
of
fractional
digits).
Specify
the
number
of
digits
of
the
fractional
part
after
pressing
(8)
and
@.
(Example:
@®)
(three
fractional
digits
are
effective))
e
:
“Scientific’’
assignment
(assignment
for
the
number
of
significant
digits).
Specify
the
number
of
significant
digits
after
pressing
and
@).
(Example:
(0)
(6)
()
)
@
(wo)
(S}
:
‘’Normal’’
assignment.
Press
in
this
sequence
to
release
the
‘fix’
or
scientific’ assignment.
*
Once
power
is
off,
the
‘‘fix’’
and
‘scientific’
assignments
will
be
released
but
the
operating
mode
("“LRN”,
‘‘LR”
or
SD")
and
the
angular
unit
(“DEG”,
“RAD”
or
“GRA”)
will
be
kept.
(5) G)—(S), ©) Numeral and decimal point keys
Enters
numerals.
For
decimal
places,
use
the
G)
key
in
its
logical
sequence.
*Varying
functions
will
be
designated
when
you
press
SH
and
a
numeral
key,
as
summarized below.
©
Sit)
©
:
Cutting
off
internal
data
The
interna!
data
(held
in
the
Y-register)
will
be
cut
off
so
as
to
be
equal
to
the
displayed
data.
Random number generation
A
random
number
between
0.000
and
0.999
will
be
generated.
*Use
following
sequences
in
calculation
of
standard
deviation
and
in
regression
analysis.
For
more
details,
refer
to
the
chapter
7
‘STATISTICAL
CALCU-
LATIONS”.
@
(HF)
GP
:
Calculation
of
¥
(average
of
x)
@
(SHiFT)
:
Calculation
of
x0,
(population
standard
deviation
of
x)
© Gai) Ge:
oe
Gar
&
:
Calculation
of
xOn.1
(sample
standard
deviation
of
x)
e
SF)
-
Calculation
of
¥
(average
of
y)
@
(SHIFT)
:
Calculation
of
yOn
(population
standard
deviation
of
y
)
@
(SHIFT)
:
Calculation
of
yOn-1
(sample
standard
deviation
of
y)
our
@
:
Calculation
of
A
(constant
terms
in
regression
equations)
eur
2
-
Calculation
of
B
(regression
coefficients)
(sur)
@
:
Calculation
of
r
(corretation
coefficients)
—-4-
1o> jgne rien ests tment oat ig ia piensa

Casio fx-3800P Specifications

General

Brand	Casio
Model	fx-3800P
Category	Calculator
Language	English