Casio fx-180P User Manual

(1) Power switch
Mave the switch to the right 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 !ost.
{2) Disptay
Units of angle
Mantissa Exponent
The disptay shows input data, intermediate resuits and resutts af operation, The
mantissa section displays up to 10 digits {9 for negative numbers}. The exponent
section displays up ta +99.
The fraction and angle in the sexagesimal scale are displayed as follows:
456 3 isdisplayed ....., 456412423.
12°34°56.7"' is displayed... .| 12934°756.7
“€" {terror check, see page 10) may be displayed in the position of the mantissa‘s /east
significant digit. "OEG", "RAD" or “GRA” (angular unit), "INV" (when the @ key
has been pressed), “M’’ (when data is stured in independent memory), K" (during
calculation with constants), ‘SD’ (during calculation of standard deviation), “LR
(during catculation of regression analysis}, and/or ‘““fdx (during execution of
integral}, as well as ““LRN'’ and “ENT’’ will be displayed to indicate the operating
mode,
Auto power-off
If the calcwator is left with tha power switch at the “ON position (except white
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 GJ 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
angutar unit and operating mode are not fost.)
(3) fhe tnverse key {symbotized by & }
Activates the functions printed in brown on the keyboard,
When the [ key is pressed, “INV*’ appears on the display and the subsequent pressing
of & makes “INV” disappear, ,
(4) @g Mode key (symbolized by m@) 9
To put the calculator into the desired operating mode or select a specific angular unit,
Press first, then,@,....... or),
: Manual and programmed catcutations can be executed,
° ©)
0 : “LRN is displayed. Programs can be written,
@ : “ fdx" is displayed, Integral can be carried out.
“LR” is displayed, Calculation of regression analysis can be executed,
ae ae
&
eae i cain a eas esos To, = .
@
:
"SO"
is
displayed,
Calculation
of
standard
deviation
can
be
executed.
To carry
out
manual
or
pragrammed
calculation,
select
the
RUN
mode
(press
4)
and
@)
° (@] : “DEG” is displayed, indicating that degrees’ is selected as the unit of
angle,
|
8)
“RAD”
is
displayed,
indicating
that
“radians”
is
selected
as
the
unit
of
angle. :
*
3)
“GRA”
is
displayed,
indicating
that
“gradient”
is
selected
as
the
unit
of
i angle.
(Note: 90 degrees = 1/2 radians = 100 gradients)
q > Fix’ assignment (assignment for the number of fractional digits),
H
Specify
the
number
of
digits
of
the
fractional
part
after
pressing
(4)
and
|
@.
(Example:
(three
fractional
digits
are
effective))
q : Scientific’ assignment {assignment for the number of significant digits}.
Specify the number of significant digits after pressing #8) and ©).
1 (Example: @)
@
~z)(@)
:
“Normal”
assignment.
Press
in
this
sequence
to
release
the
‘‘fix’’
or
“scientific” assignment.
4To clear programs, press this key, foltowing the fl key. (@ denotes this “program
clear’ sequence, }
4 Once power is off, the “fix and ‘scientific’ assignments will be released but the
operating mode (“LAN”, ” fax, "LR" or “SD") and the angular unit ("DEG",
“RAD” or "GRA") will be kept,
(S) &) — &, ©) Numeral and decimal point keys
nters numerals. For decimal places, use the (Jkey in its logical sequence,
Varying functions will be designated when you press l) and a numeral key, as
summarized below,
‘ fy GD : Cutting off internal data
The internal data {held in the Y-register) will be cut off so as to be equal
to the displayed data.
*
4}
G2:
Random
number
generation
i
i 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 6 “STATISTICAL CALCU-
LATIONS”, : :
eS : Calculation of ¥ (average of x)
$ @@ : Calculation of x0, (poputation standard deviation of x)
&
4
:
Calculation
of
xn
(sampie
standard
deviation
of
x)
.
e@]@
:
Calcutation
of
¥
average
of
y}
b ED: Calculation of yn (population standard deviation of y)
& @&)@ : Calculation of yOn.1 (sample standard deviation of y}
ew : Calculation of A (constant terms in regression equations)
» @&) - Calculation of 8 (regression coefficients}
# JP : Calculation of r (correlation coetficients)

Casio fx-180P Specifications

General

Brand	Casio
Model	fx-180P
Category	Calculator
Language	English