Casio CFX-9800G User manual

yenuew sJeumQ DO0086-XAD
~ CASIO COMPUTER CO,LTD.
6-1, Nishi-Shinjuku 2-chome
Shinjuku-ku, Tokyo 163-02, Japan
SAQ503-A
@
Printed
in
China
U.S.
Pat.
4,410,956

GUIDELINES LAID DOWN BY FCC RULES FOR USE OF THE UNIT
iN THE U.S.A. (not applicable to other areas).
NOTICE
This
equipment
has
been
tested
and
found
to
comply
with
the
limits
for
a
Class
B
digital
device,
pursuant
to Part
15
of
the
FCC
Rules.
These
limits
are
designed
to
provide
reasonable
protection
against
harmful
interference
in
a
residential
in-
Stallation.
This
equipment
generates,
uses
and
can
radiate
radio
frequency
energy
and,
if
not
installed
and
used
in
accardance
with
the
instructions,
may
cause
harmful
interference
to
radio
communications.
However,
there
is
no
guarantee
that
inter-
ference
will
not
occur
in
a
particular
installation.
If
this
equipment
does
cause
harmful
interference
to radio
or
television
reception,
which
can
be
determined
by
turning
the
equipment
off
and
on,
the
user
is
encouraged
to
try
to
correct
the
interference
by
one
or
more
of
the
following
measures:
«Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
*Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
*Consult the dealer or an experienced radio/TV technician for help.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
Proper connectors must be used for connection to host computer and/or peripherals
in order to meet FCC emission limits.
Connectdr SB-62 Power Graphic Unit to Power Graphic Unit
Connector FA-121 Ver 2.0 Power Graphic Unit to PC for IBM/Macintosh Machine
IBM is a registered trademark of Internationa! Business Machines Corporation.
Macintosh is a registered trademark of Apple Computer, inc.
| About the color display )
The display uses three colors: orange, blue, and green, to make
data easier to understand.
® Main Menu
R22 MAH MEHL eee
cOMF 1 TREG. |
@ Set-Up Display
+h
BCON TRAST sea
[iar [irs
@ Graph Display (Example 2)
®@ Graph Function Menu
APH FUNC:
EOL
amiga
4340087-13,

®@ Dynamic Graph Display ®@ Table & Graph Display
ra 2
a ROLLERS Ma OSI
@ When you draw a graph or run a program, any comment text
normally appears on the display in blue. You can, however,
change the color of comment text to orange or green
(page 27).
To draw a sine curve.
(REC)
{Specify the mode.)
CD (on)
Qranse Grarh Yes
Ga) a
{Specify the color of the graph
and input the function.) RE
&
X Press (Orn) draws the graph in orange, while (F2)
(Grn) draws in green.
(Be)
(Draw the graph.)
You can also draw multiple graphs of different color on the same
screen, making each one distinct and easy to view.
Welcome to the world of color. graphing calculators-and the
CASIO CFX-9800G. me
Quick-Start is not a complete tutorial, but it takes you through
many of the most common functions, from turning the power on, to
specifying colors, and on to graphing complex equations..When: :
you're done, you'll have mastered the basic operation of the
CFX-9800G and will be ready to proceed with the rest of this
manual! to learn the entire spectrum of functions available with the
CFX-9800G. :
Each.step of the examples in Quick-Start is shown graphically to
help you follow along quickly and easily. When you need to enter the
number 57, for.example, we've indicated it as follows:
Press (sj)(7
Whenever necessary, we've included samples of what your
screen should look like. If you find that your screen doesn't match
the sample, you can restart from the beginning by pressing, the “All :
Clear” button aAc™
SWITCHING POWER ON AND OFF
To switch power on, press Wi\egg .
. . OFF
To switch'poWwer off, press ‘
Note that the unit automatically switches power off if you do not perform
any operation for about six-minutes.
ADJUSTING THE COLOR CONTRAST
Use one of the procedures described here to adjust the color
contrast if you feel the figures on the display are dim or difficult to
see. You can use either of-the two following procedures to a alee
color contrast.
- Contrast adjustment
- Tint adjustment
3340087-13 . Quick-Start |

To display the adjustment screen
1. Press -(weny}.
2.Use > @® @D @® to highlight OPTION.
3. Press, (EXE).
4, Press (EXE) again.
antttte COLOR BAA
40 B GF
ORANGE
BLE
GREEN ——
[ier fia
5. Now Nar: the operation under “To adjust the contrast” or "To.
adjust the color tint”.
Quick-Start
Tig iy
To adjust the contrast
1. Use ® and» GD to'move the pointer to CONTRAST. °° -
2. Use: @ to make the figures on the. display:darker or - @ to.
make them lighter. :
3. Press {wen} to return to the Main Menu.
To adjust the color.tint -
1. Use @ and ‘@ to. move the pointer to the color you want to
adjust (ORANGE, BLUE, GREEN).
2. Use: @ to move the setting toward the G (green) side or (<>)
to move it to the O (Orange) side.
3. Press fen) to return to the Main Menu.
When adjusting the color contrast, first adjust overall display
contrast, and then adjust the tint of each individual color,
Quick-Start III

USING MODES
The CFX-9800G makes. it.easy to perform a wide range of
calculations by simply selecting the appropriate mode. Before
getting into actual calculations‘and operation examples, let's take a
look at how to navigate around the modes.
To select the COMP Mode
1. Press. fwenu} to display the Main Menu.
I
IMAT IGRAPHDYNA! TABLE
bi |
2. Use @ ®© @ ®D jo highlight COMP :
and then press (EXE):
RUN - COMP
G-tyre i REC/CON
Ansle iDes
Disrelayi hrm
M-D/Cry! M-Dise
This is the initial screen of the COMP (computation) mode, where
you can perform manual calculations, run programs, and draw
graphs.
Quick-Start IV
To enter the GRAPH Mode é
1. Press -to display the Main Menu.
2.Use @ ® @ @ tohighightGRAPH , |
and then press (EXE) ;
3, Press (EXE) again.
EDI UUEL TY ED AELAMON
This is the menu of graph functions. When you store a graph
function, it appears in this menu from which you can select it and
draw a graph. : . . st -
Quick-Start -V

BASIC CALCULATIONS .
With manual calculations, you input formulas from left to right, just
as they are written on a paper. With formulas that include mixed
arithmetic operators and parentheses, the calculator automatically
applies true algebraic logic to calculate the result.
Example: 15x3+61
1.Press [itstal to clear the calculator.
res A) (5) S)
(6)GJ@8).
Parentheses Calculations
Example: 15 x (3 + 61)
15x¢3+615
Quick-Start VI
iN ee,
Built-In Functions
The.CFX-9800G
includes
a
number.
of
built-in:
scientific
ic:
‘functions,
including
trigonometric
and
logarithmic
functions:
-
Example: 25 x sin 45°
Important!
Be
sure
that
you
specify
Deg
(degrees)
as
the
unit.of
angular
measurement
before
you
try
this
example.
--
:
1. Press a
2. Press
8.
Press
(Deg)
(EXE)
to
specify
degrees
as
the-angular
unit.
DRG PoP pte
to display the menu of angular units.
4. Press to clear the menu.
5. Press iXeml to clear the unit.
6. Press (2) (5 ) (sin )
(4) (5) @e).
Quick-Start. Vit

a
TT
REPLAY
FEATURE
aaa
FRACTION
CALCULATIONS
:~
.
With
the
réplay
feature;
simply
press
@®
or
@>
to
recaill
the
last
You
can
use
the
key-to
input
fractions
into
calculations.
calculation
that
was
performed.
This
recalls
the
calculation
so
you
The
symbol
“~”
is
used
to
separate
the
various
parts
of
a
fraction.,
can make changes or re-execute it as it is.
a Example: 1 15/16 + 37/9
Example: To change the calculation in the last example
(25 x sin 45°) to (25 x sin 55°). 1. Press . :
1. Press @ to display the last calculation: . a : 2. Press (4) (s)
2.Use
©
twice
to
move
the
cursor
under
the
4.
(6) (3)
3, Press CS). : ; : (3) (Be) .
4. Press to execute the calculation again. ~
Indicates 6 7/144:
Converting a Mixed Fraction to an Improper Fraction
; afe
While a mixed fraction is shown on the display, press
to convert it to an improper fraction.
dle " Ft ‘
Press again to convert back to a mixed fraction.
Quick-Start
Vill
Quick-Start
IX

Converting
a
Fraction
to
Its
Decimal
Equivalent
EXPONENTS
While
a
fraction
is
shown
on
the
display,
press
to
convert
Example:
1250
X'2,065
|
it to its decimal equivalent.
Press
again
to
convert
back
to
a
fraction.”
4.
Press.
;
SAT 2.press(4_) (2) (5) (0)
3. Press and the. indicator appears on the digplay.
4. Press (5 } : The 45 on-the display indicates that 5 is an
exponent. :
BxX2, Bo"5
46376. 96297,
5. Press (EXE) ;
Quick-Start
X
Quick-Start:
X1

GRAPH FUNCTIONS
The graphing capabilities of the CFX-9800G make it possible to
graph complex functions using either rectangular coordinates =.
(horizontal axis: x; vertical axis: y) or polar coordinates (horizontal
axis: 6; vertical axis: r).
Specifying the Graph Type
Before drawing a graph, you.rmust first specify the graph type
(rectangular or polar) to suit the variables you will use. The following
procedure shows how to specify rectangular coordinate graphing.
1, Enter the COMP Mode from the Main Menu. :>-*
2. Press fae) to make the COMP Mode set up screen
appear,
ingle iDes-
Display! Nem”
M-D/Cey! M-Dise
8. Press (REC) to specify rectangular coordinates for the
graph type.
4, Press to return to the previous display.
Built-in Function Graphing
The built-in scientific functions (sin, log, x2, etc.) make it easy to
produce graphs.
Example: To graph y = sin x.
1. Press (Grept}.
Quick-Start: Xll
Built-in Function Graphing cont'd :
2, Press 7You:do.not have to input a value for variable x.
3. Press to draw the graph.
Trace Function
With the trace function, you can move a pointer around the graph
and produce readouts of the coordinates at the current pointer
location. Pr edige™ aa
1. While a graph is on the display, press (Trace). This makes
the pointer appear at the far left point of the graph. The x-
coordinate and y-coordinate ‘for the current pointer location
appears at the bottom of the display.
2.Use @ and -@ to move the pointer on the graph.
3. Press (Coord) to display:a more precise value for the x-
coordinate. : :
4. Press (Fe } (Coord) ‘again to view a more precise value for the y-
coordinate.
5. Press (£1) (Trace) to exit the trace function.
Quick-Start Xttt

Scroll Function
Immediately after drawing a graph, you can use) ,@, @
and C¥ to scroll the graph image on the display. Pressing one of
‘these keys causes the graph to be redrawn.12 dots up, down, left,
or right of its original location.
Zoom Function
This function lets you.enlarge or reduce the size of a graph. You
can even specify the factor to use for enlargement or reduction.
Example: To enlarge and reduce the graph for y = sin x.
1. After ‘drawing the graph, press (F2) (Zoom) to display a function
key menu on the bottom of the display.
i ¢[AUT A
2. To enlarge the graph, press (Fa ) (Xf).
3. To return the graph to its original size, press (Fe)( 7) (1)
(ORG).
aR
;
Quick-Start- XIV
Zoom Function cont'd
4. To reduce the graph, press, (F2) (Zoom) and then:(F4) (x1/).
8. To return the graph to its original size, press (Fe )( 0) (F1)
(ORG).
Box Zoom Function
With the box zoom function, you can salecd a epeuitic wait of.a”
graph and zoom in until that part fills the entire display.
Example: To use box zoom to enlarge the graph for y = sin x.
1, After drawing the graph, press (Zoom).
2. Press (BOX) and a pointer appears in. the center of the
display.
Quick-Start XV