Casio CFX9850GC PLUS_Eng Getting Acquainted Read This First! Fx Plus Ch Gett EN
User Manual: Casio Getting Acquainted - Read This First! fx-9750G PLUS | Calculators | Manuals | CASIO
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Getting Acquainted
About this User’s Guide
uFunction Keys and Menus
• Many of the operations performed by this calculator can be executed by pressing function
keys 1 through 6. The operation assigned to each function key changes according to
the mode the calculator is in, and current operation assignments are indicated by function
menus that appear at the bottom of the display.
• This user’s guide indicates the current operation assigned to a function key in parentheses
following the key cap marking for that key. 1 (Comp), for example, indicates that
pressing 1 selects {Comp}, which is also indicated in the function menu.
• When {g} is indicated in the function menu for key 6, it means that pressing 6
displays the next page or previous page of menu options.
uMenu Titles
• Menu titles in this user’s guide include the key operation required to display the menu
being explained. The key operation for a menu that is displayed by pressing K and then
{MAT} would be shown as: [OPTN]-[MAT].
• 6 (g) key operations to change to another menu page are not shown in menu title key
operations.
uCommand List
• The Program Mode Command List (page 453) provides a graphic flowchart of the various
function key menus that shows how to maneuver to the menu of commands you need.
Example: The following operation displays Xfct: [VARS]-[FACT]-[Xfct]
uIcons Used in This User’s Guide
• The following are the meanings of the icons used in this user’s guide.
: Function not supported by fx-9750G PLUS
CFX
: Important
: Note
P.000
: Reference page
Getting Acquainted — Read This First!
— Read This First!
1. Key Markings
Many of the calculator’s keys are used to perform more than one function. The
functions marked on the keyboard are color coded to help you find the one you
need quickly and easily.
Function
Key Operation
1
log
l
2
10x
!l
3
B
al
The following describes the color coding used for key markings.
2
Color
Key Operation
Orange
Press ! and then the key to perform the marked
function.
Red
Press a and then the key to perform the marked
function.
2. Selecting Icons and Entering Modes
This section describes how to select an icon in the Main Menu to enter the mode you want.
uTo select an icon
1. Press m to display the Main Menu.
Currently selected icon
* The above shows the CFX-9850
GB PLUS screen.
2. Use the cursor keys (d, e, f, c) to move the highlighting to the icon
you want.
3. Press w to display the initial screen of the mode whose icon you selected.
• You can also enter a mode without highlighting an icon in the Main Menu by
inputting the number or letter marked in the lower right corner of the icon.
• Use only the procedures described above to enter a mode. If you use any other
procedure, you may end up in a mode that is different than the one you thought
you selected.
The following explains the meaning of each icon.
Icon
Mode Name
Description
RUN
Use this mode for arithmetic calculations
and function calculations, and for
calculations involving binary, octal, decimal
and hexadecimal values.
STATistics
Use this mode to perform single-variable
(standard deviation) and paired-variable
(regression) statistical calculations, to
perform tests, to analyze data and to draw
statistical graphs.
MATrix
Use this mode for storing and editing
matrices.
LIST
Use this mode for storing and editing
numeric data.
GRAPH
Use this mode to store graph functions and
to draw graphs using the functions.
DYNAmic graph
Use this mode to store graph functions and
to draw multiple versions of a graph by
changing the values assigned to the
variables in a function.
3
2
Selecting Icons and Entering Modes
Icon
Mode Name
Description
TABLE
Use this mode to store functions, to
generate a numeric table of different
solutions as the values assigned to variables
in a function change, and to draw graphs.
RECURsion
Use this mode to store recursion formulas,
to generate a numeric table of different
solutions as the values assigned to variables
in a function change, and to draw graphs.
CONICS
Use this mode to draw graphs of conic
sections.
EQUAtion
Use this mode to solve linear equations with
two through six unknowns, quadratic
equations, and cubic equations.
PRoGraM
Use this mode to store programs in the
program area and to run programs.
Time Value of
Money
Use this mode to perform financial calculations and to draw cash flow and other types
of graphs.
LINK
Use this mode to transfer memory contents
or back-up data to another unit.
CONTrast
Use this mode to adjust the contrast of the
display.
MEMory
Use this mode to check how much memory
is used and remaining, to delete data from
memory, and to initialize (reset) the
calculator.
CFX
fx-9750G
PLUS
k Using the Set Up Screen
The mode's set up screen shows the current status of mode settings and lets you
make any changes you want. The following procedure shows how to change a set
up.
uTo change a mode set up
1. Select the icon you want and press w to enter a mode and display its initial
screen. Here we will enter the RUN Mode.
2. Press !Z to display the mode’s set up
screen.
• This set up screen is just one possible
example. Actual set up screen contents will
differ according to the mode you are in and
that mode’s current settings.
4
1 2 3 4 56
·
··
Selecting Icons and Entering Modes
2
1 2 3 4 5
3. Use the f and c cursor keys to move the highlighting to the item whose
setting you want to change.
4. Press the function key (1 to 6) that is marked with the setting you want to
make.
5. After you are finished making any changes you want, press J to return to
the initial screen of the mode.
k Set Up Screen Function Key Menus
This section details the settings you can make using the function keys in the set
up display.
uMode (calculation /binary, octal, decimal, hexadecimal mode)
• {Comp} ... {arithmetic calculation mode}
P.75
• {Dec}/{Hex}/{Bin}/{Oct} ... {decimal}/{hexadecimal}/{binary}/{octal}
uFunc Type (graph function type)
P.123
~ P.125
P.126
• {Y=}/{r=}/{Parm}/{X=c} ... {rectangular coordinate}/{polar coordinate}/
{parametric coordinate}/{X = constant} graph
• {Y>}/{Y<}/{Y }/{Y } ... {y>f(x)}/{y |x|, |x| > 1010
Norm 2 ........... 10–9 (0.000000001) > |x|, |x| > 1010
uTo change the exponential display range
1. Press !Z to display the set up screen.
2. Use f and c to move the highlighting to “Display”.
3. Press 3 (Norm).
The exponential display range switches between Norm 1 and Norm 2 each time
you perform the above operation. There is no display indicator to show you which
exponential display range is currently in effect, but you can always check it by
seeing what results the following calculation produces.
Ab/caaw
(Norm 1)
(Norm 2)
All of the examples in this manual show calculation results using Norm 1.
uHow to interpret exponential format
1.2E+12 indicates that the result is equivalent to 1.2 × 1012. This means that you
should move the decimal point in 1.2 twelve places to the right, because the
exponent is positive. This results in the value 1,200,000,000,000.
1.2E–03 indicates that the result is equivalent to 1.2 × 10–3. This means that you
should move the decimal point in 1.2 three places to the left, because the
exponent is negative. This results in the value 0.0012.
9
3
Display
k Special Display Formats
This calculator uses special display formats to indicate fractions, hexadecimal
values, and sexagesimal values.
uFractions
12
..... Indicates: 456 ––––
23
uHexadecimal Values
..... Indicates: ABCDEF12(16), which
equals –1412567278(10)
uSexagesimal Values
..... Indicates: 12° 34’ 56.78"
• In addition to the above, this calculator also uses other indicators or symbols,
which are described in each applicable section of this manual as they come up.
k Calculation Execution Indicator
Whenever the calculator is busy drawing a graph or executing a long, complex
calculation or program, a black box (k) flashes in the upper right corner of the
display. This black box tells you that the calculator is performing an internal
operation.
10
4. Contrast Adjustment
Adjust the contrast whenever objects on the display appear dim or difficult to see.
uTo display the contrast adjustment screen
Highlight the CONT icon in the Main Menu and then press w.
CFX-9850(9950)GB PLUS,
CFX-9850G PLUS
fx-9750G PLUS
uTo adjust the contrast
Press the e cursor key to make the display darker and the d cursor key to
make it lighter. Holding down either key changes the setting at high speed.
uTo adjust the color tint
CFX
It is recommended that you always adjust the CONTRAST setting first.
1. Use the cursor f and c keys to move the pointer so it is next to the color
(ORANGE, BLUE, GREEN) whose tint you want to adjust.
2. Press the e cursor key to give the color a greener tint and the d cursor key
to give it an orange tint. Holding down either key changes the setting at high
speed.
uTo initialize color tint settings
• {INIT}/{IN·A} ... {initialize highlighted color}/{initialize all colors}
uTo exit the contrast adjustment screen
Press m to return to the Main Menu.
• You can change the CONTRAST setting at any time without displaying the
contrast adjustment screen. Simply press ! and then d or e to change
the setting. Press ! once again after the setting is the way you want.
11
5. When you keep having problems…
If you keep having problems when you are trying to perform operations, try the
following before assuming that there is something wrong with the calculator.
k Get the Calculator Back to its Original Mode Settings
1. In the Main Menu, select the RUN icon and press w.
2. Press ! Z to display the set up screen.
3. Highlight “Angle” and press 2 (Rad).
4. Highlight “Display” and press 3 (Norm) to select the exponential display
range (Norm 1 or Norm 2) that you want to use.
P.3
5. Now enter the correct mode and perform your calculation again, monitoring the
results on the display.
k In Case of Hang Up
P.431
• Should the unit hang up and stop responding to input from the keyboard,
press the P button on the back of the calculator to reset the memory. Note,
however, that this clears all the data in calculator memory.
k Low Battery Message
The low battery message appears whenever you press o to turn power on or
m to display the Main Menu while the main battery power is below a certain
level.
o or m
↓ About 3 seconds later
* The above shows the CFX-9850
GB PLUS screen.
P.433
If you continue using the calculator without replacing batteries, power will automatically turn off to protect memory contents. Once this happens, you will not be
able to turn power back on, and there is the danger that memory contents will be
corrupted or lost entirely.
• You will not be able to perform data communications operations once the low
battery message appears.
12
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