Sharp EL-9900 Manual de usuario
Graphing Calculator
EL-9900
OPERATION GUIDE
For Advanced Levels For Basic Levels
Introduction
Contents Sales points P 1
Basic operation P 2
Equation editor P 4
Features
Slide show P 6
Graphing procedure P 8
System options
PC-link system P 10
Set to set communication P 11
OHP system P 12
List of Menu/Sub-menu Items P 13
Specifications P 31
Around the world, there's a growing need for graphing calculators that can
be used as educational tools. More and more schools are starting to
introduce calculators in the lower grades. Despite this trend, though,
current graphing calculators are often designed with too many functions
allotted to a limited number of keys. They take too long to get used to
operating, and are too complex to be used for their main purpose — as
learning support tools.
That's why SHARP developed the EL-9900, with the world's first reversible
keyboard. This unique keyboard has functions used in lower grades on one
side and those for higher grades on the other, along with different function
select menus for both basic and advanced keyboards. The 2-in-1 EL-9900
helps students learn not only basic operations — such as fractions, pie
charts and easy statistics — but also high-level functions and complex
statistics. It's a simple case of just reversing the keyboard. And, as well as
being easy to use, it's economical; there's no need for a student to buy a
new calculator when he begins studying more advanced functions.
The EL-9900 features the latest useful functions from our current models.
The Equation Editor, for example, displays equations as they would appear
in a textbook, while the Slide Show function displays inputted equations,
tables, or graphs in a slide-show style.
Our intention with this Operation Guide is to introduce the main features
of the EL-9900, using operation examples, so that teachers can use this
calculator more easily.
Note)
• The Reversible Keyboard is an original SHARP technology, patent
pending.
• For more information on the EL-9900, please visit this web page:
http://sharp-world.com/products/calculator/product/graphing/9900.html
Changing thekeyboard
1
1. Press to turn off the calculator’s power.
2. Open the battery compartment cover.
Hold the calculator as illustrated.
3. Slide the keyboard eject tab
(KEYBOARD EJECT) down.
The keyboard will be ejected.
Be careful not to drop the keyboard
on the floor, as this may damage it.
4. Turn the keyboard over, and place it
back in the calculator as illustrated.
Secure by gently pressing the
keyboard until you hear the notch click.
Clean the edges and contact points of the keyboard and the keyboard tap
before reattaching the keyboard to the main unit. DO NOT touch the
pad portion in the keyboard tap.
5. Replace the battery compartment cover.
6. Press .
7. Make sure that the message shown
on the right appears.
8. Press .
To change the
keyboard:
Using the reversible keyboard of this calculator changes not only its appearance, but also
its internal functions and configurations.
Note:
2
Names of parts & main keys
Equation entry mode
Draw graph
View table of function values
Graph size setting mode
Adjust viewing mode
Trace graph mode
Calculation execute key
Basic operation
Calculation mode key
Power supply ON/OFF key
Secondary function specification key
Alphabet specification key
MATH key
STAT key
PRGM key
Display screen
Cursor movement keys
Clear/Quit key
Calculation execute key
ALL RESET switch
(in the battery cover on the back)
Communication port for
peripheral devices
Reversible Keyboard
Graphing keys
Power on
Power off
Erase equation and answer
Cancel previous function
Enter calculation mode
Display function menu
Enter statistics mode
Enter programming mode
3
Reset function
1) When trouble occurs
Press to enter the reset mode.
•
Use this function ( or ) to return all
settings to the default value or to delete all data.
2) All RESET operation
•
If trouble still occurs, proceed as follows:
1. Press to turn the calculator off.
2. Open the battery cover.
3. Press the RESET switch in the battery
compartment.
4. Place the battery cover back on.
5. Press .
•
Returns to the initial display.
CAUTION
If you press in step 5, it will delete all data stored
in the calculator.
SET UP menu
Adjusting screen contrast
•
The contrast adjust screen will appear when pressing
.
Press to darken contrast.
Press to lighten contrast.
Guide to key use
There may be differences in the results of calculations
and in displayed content, as this calculator has
detailed set up menus involving options such as angle
units and display formats.
The set up menu screen will appear upon pressing
.
Confirm the current
settings or change
the settings using
the cursor keys.
Press to use secondary functions (in
yellow).
Press to use the alphabet keys (in violet).
Example:
To select “x
2”:
To select “x
-1”: ➞
To select F: ➞
Displayed as follows:
Displayed as follows:
Basic operation
4
Example
NotesKey Operation Display
Input the equation and see how it can be easily viewed
with the equation editor.
The equation editor allows equations to be viewed just as they are written in textbooks.
This aids student comprehension and allows mistakes to be found quickly.
Clear the display.
Enter
2
6
Enter the range of the integral.
Complete equation input.
<Basic calculation mode><Advanced calculation mode>
(Integral function)
Select CALC and
1
3
4
5
Equation editor
Calculate the expression.
The mark in the upper right corner
will blink for approximately 10 seconds,
indicating that the expression is
being calculated.
]
]
5
NotesKey Operation Display
2
Enter the equation.
Calculate the expression.
4
See page 1 and switch the
calculator to Basic calculation
mode.
Clear the display.
1
3
6
Slide show
Example
Use the slide show function to create an original slide show.
Before carrying out the following operation, press the reset switch in the battery compartment and press the
keys (caution: previously entered equations and memory will be erased).
Utilizing the calculator's graphing capabilities, the slide show function helps students
understand a range of mathematical concepts. With this function, the calculator's screen
images can be captured, organized and stored.
NotesKey Operation Display
Enter the slide show creation mode
and input a title.
Create the first screen and press
to register it.
The message “STORESCREEN 01”
will appear momentarily to show
that registration is completed.
Enter the graph equations “0.5X
2
-5”
and “-X+2” at Y1 and Y2 respectively.
Registers as the second screen.
Displays the graph.
Registers as the third screen.
Shows the table.
Registers as the fourth screen.
1
2
3
4
5
6
7
8
9
7
Sets the slide show to the playback
mode.
The graph and table are shown simulta-
neously.
Registers as the fifth screen.
Press to recall the first screen.
The symbol is displayed in the top
right corner of the screen.
Press the key to recall the second
screen.
The symbol is displayed on the
screen.
10
11
12
13
14
15
•••
NotesKey Operation Display
Press the key repeatedly to view
the screens in the order that they were
created. The last screen is shown at left.
This is the end of the playback.
8
Graphing procedures
NotesKey Operation Display
Enter the equation.
With the EL-9900, graphs can be drawn in one of 4 modes: by rectangular coordinates, by
polar coordinates, by parameters, or by sequences.
(Note: Graphs in polar coordinate, parameter, and sequence modes cannot be drawn
using the Basic keyboard.)
Rectangular coordinates Polar coordinates Parameters Sequences
Graphing Steps
Example: Draw a rectangular graph.
Draw the graph.
Adjust the viewing window.
1
2
3
(Amend the range size.)
4
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7
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