Sharp EL-9900 Manuel utilisateur

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. 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:

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

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:

Basic operation

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

Enter the range of the integral.

Complete equation input.

(Integral function)

Select CALC and

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.

]

NotesKey Operation Display

Enter the equation.

Calculate the expression.

See page 1 and switch the

calculator to Basic calculation

mode.

Clear the display.

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

-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.

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.

•••

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.

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.

(Amend the range size.)

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