Sharp EL-9000 User Manual

Graphing Calculator

EL-9450/9400

OPERATION GUIDE

Built-in slide shows

Educational tools

(OHP/PC-link/Data collection)

Shift/Change function

Equation editor

Split display

Large display

Rapid graph

Rapid window

Rapid zoom

Easy to Teach

Easy to Learn

Easy to Use

Introduction

C

ontents

Sales points P 1
Basic operation P 2
Equation editor P 4
Features

Shift P 5
Change P 6
Slide show P 7
Slide show selections P 8
Graphing procedure P 10
Rapid graph P 11
Rapid window P 12
Rapid zoom P 13

System options

PC-link system P 14
Set to set communication P 15
OHP system P 16

Menu tree 1~6 P 17
Specifications P 23

The EL-9450/9400 was developed to meet the needs of an
expanding education market and is based on three concepts:
easy to teach, easy to learn and easy to use. The EL-9450/9400
has been designed with simplified operations and time-saving
features, allowing teachers to concentrate on actual teaching.

This manual was designed to introduce teachers to the unique
features of the EL-9450/9400 using detailed operation examples.

1

Sales points

Graph Shift/Change shows
how "changing" the graph
affects the equation

Large 96 x 64-dot
display

Slide Shows reduce class

preparation time

Rapid zoom allows easy
adjustment of window size

Rapid graph/Rapid window

simplify graphing procedures

1

3

Equation Editor shows
equations just as in textbooks

2

4

5

6

2

Basic operation

Use to enter equations
Use to draw graphs
Use to view table of function value
Use to set size of viewing window
Use to adjust the viewing range
Use to trace graphs
Use to enter calculation mode
Use to enter slide show mode
Use to operate Rapid Graph/Rapid

Window and Rapid Zoom functions

Function keys

Y =

EZ

Names of parts

Communication port for peripheral devices

Power off

Power on

CL

Erase equations and
remove error displays

Power ON/OFF

○○○○○○○

○○○

○○○○○○

QUIT

CL

Cancel of previous
function (Escape)

○○○

Graphing keys

Power supply ON/OFF key

Alphabet specification key

Secondary function
specification key

1

2

3

4

5

6

7

8

9

Display screen

Cursor movement keys

Clear/Quit key

Variable enter key

Calculation execute key

10

3

Reset function

1) When trouble occurs

Press to enter the reset mode.

• Use this function (1 or 2 ) 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 the RESET switch on the back.

2. Press .

• Returns to the initial display.

CAUTION

Do not press CL in step 2. It will delete all data
stored in the calculator.

SET UP menu

Press

SET UP

.

• Contents displayed on the right side of
the screen are the current settings.

Adjusting screen contrast

• The contrast adjust screen will appear
when pressing

.

Press to lighten contrast.
Press to darken contrast.

Basic operation

Guide to key use

Press to use secondary functions (in yellow).
Press to use the alphabet keys (in blue).

Example:
To select “sin”:

To select “sin-1”:
To select A:

There may be differences in the results
of calculations and graph plotting
depending on the SET UP settings.

]

]

NotesKey Operation

Display

Example

4

Equation editor

1

2

5

4

3

6

Input the equation and see how it can be easily
viewed with the equation editor.

CL

0

1

a/b

2

a/b

1

x

2

Clear the display.

Select CALC and

Enter the range of the integral.

Complete equation input.

Calculate the expression.

The blinking mark in the upper right
side of the display indicates the
expression is being calculated.

Enter

(or 6 )

(or

0 7 )

]

]

X/T

X/T

(Integral function)

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.

NotesKey Operation Display

Example

5

SHIFT/CHANGE

]

]

]

]

Shift

(Change the location of graphs)

Graph shift function helps students grasp the relationship between an equation and its graph.
Shift the graph’s location without changing its shape, and the change is immediately reflected
in the equation on the right side of the display.

When the graph of y = x2 is shifted downward,

how does this affect the equation?

View the result of the shift.

Select the location of the shift:
move cursor down twice.

Select the equation: y = x

2

and

draw the graph.

Select shift. Cursor moves to the
equation menu.

y = x

2

y = x2-2

Enter

SHIFT/CHANGE

mode.

If

SHIFT

is not already

highlighted press .

1

2

4

3

5

NotesKey Operation

Display

Example

6

When the graph of y = x2 is changed,

how does it affect the equation?

Change

Graph change function helps students grasp the relationship between an equation and its
graph. Change the shape of the graph, and the change is immediately reflected in the equation
on the right side of the display.

Enter

SHIFT/CHANGE

mode

and specified (

CHANGE

).

1

3

4

5

2

Select change. Cursor will move
to the equation menu.

Select the equation: y = x

2

and

draw the graph.

View the result of the change.

Select the location of the
change: increase the value of y­coordinates.

SHIFT/CHANGE

(Change the shape of the graphs)

Features

y = x

2

y = 2x

2

]

]

NotesKey Operation Display

Example

7

Slide sho w

Slide show assists with teacher preparation. By selecting from the built-in options or cre­ating your own series of slides, you can demonstrate lessons with minimum preparation
time.

Use the built-in slide show of y = x2 to show how the

coordinates change as you move along the graph.

Select y = x2 and the first slide
appears.

Moving between the values you
can follow the changes in the
graph’s coordinates, making the
nature of the graph easier to
understand.

Specified

SLIDE SHOW

mode.

1

2

4

3

Begin the slide show by press­ing the cursor key.

Select the built-in menu.

Features

* View the selection of built-in slide shows

on the following pages.