Sharp EL-9400 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

Contents 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.

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

Equation Editor shows

equations just as in textbooks

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

Names of parts

Communication port for peripheral devices

Power off

Power on

Erase equations and

remove error displays

Power ON/OFF

○○○○○○○

○○○

○○○○○○

QUIT

Cancel of previous

function (Escape)

○○○

Graphing keys

Power supply ON/OFF key

Alphabet specification key

Secondary function

specification key

Display screen

Cursor movement keys

Clear/Quit key

Variable enter key

Calculation execute key

Reset function

1) When trouble occurs

Press to enter the reset mode.

• Use this function (

) 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

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

Equation editor

Input the equation and see how it can be easily

viewed with the equation editor.

a/b

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

)

(or

)

]

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

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 = x2is 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

and

draw the graph.

Select shift. Cursor moves to the

equation menu.

y = x2

y = x2-2

Enter

SHIFT/CHANGE

mode.

SHIFT

is not already

highlighted press .

NotesKey Operation Display

Example

When the graph of y = x2is 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

Select change. Cursor will move

to the equation menu.

Select the equation: y = x

and

draw the graph.

View the result of the change.

Select the location of the

change: increase the value of y-

coordinates.

SHIFT/CHANGE

(Change the shape of the graphs)

Features

y = x2

y = 2x2

]

NotesKey Operation Display

Example

Slide show

Slide show assists with teacher preparation. By selecting from the built-in options or cre-

ating your own series of slides, you can demonstrate lessons with minimum preparation

time.

Use the built-in slide show of y = x2to show how the

coordinates change as you move along the graph.

Select y = x

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.

Begin the slide show by press-

ing the cursor key.

Select the built-in menu.

Features

* View the selection of built-in slide shows

on the following pages.

Built-in slide show selections

1) Y=X22) Y=AX+B 4) Y=1

Features

3) Y= X

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