Sharp EL-9450, EL-9400 User Manual

Graphing Calculator

EL-9450/9400

OPERATION GUIDE

Introduction

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.

Built-in slide shows Educational tools (OHP/PC-link/Data collection)

Easy to Teach

Easy to Learn	Easy to Use
Shift/Change function	Large display
Equation editor	Rapid graph
Split display	Rapid window
	Rapid zoom

Contents	Sales points	P 1	System options
	Basic operation	P 2	PC-link system	P 14
	Equation editor	P 4	Set to set communication	P 15
	Features		OHP system	P 16
	Shift	P 5	Menu tree 1~6	P 17
	Change	P 6	Specifications	P 23
	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

Sales points

1Large 96 x 64-dot display

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

3 Slide Shows reduce class preparation time

4 Equation Editor shows equations just as in textbooks

5 Rapid graph/Rapid window simplify graphing procedures

6 Rapid zoom allows easy adjustment of window size

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Basic operation

Power ON/OFF

				Power on
				Power off
				Erase equations and
CL
		QUIT		remove error displays
		CL		Cancel of previous
				function (Escape)

Function keys

	Y =							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
		EZ
								Window and Rapid Zoom functions

Names of parts

5 Display screen

1 Graphing keys

2 Power supply ON/OFF key

6 Cursor movement keys

3 Alphabet specification key

7 Clear/Quit key 4 Secondary function

specification key

8 Variable enter key

9 Calculation execute key

10 Communication port for peripheral devices

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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:

SET UP menu

Press SET UP .

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

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

Adjusting screen contrast

•The contrast adjust screen will appear when pressing

.

Press					to lighten contrast.
Press					to darken contrast.

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.

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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.

Example

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

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Key Operation

Display

Notes

CL

(or

6

)

0 1 a/b 2

X/T a/b 1 X/T x2

Clear the display.

Select CALC and

(Integral function)

Enter the range of the integral.

Enter

Complete equation input.

(or

0

7

)

6

]

Calculate the expression.

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

4

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.

Example

When the graph of y = x2 is shifted downward, how does this affect the equation?

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Key Operation Display Notes

		SHIFT/CHANGE	Enter SHIFT/CHANGE mode.
			If		SHIFT is not already

]

highlighted press

.

]

Select shift. Cursor moves to the equation menu.

Select the equation: y = x2 and draw the graph.

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

View the result of the shift.

]	y = x2	]
	y = x2-2

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Change (Change the shape of the graphs)

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.

Example

When the graph of y = x2 is changed, how does it affect the equation?

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Key Operation			Display	Notes
				Enter SHIFT/CHANGE mode
		SHIFT/CHANGE
				and specified (		CHANGE ).

Select change. Cursor will move to the equation menu.

Select the equation: y = x2 and draw the graph.

Select the location of the change: increase the value of y- coordinates.

View the result of the change.

]	y = x2	]
	y = 2x2

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Slide show

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.

Example

Use the built-in slide show of y = x2 to show how the coordinates change as you move along the graph.

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Key Operation

Display

Notes

Specified SLIDE SHOW mode.

Select the built-in menu.

Select y = x2 and the first slide appears.

Begin the slide show by pressing the cursor key.

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

*View the selection of built-in slide shows on the following pages.

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