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
Large display
Rapid graph
Rapid window
Rapid zoom
Shift/Change function
Equation editor
Split display
Sales points
Basic operation
Equation editor
Features
P 1
P 2
P 4
System options
Contents
PC-link system
Set to set communication
OHP system
P 14
P 15
P 16
P 17
P 23
Shift
Change
P 5
P 6
Menu tree 1~6
Specifications
Slide show
P 7
P 8
P 10
P 11
P 12
P 13
Slide show selections
Graphing procedure
Rapid graph
Rapid window
Rapid zoom
Sales points
1
Large 96 x 64-dot
display
2
Graph Shift/Change shows
how "changing" the graph
affects the equation
3
4
Slide Shows reduce class
preparation time
Equation Editor shows
equations just as in textbooks
5
6
Rapid graph/Rapid window
simplify graphing procedures
Rapid zoom allows easy
adjustment of window size
1
Basic operation
Po w e r O N / O FF
Fu n ctio n k e y s
Power on
Use to enter equations
Y=
Use to draw graphs
Power off
Use to view table of function value
Use to set size of viewing window
Use to adjust the viewing range
Use to trace graphs
Erase equations and
remove error displays
CL
QUIT
Use to enter calculation mode
Use to enter slide show mode
Cancel of previous
function (Escape)
CL
Use to operate Rapid Graph/Rapid
Window and Rapid Zoom functions
EZ
N a m e s o f p a r ts
5
Display screen
1
2
3
4
Graphing keys
Power supply ON/OFF key
Alphabet specification key
Cursor movement keys
Clear/Quit key
6
7
Secondary function
specification key
8 Variable enter key
9
Calculation execute key
10 Communication port for peripheral devices
2
Basic operation
SET UP m e n u
Gu id e to k e y u se
Press
Press
to use secondary functions (in yellow).
to use the alphabet keys (in blue).
Press
.
SET UP
• Contents displayed on the right side of
the screen are the current settings.
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.
]
Re se t fu n ctio n
Ad justing scre e n contra st
1) When trouble occurs
Press to enter the reset mode.
• The contrast adjust screen will appear
when pressing
.
1
2
• Use this function ( or
) to return all
settings to the default value or to delete all
data.
Press
Press
to lighten contrast.
to darken contrast.
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
stored in the calculator.
in step 2. It will delete all data
CL
3
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.
Ex a m p le
Input the equation and see how it can be easily
viewed with the equation editor.
Disp la y
Ke y O p e ra tio n
N o te s
Clear the display.
1
2
3
4
5
6
CL
Select CALC and
(Integral function)
(or
)
6
Enter the range of the integral.
0
1
a/b
2
X/T a/b
X/T
1
Enter
2
x
Complete equation input.
(or
)
0
7
Calculate the expression.
]
The blinking mark in the upper right
side of the display indicates the
expression is being calculated.
]
4
(Change the location of graphs)
Shift
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.
Ex a m p le
When the graph of y = x2 is shifted downward,
how does this affect the equation?
Ke y O p e ra tio n
Disp la y
N o te s
Enter SHIFT/CHANGE mode.
SHIFT/CHANGE
1
2
3
4
5
]
If
is not already
SHIFT
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.
2
]
y = x
]
y = x2-2
5
Features
(Change the shape of the graphs)
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.
Ex a m p le
When the graph of y = x2 is changed,
how does it affect the equation?
Disp la y
Ke y O p e ra tio n
SHIFT/CHANGE
N o te s
Enter SHIFT/CHANGE mode
1
2
3
4
5
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.
2
]
y = x
y = 2x2
]
6
Features
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.
Ex a m p le
Use the built-in slide show of y = x2 to show how the
coordinates change as you move along the graph.
Ke y O p e ra tio n
Disp la y
N o te s
Specified SLIDE SHOW mode.
1
2
3
Select the built-in menu.
Select y = x2 and the first slide
appears.
Begin the slide show by press-
4
ing 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.
7
Features
Built-in slide show selections
1) Y=X2
2) Y=AX+B
3) Y= X
4) Y=1/X
8
Features
Built-in slide show selections
5) Y=sinX
6) Y=tanX
7) Y=cos-1X
8) Y=lnX
9
Features
Graphing Procedures
The EL-9450/9400 has three unique functions that simplify graphing procedures: Rapid Graph,
Rapid Window and Rapid Zoom. Of course, the EL-9450/9400 supports conventional graphing
procedures as well.
Gra p h in g Pro ce d u re
Following outlines graphing procedures and indicates the steps where Sharp's unique functions can
be used to simplify operations. These functions are introduced on the following pages.
Manual Input
Rapid Graph
Ste p 1
Y=
EZ
ab
3
X/T
X/T
Input equation
2
x
2
X/T
Simply select from
built-in menu to
modify desired type of equation .
Manual Input
Rapid Window
Ste p 2
EZ
Set X, Y range
(–)
Xmin =
Xmax =
Xscl =
3
3
(–)
1
5
1
Simply select from
built-in menu to set
window size.
Ymin =
Ymax =
Yscl =
5
1
5
Ste p 3
Draw graph
Press Graph button to draw graph.
Manual Input
Rapid Zoom
Ste p 4
EZ
Adjust viewing
window
Amending
range size
Go back to Step 2 to
readjust window size.
Use arrows to adjust window
size while viewing graph.
10
Features
Rapid graph
Graphing has never been easier. With its full range of preset equations, rapid graph simplifies
equation input. Use in conjunction with the rapid window function or with any graph
created.
Ex a m p le
Draw the graph for y = 2sin (-2x+ ) + 2
using the rapid graph function.
Ke y O p e ra tio n
Disp la y
N o te s
Enter the equation entry mode.
Y=
1
2
3
4
5
Enter Rapid Graph mode and view
the equation-type menu.
EZ
Select the type of equation: Trigo-
nometric, and view the equation
format menu.
Select the sin equation format and
view the sin equation style.
Select the second equation style and
input. If necessary, make changes to
the coefficients.
Draw the graph.
6
(Note: Previous range values may affect
the viewing window. To reset range
values, use Rapid Window.)
11
Features
Rapid window
Rapid window simplifies setting window size with a range of preset values. Use in con-
junction with the rapid graph function or with any graph created.
Ex a m p le
After using Rapid Graph to draw the graph of y = 2sin (-2x+ ) + 2 (refer
p. 1 1 ), set the viewing window using the rapid window function.
Disp la y
Ke y O p e ra tio n
N o te s
Enter viewing window setup mode.
1
2
Enter Rapid Window mode.
EZ
Select the No. 3 style and view the
X-range menu.
3
4
5
Select X-range No. 4:
(-1 < X < 10 scl=1), and
view the Y-range menu.
(Five times)
(or
)
5
Move the cursor to No. 5:
(-0.5 < Y < 5 scl=0.5)
(Six times)
(or
)
5
Select the Y-range and draw the
graph.
7
12
Features
Rapid zoom
Rapid zoom offers one-touch adjustment of window size while viewing the graph. No more
guessing or wasting class time to find optimal values for window size.
Ex a m p le
Adjust the viewing window for y = x3 + x2 - 2x
to show the entire graph.
Ke y O p e ra tio n
Disp la y
N o te s
Create the graph y = x3 + x2 - 2x
using the following conditions:
X-range: xmin = -3
xmax = 3
xscl = 1
Y-range: ymin = -1.5
ymax = 1.5
ab
Y= X/T
3
1
2
x
2
X/T
X/T
(–)
3
5
3
1
(–)
1
5
1
yscl = 0.5
5
EZ
Enter Rapid Zoom mode.
2
3
4
5
Change X-range from Ymax = 1.5 to
Ymax=2. Draw the graph.
Repeat: Change Y-range from Ymax
= 2 to Ymax=2.5. Draw the graph
View display (adjusted).
13
System options
PC-LINK
Connect the EL-9450/9400 with a PC or Macintosh computer to expand the possibilities of
data exchange using PC-Link software.
CE-LK1 P (PC-lin k syste m )
PC-Link
Software
PC conversion
connector for
IBM-PC
IBM PCR
or Compatibles
PC-Link
Software
CE-450L
PC conversion
connector for
Macintosh
MacintoshR
Wha t is PC LINK?
• Loads image data of EL-9450/9400.
• Converts programs and various data files into a Text File. Converts
program text files into a Program File.
• Creates and edits EL-9450/9400 programs on a PC.
• Receives and saves programs and various data from EL-9450/9400.
• Makes a backup of all the contents of EL-9450/9400.
• Sends programs and various data to EL-9450/9400.
• Prints out programs and various data files.
Pro ce d u re
Turn off the EL-9450/9400.
1
2
3
4
5
Connect the EL-9450/9400 to the PC by using the
CE-450L, PC-Link adaptor and PC connector
(see above diagram).
Make sure that the RS-232C (serial port) is connected
to the PC. Use of the connector is determined by the
shape of the PC serial port (see below chart).
Open PC-Link Software.
Shape of PC serial port
25 pin (male)
Connecting procedure
Connect the other side (25-pin side) of PC LINK
adaptor to the serial
port for the PC.
Switch on EL-9450/9400.
Connect the other side (25-pin side) of PC LINK
adaptor to the 25-pin
It is essential to use the same port for both the PC
and the PC-Link Software.
9 pin (male)
terminal of a converting adaptor. Also connect the
other side (9-pin side) of the converting adaptor to
the serial port for the PC.
*
8 pin (female)
For Macintosh
Operate according to the instructions on the
screen.
6
14
Set to set communication
Transfer data between two EL-9450/9400 calculators using the communication cable
(CE-450L).
CE-450L
Communication cable
EL-9450/9400
EL-9450/9400
Co m m u n ica tio n Pro ce d u re
Plug the cable into both calculators.
7
1
Turn power on.
Select SEND/ALL.
2
]
List of sendable data will
appear on screen.
]
]
Re ce ive r
3
8
9
( or
)
Specified LINK.
Select ‘LI’, ‘YI’
]
mark desired data to be
*
sent.
4
5
6
( or
)
2
Execute Sending function.
Select LINK/RECEIVE.
Se n d e r
List of the SEND menu
A SELECT ....................... Sends files individually as described below.
1 ALL .............................. Selects and displays all files.
2 List ............................... Selects and displays all list files.
3 GraphEq ....................... Selects and displays all graph equations.
4 Program ....................... Selects and displays all program files.
5 G_Data......................... Selects and displays all graph data files.
6 L_Data ......................... Selects and displays all list data files.
7 Picture ......................... Selects and displays all picture data files.
8 A~Z, Ø.......................... Selects and displays all fixed memory of A to Z, and Ø
B BACKUP ...................... Menu to send all file data. Use this
feature to send the entire content.
( or
)
Specified LINK.
( or
)
1
Select LINK/SEND.
15
OHP System
Use the EL-9450/9400 OHP system with the overhead projector to make classroom
presentations convenient for the whole class to see.
EL-945T/ 94T (OHP system )
AC adaptor (optional)
OHP Projection Panel
CE-450L
The CE-450L is included
OHP Panel
Controller
for separate use
(see page 15)
Pro ce d u re
Switch off the OHP Panel Controller.
1
Plug the cable connector of the OHP Projection Panel straight into the connection terminal of the
OHP Panel Controller.
2
(The optional AC adaptor is recommended for extended use of the OHP Projection Panel.)
Switch on the OHP Panel Controller.
3
Operating the OHP Panel Controller.
4
The OHP Projection Panel display is synchronized with the display of the OHP Panel Controller.
Place the OHP Projection Panel on top of the overhead projector to project images onto the screen.
Turn on the power to the overhead projector.
5
16
Menu tree 1
SET UP
(
2ndF SET UP
)
A
B DRG
C FSE
D TAB
E COORD
1 Rect
2 Param
Rad
1 Deg
1 FloatPt
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
0 0
FloatPt
9
2 Rad
3 Grad
2 Fix
Rect
Decimal
Eqn
F AMSWER
G EDITOR
1 Decimal
2 Mixed
1 Eqn
2 Oneline
3 Improp
FORMAT
(
2ndF FORMAT
)
C Y1
D STYLE1
A
B EXPRES
OFF
OFF
1 ON
2 OFF
1 ON
2 OFF
1 Connect
2 Dot
Connect
Sequen
E STYLE 2
1 Sequen
2 Simul
MATH
(
MATH
)
A CALC
B NUM
C PROB
1 random
2 nPr
3 nCr
4!
D CONV
deg
dms
1 log2
2 2x
3 fmin(
4 fmax(
5 d/dx(
1 abs(
1
2
2 round(
3 ipart
4 fpart
5 int
6 min(
7 max(
8 lcm(
9 gcd(
3 xy r(
4 xy
5 r
6 r
(
x(
y(
6
7 dx
∫
E ANGLE
G LOGIC
F INEQ
1
1 and
2 or
3 not
4 xor
5 xnor
1
2
3 >
4 ≥
5 <
6 ≤
2 '
3 "
4 r
5 g
17
Menu tree 2
When coordinate system is Rect
When coordinate system is Param
CALC
(
2ndF CALC
)
CALC
(
2ndF CALC
)
CALC
CALC
1 Value
1 Value
2 Intsct
3 Minimum
4 Maximum
5 X_Incpt
6 Y_Incpt
7 Inflec
LIST
(
2ndF LIST
)
A OPE
B MATH
C L_DATA
1 stoLD
2 RclLD
1 sortA(
2 sortD(
3 dim(
1 min(
2 max(
3 mean(
4 median(
5 sum(
4 fill(
5 seq(
6 cumul
7 df_list
8 aug...(
6 prod(
7 stdDv(
8 varian(
STAT
(
STAT
)
A EDIT
B OPE
1 sortA(
2 sortD(
3 SetList
4 ClrList
C CALC
D REG
edit list
1 1_Stats
2 2_Stats
01 Med Med
02 ax+b
03 a+bx
04 x2
07 abx
08 aebx
09 x-1
10 axb
11 x'
Press ENTER
05 In
06 log
12 y'
DRAW
(
2ndF DRAW
)
A DRAW
B POINT
C ON/OFF
D LINE
E G_DATA
1 StoGD
2 RclGD
1 ClrDraw
2 Line(
1 PntON(
2 PntOFF(
3 PntCHG(
4 PxlON(
5 PxlOFF(
6 PxlCHG(
7 PxlTST(
1 DrawON
2 DrawOFF
select
line type
3 H_Line
4 V_Line
5 T_Line(
6 Draw
7 Shade(
8 DrawInv
9 Circle(
0 Text(
Press ENTER
F PICT
G SHADE
1 StoPict
2 RclPict
1 SET
2 INITIAL
18
Menu tree 3
ZOOM
(
ZOOM
)
C POWER
A ZOOM
B FACTOR
D EXP
E TRIG
1 sin x
X2
X-1
X
1 Auto
2 Box
3 In
Set factor
1 10x
2 ex
1
2
3
of zoom
2 cos x
3 tan x
3 log x
4 In x
4 Out
Press ENTER
4 sin-1
5 cos-1
6 tan-1
x
x
x
5 Default
6 Square
7 Dec
8 Int
9 Stat
F STO
1 StoWin
G RCL
1 StoWin
2 PreWin
2ndF PRGM
PROGM-COM
(
on Program screen)
A PRGM
B BRNCH
1 Label
2 Goto
3 If
4 Gosub
5 Return
C SCRN
D I/O
E COORD
1 Rect
2 Param
1 Print
2 "
3 Input
4 Wait
5 Rem
6 End
1 ClrT
1 Get
2 Send
2 ClrG
3 DispT
4 DispG
_
F FORM
G S PLOT
H COPY
1 ExprON
2 ExprOFF
3 Y' ON
1 Plt1(
2 Plt2(
3 Plt3(
1 StoLine
2 RclLine
4 Y' OFF
5 Connect
6 Dot
7 Sequen
8 Simul
VARS
VARS
(
)
_
A EQVARS
Graph equation
B WINDOW
Value of
window
C STOWIN
D L_DATA
E G DATA
_
_
_
_
Value of
stored window
1 L Data 1
2 L Data 2
1 G Data 1
2 G Data 2
_
_
ENTER
Press
3 L Data 3
3 G Data 3
_
_
Press ENTER
Press ENTER
4 L Data 4
4 G Data 4
_
_
5 L Data 5
5 G Data 5
_
_
6 L Data 6
6 G Data 6
_
_
7 L Data 7
7 G Data 7
_
_
8 L Data 8
8 G Data 8
_
_
F PICTUR
1 Pict1
G TABLE
H STAT
stat
Press
ENTER
9 L Data 9
9 G Data 9
_
_
0 L Data 0
0 G Data 0
1 TBLStrt
2 TBLStep
3 TBLList
2 Pict2
3 Pict3
4 Pict4
5 Pict5
6 Pict6
7 Pict7
8 Pict8
9 Pict9
0 Pict0
19
Menu tree 4
EQ VAR
A XY
(
VARS
A
)
B XYT
1 Y1
2 Y2
3 Y3
4 Y4
5 Y5
6 Y6
7 Y7
8 Y8
9 Y9
0 Y0
01 X1T
02 Y1T
03 X2T
04 Y2T
05 X3T
06 Y3T
07 X4T
08 Y4T
09 X5T
10 Y5T
11 X6T
12 Y6T
WIN VAR
A XY
(
VARS
B
)
B T
1 Xmin
2 Xmax
3 Xscl
1 Tmin
2 Tmax
3 Tstep
4 Ymin
5 Ymax
6 Yscl
7 X_Fact
8 Y_Fact
ZOOM VAR
(
VARS
C
)
A STOXY
1 Zm_Xmin
2 Zm_Xmax
3 Zm_Xscl
4 Zm_Ymin
5 Zm_Ymax
6 Zm_Yscl
B STOT
1 Zm_Tmin
2 Zm_Tmax
3 Zm_Tstp
STAT VAR
(
VARS
H
)
A XY
B REGEQN
1 RegEqn
2 a
3 b
4 c
C POINTS
01 n
02 x
03 sx
09 ∑xy
10 y
11 sy
1 x1
2 x2
3 x3
4 y1
5 y2
6 y3
7 Q1
04
x
12
y
05 xmin
06 xmax
07 ∑x
13 ymin
14 ymax
15 ∑y
5 r
6 r2
7 R2
8 resid
08 ∑x2
16 ∑y2
8 Med
9 Q3
PRGM
(
PRGM
)
A EXEC
B EDIT
C NEW
Cleate
new program
01
02
03
04
05
06
01
02
03
04
05
06
Press ENTER
20
Menu tree 5
STAT PLOT
(
2ndF STATPLOT
)
A PLOT1
B PLOT2
Stat plot2
C PLOT3
Stat plot3
D LIMIT
1 SET
2 LimON
E ON/OFF
1 PlotON
2 PlotOFF
Stat plot1
Press
Press
3 LimOFF
ENTER
ENTER
Press ENTER
OPTION
(
2ndF OPTION
)
A CTRST
B MEMCHK
Remain
12345bytes
C DEL
D LINK
E RESET
1 List
1 SEND
2 RECEIVE
1 default
2 All mem
2 GraphEq
3 Program
4 Picture
Press
ENTER
5 G Data
-
6 L Data
-
7 Entry
STAT GRAPH
(
2ndF STATPLOT on PLOT1-3screen
)
A HIST
1 Hist
B B.L.
C N.P.
D N.D.
1 NormDis
E BOX
•
•
1 Broken
1 Norm X
1 Box
2 Norm+_X
2 Broken+
3 Broken
3 Norm _X
•
4 Norm _Y
5 Norm+_Y
6 Norm _Y
F MBOX
H XYLINE
G S.D.
•
•
•
1 xyLine
1 MBox
1 Scattr
2 xyLine+
3 xyLine
2 MBox+
3 MBox
2 Scattr+
3 Scattr
SLIDE
A B-IN
(
SLIDESHOW
)
1 Y X2
2 Y AX+B
3 Y
X
4 Y 1/X
5 Y sinX
6 Y tanX
-1
7 Y cos X
8 Y lnX
SHIFT/CHANGE
(
2ndF SHIFT/CHANGE
)
A SHIFT
1 Y X2
B CHANGE
1 Y X2
2 Y
X
2 Y
3 Y
X
X
3 Y 1/X
4 Y ex
4 Y ex
5 Y lnX
6 Y sinX
7 Y tanX
5 Y sinX
6 Y tanX
8 Y
X
21
Menu tree 6
Y=
(
Y=
)
RECT MODE
PAR MODE
Y1=
X1T=
Y2=
Y3=
Y4=
Y5=
Y6=
Y7=
Y8=
Y9=
Y0=
Y1T=
X2T=
Y2T=
X3T=
Y3T=
X4T=
Y4T=
X5T=
Y5T=
X6T=
Y6T=
(
2ndF OPTION
D
1)
LINK
A SELECT
B BACKUP
back up
_
1 All
2 List
5 G Data
_
6 L Data
3 GraphEq
4 Program
7 Picture
8 A Z,
Press
ENTER
22
Specifications
Specifications
Dimensions W x D x H (mm)
Power
163 x 76 x 19.5 (without hardcase)
R03 (AAA) x 4
CR2032 x 1
96 x 64
Backup Battery
Display
Size (dot)
Line x Characters
Character Size (dot)
Digits (mantissa + exponent)
8 x 16
5 x 7
10 + 2
Memory Total Memory Size
Constant Memory
32 KB
27 + last answer memory
Accessory Protective hard case
Standard Graphing Function graphing
Features
Up to 10
Parametric graphing Up to 6
Zoom, Trace
Table of function values
Statistics Regression models 10
Scatter Plots and Histograms
Box-and-Whisker Diagrams
Other
List
Up to 6 (Maximum length : 999)
Programming
Trigonometry functions (including sec, csc, cot)
Fraction/Decimal conversions
Last entry recall
Last answer recall
Features Equation editor, Shift/Change, Slide show (Built-in), Rapid graph,
unique to
Sharp
Rapid window, Rapid zoom, List grouping
Peripheral CE-450L
CE-LK1P
Unit-to-unit communications cable
PC-Link (Print screen/Data storage)
OHP system (includes controller)
EL-945T/94T
* Design and specifications are subject to change without notice.
* Some products may not be available in some countries.
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EL-9450/9400 Graphing Calculator
Distributed by:
SHARP CORPORATION OSAKA, JAPAN
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