Sharp EL-9900 User manual

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
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:

2
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

3
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:
Displayed as follows:
Basic operation

4
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
2
6
Enter the range of the integral.
Complete equation input.
<Basic calculation mode><Advanced calculation mode>
(Integral function)
Select CALC and
1
3
4
5
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.
]
]

5
NotesKey Operation Display
2
Enter the equation.
Calculate the expression.
4
See page 1 and switch the
calculator to Basic calculation
mode.
Clear the display.
1
3

6
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
2
-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.
1
2
3
4
5
6
7
8
9

7
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.
10
11
12
13
14
15
•••
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.

8
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.
1
2
3
(Amend the range size.)
4

9
The EL-9900 has detailed settings, as shown below, so that graphs can be displayed
in various formats.
(Displays in bold outline are the default settings.)
Choose this setting to display
the written form of equations
on the graph screen.
B EXPRESS
The numeric derivative (dx/dy)
can be displayed on the graph
screen.
C Y'
The graph axes can be made
invisible with this menu item.
D AXIS
An X-Y grid can be displayed
in the background.
E GRID
Using the DRAW function, you can also add lines, circles and dots to the graph
screen, and change the settings for line appearance and for shading. Below are two
examples.
EXPRESS OFF
Y' OFF
AXIS OFF
GRID OFF
EXPRESS ON
Y' ON
AXIS ON
GRID ON
Normal Line appearance changed
Normal Shaded
Sets the line appearance of
each graph to solid line, dotted
line, bold line, locus or dots.
D LINE
Use this function to illustrate
inequalities, intersections and
complements of multiple graphs.
G SHADE
Extra Options

10
1
2
Procedure
Turn off the EL-9900.
Connect the EL-9900 to the PC by using the
PC-Link Cable
(see above diagram).
Open PC-Link Software.
Switch on EL-9900.
*It is essential to use the same port for both the PC
and the PC-Link Software.
Operate according to the instructions on
the screen.
What is PC LINK?
IBM
®
PC
PC-Link
Software
Link Cable
CE-LK2
Main Unit
CE-LK2(PC-link system)
• Creates and edits EL-9900 programs on a PC.
• Receives and saves programs and various data from EL-9900.
• Makes a backup of all the contents of EL-9900.
• Sends programs and various data to EL-9900.
• Loads image data of EL-9900.
• Converts programs and various data files into a Text File. Converts
program text files into a Program File.
• Prints out programs and various data files.
3
4
5
Connect the EL-9900 with a PC to expand the possibilities of data exchange using PC-
Link Software.
PC-LINK

11
*
mark desired data to be
sent.
]
]
Set to set communication
7
8
9
Sender
Communication Procedure
CE-451L
Communication cable
EL-9900 EL-9900
List of the SEND menu
Receiver
3
4
( or )
6
2
1
Plug the cable into both calculators.
Turn power on.
Specified LINK.
CE-451L
(Communication cable)
Select LINK/SEND.
Select SEND/ALL.
( or )
( or )
Select ‘LI’, ‘YI’
Execute Sending function.Select LINK/RECEIVE.
Specified LINK.
List of sendable data will
appear on screen. ]
]
5
( or )
Transfer data between two EL-9900 calculators using the communication cable (CE-451L).
A SELECT ....................... Sends files individually as described below.
01 ALL ............................ Selects and displays all files.
02 List............................. Selects and displays all list files.
03 Matrix ........................ Selects and displays all matrix files.
04 Graph Eqn.................. Selects and displays all graph equations.
05 Solver Eqn ................. Selects and displays all solver equations.
06 Program ..................... Selects and displays all program files.
07 G_Data....................... Selects and displays all graph data files.
08 L_Data ....................... Selects and displays all list data files.
09 Picture ....................... Selects and displays all picture data files.
10 Slide .......................... Selects and displays all self-made slide shows.
11 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.

12
1
2
3
4
5
Procedure
Plug the cable connector of the See-Through Display Panel straight into the connection terminal
of the Controller.
(The optional AC adaptor is recommended for extended use of the See-Through Display Panel.)
Turn on the power to the overhead projector.
Operating the Controller.
The displays of the See-Through Display Panel and the Controller are synchronized. Place the See-
Through Display Panel on top of the overhead projector to project images onto the screen.
Switch on the Controller.
Switch off the Controller.
AC Adapter (optional)
for Display Panel
See-Through
Display Panel
Controller
EL-99T (OHP system)
Use the EL-9900 OHP system with the overhead projector to make classroom
presentations convenient for the whole class to see.
OHP System

13
List of Menu/Sub-menu Items
CATALOG function lets you access almost all the functions and commands.
Square brackets indicate that the value or variable is optional.
1. MATH menus
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode
MM
MM CALC
log
2
log
2
value
A01
2
X
2
value
A02
fmin( fmin( equation, lower limit of x, upper limit of x )
A03
fmax( fmax( equation, lower limit of x, upper limit of x )
A04
d/dx( d/dx( equation, value of x [, tolerance] )
A05
∫∫ equation, lower limit, upper limit [, tolerance] dx
A06
dx ∫ equation, lower limit, upper limit [, tolerance] dx
A07
∑ ( ∑ ( expression, initial value, end value [, increment] )
A08
sec sec value
A09
csc csc value
A10
cot cot value
A11
sec
–1
sec
–1
value
A12
csc
–1
csc
–1
value
A13
cot
–1
cot
–1
value
A14
sinh sinh value
A15
cosh cosh value
A16
tanh tanh value
A17
sinh
–1
sinh
–1
value
A18
cosh
–1
cosh
–1
value
A19
tanh
–1
tanh
–1
value
A20
sin sin value
A1
cos cos value
A2
tan tan value
A3
log log value
A4
10
x
10
value
A5

14
MM
MM NUM
abs( abs( value )
B1B1
round( round( value [, digit number of decimals] )
B2B2
ipart ipart value
B3B3
fpart fpart value
B4B4
int int value
B5B5
min( min( value A, value B ) or min( list )
B6B6
max( max( value A, value B ) or max( list )
B7B7
lcm( lcm( natural number, natural number )
B8B8
gcd( gcd( natural number, natural number )
B9B9
remain natural number remain natural number
B0
MM
MM PROB
random random [(number of trial)]
C1C1
rndInt( rndInt(
minimum value, maximum value [, number of
trial]
)
C2C2
rndCoin rndCoin [(number of trial)]
C3
rndDice rndDice [(number of trial)]
C4
nPr value A nPr value B
C3C5
nCr value A nCr value B
C4C6
! value !
C5C7
MM
MM CONV
→ deg value → deg
D1D1
→ dms value → dms
D2D2
xy → r( xy → r( x-coordinate, y-coordinate )
D3
xy → θ (xy → θ ( x-coordinate, y-coordinate )
D4
r θ → x( r θ → x( r-coordinate, θ -coordinate )
D5
r θ → y( r θ → y( r-coordinate, θ -coordinate )
D6
MM
MM ANGLE
° value ° [ value ’ value "]
E1E1
’ value ° value ’[ value "]
E2E2
"
value ° value ’ value "
Print "
character strings ["]
E3E3
r value r
E4E4
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode

15
2.LIST menus
g value g
E5
MM
MM INEQ
= value A = value B
F1
≠ value A ≠ value B
F2
> value A > value B
F3
≥ value A ≥ value B
F4
< value A < value B
F5
≤ value A ≤ value B
F6
MM
MM LOGIC
and value A and value B
G1
or value A or value B
G2
not not value
G3
xor value A xor value B
G4
xnor value A xnor value B
G5
MM
MM COMPLEX
conj( conj( complex number )
H1
real( real( complex number )
H2
image( image( complex number )
H3
abs( abs( complex number )
H4
arg( arg( complex number )
H5
MM
MM (in the N-base calculation mode) LOGIC
and value A and value B
A1
or value A or value B
A2
not not value
A3
neg neg value
A4
xor value A xor value B
A5
xnor value A xnor value B
A6
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode
@@
@@ ll ll OPE/NAME
L1 No arguments
A1
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode

16
L2 No arguments
A2
L3 No arguments
A3
L4 No arguments
A4
L5 No arguments
A5
L6 No arguments
A6
sortA( sortA(
list name [, subordinate list name1, ... ,
subordinate list name n]
)
A1B1
sortD( sortD(
list name [, subordinate list name1, ... ,
subordinate list name n]
)
A2B2
dim( dim( list )
A3B3
fill( fill( value, list )
A4B4
seq( seq( equation, start value, end value [, increment] )
A5B5
cumul cumul list
A6
df_list df_list list
A7B6
augment( augment( list 1, list 2 )
A8B7
list → mat( list → mat( list 1, ..., list n, matrix name )
A9
mat → list( mat
→ list( matrix name, list name1, ..., list name n )
mat
→ list( matrix name, column number, list name )
A0
@@
@@ ll ll MATH
min( min(
value A, value B ) or
min(
list )
B1C1
max( max(
value A, value B ) or
max(
list )
B2C2
mean( mean( list [, frequency list] )
B3C3
median( median( list [, frequency list] )
B4C4
sum( sum( list [, start number, end number] )
B5C5
prod( prod( list [, start number, end number] )
B6
stdDv( stdDv( list [, frequency list] )
B7C6
varian( varian( list [, frequency list] )
B8C7
@@
@@ ll ll L_DATA
StoLD StoLD natural number
C1D1
RclLD RclLD natural number
C2D2
* “list”in the above table means a list or a list name.
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode

17
3. STAT menus
@@
@@ ll ll { }
{ No arguments
E1
} No arguments
E2
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode
SS
SS EDIT/OPE
EDIT No arguments
AEAE
sortA( sortA( list [, subordinate list 1, ..., subordinate list n] )
B1B1
sortD( sortD( list [, subordinate list 1, ..., subordinate list n] )
B2B2
SetList SetList [list name 1, list name 2, list name 3, ...]
B3B3
ClrList ClrList list name1 [, list name 2, ...]
B4B4
SS
SS CALC
1_Stats 1_Stats [x list name [, frequency list]]
C1C1
2_Stats 2_Stats [x list name, y list name [, frequency list]]
C2C2
ANOVA( ANOVA( list name 1, list name 2 [, ...] )
C3
SS
SS REG
Med_Med Med_Med (
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D01D1
Rg_ax+b Rg_ax+b (
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D02D2
Rg_a+bx Rg_a+bx (
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D03
Rg_x2Rg_x2(
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D04D3
Rg_x3Rg_x3
(list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D05
Rg_x4Rg_x4(
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D06
Rg_ln Rg_ln
(list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D07
Rg_log Rg_log (
list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D08
* “list”in the above table means a list or a list name.
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode

18
Rg_ab
x
Rg_ab
x
( list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D09D4
Rg_ae
bx
Rg_ae
bx
( list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D10
Rg_x
-1
Rg_x
-1
( list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D11D5
Rg_ax
b
Rg_ax
b
( list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D12
Rg_logistic Rg_logistic
(list name for x, list name for y
[, frequency list
] [ , equation name to store] )
D13
Rg_sin Rg_sin (
[iterations,] list name for x, list name for y
[, frequency list
] [ , period ] [ , equation name to
store]
)
D14
x' value or list x'
D15D6
y' value or list y'
D16D7
SS
SSTEST
χ
2
test No arguments
E01
Ftest2samp No arguments
E02
Ttest1samp No arguments
E03
Ttest2samp No arguments
E04
TtestLinreg No arguments
E05
Tint1samp No arguments
E06
Tint2samp No arguments
E07
Ztest1samp No arguments
E08
Ztest2samp No arguments
E09
Ztest1prop No arguments
E10
Ztest2prop No arguments
E11
Zint1samp No arguments
E12
Zint2samp No arguments
E13
Zint1prop No arguments
E14
Zint2prop No arguments
E15
InputList No arguments
E16
InputStats No arguments
E17
SS
SS DISTRI
pdfnorm( pdfnorm( value [, mean, standard deviation] )
F01
Functions
Commands Syntax Keystrokes
Advanced mode Basic mode