Sharp EL-9450 Calculator User Manual


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NOTICE
•
The material in this manual is supplied without representation or warranty of any kind. SHARP assumes no
responsibility and shall have no liability of any kind, consequential or otherwise, from the use of this material.
•
SHARP strongly recommends that separate permanent written records be kept of all important data. Data
may be lost or altered in virtually any electronic memory product under certain circumstances. Therefore,
SHARP assumes no responsibility for data lost or otherwise rendered unusable whether as a result of im-
proper use, repairs, defects, battery replacement, use after the specified battery life has expired, or any other
cause.
•
SHARP assumes no responsibility, directly or indirectly, for financial losses or claims from third persons
resulting from the use of this product and any of its functions, the loss of or alteration of stored data, etc.
•
The information provided in this manual is subject to change without notice.
•
Screens and key shown in this manual may differ from the actual ones on the calculator.
•
Some of the accessories and optional parts described in this manual may not be available at the time you
purchase this product.
•
Some of the accessories and optional parts described in this manual may be unavailable in some countries.
•
All company and/or product names are trademarks and/or registered trademarks of their respective holders.
Precautions for handling batteries
•
Fluid from a leaking battery accidentally entering an eye could result in serious injury. Should this occur, wash
with clean water and immediately consult a doctor.
•
Should fluid from a leaking battery come into contact with your skin or clothes, immediately wash with clean
water.
•
If the product is not to be used for some time, to avoid damage to the unit from leaking batteries, remove them
and store in a safe place.
•
Do not leave exhausted batteries inside the product.
•
Do not fit partially used batteries, and be sure not to mix different batteries types.
Note of calculation accuracy
•
In principle, the calculation error is ±1 of the last digit (in case of exponential display, the calculation error is
±1 of the last digit of the mantissa display.)
•
The calculation error increases in continuous calculations due to accumulation of each calculation error (that
is the same for a
b
,
a
◊b, n!,
e
x
, ln, etc., where continuous calculations are performed internally).
•
Calculation errors will accumulate and become larger into the vicinity of inflection points and singular points
of functions. (For example, calculation of sinh x or tanh x at x = 0).
INTRODUCTION
Congratulations on purchasing the EL-9450 Graphing Calculator. The basic functions of the EL-9450 are the
same as the EL-9400. See the enclosed EL-9400 operation manual for almost all the operations. This supple-
ment describes about the features added from the EL-9400, such as fraction calculations (Manual Calculations),
pie chart (Statistics), and int÷/remain functions (Manual Calculations). It also describes the feature updates, such
as capability of a self-made Slide Show, random function, commands for programming. Read both the EL-9400
Operation Manual (where EL-9400 and CE-LK1 should be read as EL-9450 and CE-LK1P respectively) and this
supplement before operation.
Please store both the manual and the supplement in a convenient location for your reference.
EL-9450
Supplement
GRAPHING CALCULATOR
02CGK (TINSE0457THZZ)
PRINTED IN CHINA
Communication port*
*
Communication between EL-9450 and EL-9400 is not possible.
Use CE-LK1P and PC to transfer the data from the EL9400.
THE NEW KEYS FOR EL-9450
SPACE
EN TRY
COMMUNICATION PORT
EXE
L
2
L
3
L
1
L
4
L
5
L
6 LIST
OPT ION
RCL
QUI T
SET UP
INS
sin
OFF
PRGM
X/T
DRAW
CLIP
TBLSET FORMAT
CALC
STAT PLOT
ANS
cos
tan
A LOCK FRAC
INT
SHIFT CHANGE
EL-9450
CLIP Key
FRAC key
INT ÷ key
a
b
/c key
NEW FEATURES
Fraction Calculation Features
a
b
/c Enters a mixed number.
<Example>
•
Enter 4
6
5
4
a
b
/c 5 >
6
Note: When no value is entered prior to this key, the number areas will be left blank. If the calculator is set
to one-line mode, a
b
/c enters “ ” (integer-fraction separator) only. Use a
b
/c in combi-
nation with as follows.
•
Enter 4
6
5
in one-line mode.
4 a
b
/c 5
6
*
Integer part of the mixed number must be a natural number. A variable cannot be
used. Using parenthesis in an equation, such as (1+2) 2 3 or (5) 2 3, will
cause syntax error.
*
When a numerator or a denominator is negative, the calculation will cause error.
Automatic/Manual Simplification
In the mixed or fraction calculation, you can select the automatic (default) or manual simplification of
a fraction.
To set to the manual simplification:
1 Press
SETUP
.
2 Press .
*
The answer of division will not simplify
automatically. Use Simp feature of FRAC
menu to simplify the fraction.
FRAC menu
[1 Simp] Simplifies a given fraction stored in the ANSWER memory. (when the SIMPLE mode is
set to Manual and the ANSWER mode is set to Mixed or Improp in the SETUP menu.)
•
Specifying no common factor
Simplify the fraction using the lowest common factor other than 1.
<Example>
1 12
>
5
12
FRAC
(Sim-
plified by 2, the lowest common
factor of 12 and 6.)
FRAC
(Sim-
plified by 3, the lowest common factor of 6 and 3.)
•
Specifying a common factor
Simplify the fraction using the specified common factor.
<Example>
1 12
>
5 12
FRAC
6 (Manually specify 6, the Great-
est Common Factor of 12 and 6, to simplify the fraction.)
Notes: • If the wrong number is specified for a common factor,
an error will occur.
• Calculation may take considerable amount of time if
the factor is set to a large digit integer (6-digit or more, for example).
[
2→a b/c
] Converts an improper fraction to a mixed number.
<Example>
•
Change
12
5
to a mixed number.
12 5 > FRAC
[3
→
b/c] Converts a mixed number to an improper fraction.
<Example>
•
Change 2
5
2
to an improper fraction.
FRAC
Integer Division
INT
÷ Performs an integer division, and returns a quotient and a remainder.
<Example>
•
Get a quotient and a remainder of 50 ÷ 3.
50
INT
÷
3
*
Quotient value is set to Ans and remainder is not stored.
*
Calculation range: 0
<
_
x
<
10
10
B NUM submenu in MATH menus
[0
remain
]
natural number
remain
natural number
Returns the remainder of a division.
<Example>
•
Obtain the remainder when 123 is divided by 5.
1 2 3 5
*
Calculation range: 0
<
_
x
<
10
10
New Feature for STATISTICS Menu
Pie Chart
Pie graph of sample (x)
•
Maximum number of division is 8.
* Calculation range: 0
<
_
x
<
10
100
•
Data can be displayed in two modes:
•
Value display: 7 digits
•
Percentage display: Fixed decimal (2 digits decimal)
•
Pie graphs are drawn in the same order as on the specifying list.
•
Pie graphs cannot be displayed simultaneously with other graphs and X/Y
axis, though lines or dots can be drawn. The coordinates of the free-moving
cursor depend on the Window settings.
•
The values are stored in variables A to H.
•
As all the displayed values are rounded off in the percentage display mode, the total percentage may not be 100.
To set the graph format to a pie graph.
1. Press
STAT PLOT
- and and move the cursor
to GRAPH.
2. Press
STAT PLOT
again.
3. Press (PIE) and press (Pie) or (Pie %).
4. Press
GRAPH
to draw the graph.
* Press
STAT PLOT
to select PlotOFF before entering
to the next section.
Additional commands of programming for statistical data plotting
G S_PLOT menu
(see page 163-164, Prgramming Commands)
[4 PlotON] (Sets drawing of the specified statistical graph to on.)
[5 PlotOFF] (Sets drawing of the specified statistical graph to off.)
*
If no number is specified, the above commands turn on/off
all of the statistical graphs.
[4
→
A.xxx]Converts a fraction to a decimal number.
<Example>
•
Change
12
5
to a decimal number.
FRAC
EL-9450_A3_en 02.3.22, 2:05 PM1