Sharp EL-506H User manual

SCIENTIFIC CALCULATOR
MODEL
EL-506H
INSTRUCTION MANUAL
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(ELECTRONIC CALCULATOR)
LIMITED WARRANTY:
SHARP ELECTRONICS CORPORATION warrants this product to the original purchaser to be free from defective materials and
workmanship. Under this warranty the product will be repaired or replaced, at our option, without charge for parts or labor, with
the exception of batteries, when returned to a SHARP CONSUMER FACTORY SERVICE CENTER listed in the instruction
booklet supplied with your unit.
This warranty does not apply to any appearance items nor to any product whose exterior has been damaged or defaced, nor to any
product subjected to misuse, abnormal service or handling, nor to any products altered or repaired by other than a SHARP CON
SUMER FACTORY SERVICE CENTER. This warranty does not apply to any product purchased outside the United States, its
territories, or possessions.
The period of this warranty covers one (1) year on parts and one (1) year on labor from date of purchase.
This warranty entitles the original purchaser to have the warranted parts and labor rendered at no cost for the period of the
warranty described above when the unit Is carried or shipped, prepaid, to a SHARP CONSUMER FACTORY SERVICE CENTER
together with proof of purchase.
THIS SHALL BE THE EXCLUSIVE WRITTEN WARRANTY OF THE ORIGINAL PURCHASER AND NEITHER THIS
WARRANTY NOR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, SHALL EXTEND BEYOND THE PERIOD OF THE
TIME LISTED ABOVE, IN NO EVENT SHALL SHARP BE LIABLE FOR CONSEQUENTIAL ECONOMIC DAMAGE OR CON
SEQUENTIAL DAMAGE TO PROPERTY. SOME STATES DO NOT ALLOW A LIMITATION ON HOW LONG AN IMPLIED
WARRANTY LASTS OR AN EXCLUSION OF CONSEQUENTIAL DAMAGE, SO THE ABOVE LIMITATION AND EXCLU
SION MAY NOT APPLY TO YOU. IN ADDITION, THIS WARRANTY GIVES SPECIFIC LEGAL RIGHTS, AND YOU MAY
HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.

INTRODUCTION 3
OPERATIONAL NOTES 3
FEATURES . 5
NORMAL CALCULATIONS . 7
1. Addition, Subtraction 7
2. Multiplication, Division 7
3. Memory Calculations 10
SCIENTIFIC CALCULATIONS 11
1. Trigonometric Functions and Second Function .11
2. Inverse Trigonometric Functions 12
3. Hyperbolic and Inverse Hyperbolic Functions. 12
4. Power Functions 13
5. Roots 13

6. Logarithmic Functions. . < . ; ..... ... . ^ . . • . ? .. • ? • : » • / • • • 14
7. Exponential Functions .. .. . .. . .-i . . .. . .. . . . . . . . 14
8. Reciprocals 15
9. Factorial ■ 15
10. Percent Calculations . . . .. . . . ....... . 16
11. Scientific Notation 16
12. Angle/Time Conversions 18
13. Coordinate Conversion 19
14. Hexadecimal «• decimal notation conversions . 21
15. Applications . '. .24
STATISTICAL CALCULATION .... . ... .. .' .. . 27
ERRORS ^ . . V-. . . .. . 30
THE KEYBOARD ^ . . . V. . . . . 39
OPERATING CONTROLS i ........... 40
DISPLAY ; .. .. 50
SPECIFICATIONS 53
BATTERY REPLACEMENT 55

INTRODUCTION
Thank you for your purchase of the SHARP scientific calculator, model EL-506H.
This manual will introduce you to the Sharp EL-506H scientific calculator.
Each section in this manual may be divided into basic and advanced material. The
advanced material is labeled "supplementary." The supplementary sections may be
skipped without hampering your ability to operate the calculator. You may wish to
return to the supplementary sections as your skill in operating the EL-506H
OPERATIONAL NOTES
Since the liquid crystal display is made of glass material, treat the calculator
with care. Do not put the "EL-506H" in your back pocket as it may be
damaged when you sit down.

To insure trouble-free operation of your SHARP calculator, we recommend the fol
lowing:
1. The calculator should be kept in areas free from extreme temperature changes,
moisture and dust.
During summer weather, vehicles left in direct sun light are subject to high tem
perature build up.
Prolonged exposure to high temperature may cause damage to your calculator.
2. A soft, dry cloth should be used to clean the calculator. Do not use solvents or a
wet cloth.
3. If the calculator will not be operated for an extended period of time, remove the
batteries to avoid possible damage caused by battery leakage.
4. If service of your calculator is required, use only an authorized SHARP service
center.
5. Keep this manual for further reference.
Name label
Write your name on the attached name label and stick it on the back of the
calculator.

Scientific Functions
• Direct formula entry for entering formulas as they are written with no need
for translation into machine language.
Example 5 + 2 x sin 30 + 24 x 5' =
Operation CEl E [2][X] [B foil sin I [+1 FB [4]
[X] (T][S[I] S
• 3 levels of parentheses and 4 levels of pending operations for solving more
complicated formulas.
• Hexadecimal <-► decimal notation conversion
Hexadecimal notation system is mainly used in computer programming.
Computer engineers and programmers have been in urgent need for a simple
conversion of decimal and hexadecimal notations.
Now, EL-506H has solved the problem. Simply enter a number in base 16 or
10, the EL-506H will then give you the answer instantly.

• Preprogrammed for 48 functions: trigonometric. Inverse trigonometric, logari
thmic, hyperbolic, arc hyperbolic, statistical and others.
Useful Keys for Solutions of Math Problems
• Statistical calculations with statistical mode [STAT], number of samples/S;*:
[nSA:], mean/Sx^ [je 1, standard deviation [so], enter data/correct data
[DATA CD] keys.
• Independently accessible memory.
• DEG/RAD/GRAD selector key.
• Degree/minute/Second conversion key for decimal degree transformation.

NORMAL CALCULATIONS
Press the l2ndFl lF-E| and I 8 I (or [91 )kevs. (For free floatingcalculation. Seepage 16)
1. Addition, Subtraction
Key in the following;
12 H 45.6 H 32.1 [+] 789 [3 741 [J] 213
Answer: 286.5
2. Multiplication, Division
a. Key in the following: 841 [X] 586 [3 .12 [=] Answer: 4106883.333
b. Key in the following:
427 [+] 54 [X] 32 31 7 B 39 [X] 2 B Answer: 595.8571429
Note that multiplication and division have priority to addition and subtraction.
I If nothing appears on the display during calculation do not continue making 1

Supplementary •
priority level
The machine, provided with a function that judges the priority level of individual
calculations, permits keys to be operated according to a given mathematical formula.
The following shows the priority level of individual calculations.
(1) Function m+
(2)
(Calculations which are given the same priority level are
' executed in sequence.)
(4) +, —
(5) =, A%,
The calculation in parentheses has priority to others.
Ex. Key operation and sequence of calculation in 5 + 2 x sin 30 + 24 x 5® = 3,006
5 m 2 ® 30_^ S] 24 ® 5 [S3 ® Rut the angularmode
: I CO i i i af'DEG",

When calculations are excuted from higher priority one in sequence a lower priority
one must be reserved. The machine is provided with memories of four (4) levels to
meet such requirement.
As the memories can be also used in a calculation including parentheses, calculation
can be performed according to a given mathematical formula unless parentheses and
pending operation exceed 4 levels in total.
• Parenthesis | ( ' key can be operated up to 3 times In 1 level.
• Functions are calculated immediately after key operation without being retained.
^/x, n!, -> DEG, D-MS, etc.)
• In calculations including no parentheses, pending does not occur beyond 3 levels.
Ex. a r+^ b Pending of 1 level
(1)
a [±] [=]
(1) (2)
[=]
(1) (2)
Pending of 2 levels
Pending of 3 levels
End of Supplementary 1

3. Memory Calculations
The independently accessible memory is indicated by the three keys:
Before starting a calculation clear the memory by pressing |on/c| and .
Key in : 12 [+] 5 Answer: 17
>• To subtract key in: 2 [+] 5 ^ |m+1
Answer to this equation: —7
Key in IRMI to recall memory: 10
Key in: 12 [X] 2 IXI
Answer: 24 (Also takes place of 10 In memory)
Key in: 8 (T] 2
Answer: 4 IRMI : 28
Note: a Memory calculations are impossible in the "STAT" mode. (Statistical
calculation mode)
a When subtracting a number from the memory, press the ^ and @
keys.

Press the |2ndF| lF-El and fsl (or [9] ) keys.
1. Trigonometric functions and Second Function^pQ
The angular mode is designated by the l2ndFl pT~|keys. As you press this key the
mode "DEG", "RAD", "GRAD" will appear at the lower part of the display.
Put the angular mode at "DEG".
Calculate: Sin 30° + Cos 40° =
Key in the following: 30 I sin I pfl 40 [cosI
Answer: 1.266044443
The yellow key in the upper left of the calculator marked "2nd F" must be used
to designate the material appearing in brown above each key. When this key is
depressed, the designation "2nd F" will appear in the lower part of the display.
If you press this key in error, press it a second time and the "2nd F" designation
will disappear.
Calculate: Cos 0.257r

Put the angular mode at "RAD".
Key In: .25 [X] CEZI [=] [^
Answer: 0.707106781 (Remember to use the second function key)
2. Inverse Trigonometric Functions
Calculate: Sin~' 0.5 In .
Put the angular mode at "DEG". I^ey
Key In: .5 l2n(IFl |sin-'|
Answer: 30
Calculate: Cos"' —1
Put the angular mode at "RAD". / To
Key in: 1 lindFl |cos"'| *
Answer: 3.141592654 (Value of rr
In t
/To
his manual, we will always show the
key's second functions as follows;
sin'^
iZndFl I sin I
|2nd^ fiin^
enter a negative number, press the\
\ key after numerals. /
3. Hyperbolic and Inverse Hyperbolic Functions
When using the hyperbolic and inverse hyperbolic functions "HYP" will appear in
the lower part of the display.

Calculate: Sinh 4
Key in: 4 I hyp I sin I
Answer: 27.2899172
Calculate: Sinh"' 9
Key In: 9 IZndFl |arehyp| l^_nj
Answer: 2.893443986
4. Power Functions
Calculate: 20^
Key in: 20
Answer: 400
Calculate: 3' and 3'
Key In: 3 [S 3 ®
Answer: 27
5. Roots
Calculate: V25
Key In: 25 E]
Answer: 5
Key In: 3 [S4 @
Answer: 81

Calculate: Cube root of 27
Key in: 27 [iridFl [5?^
Answer: 3
Calculate fourth root of 81
Key In: 81 IZndFj i-FV7l 4 [K1
Answer: 3
6. Logarithmic Functions
Calculate: In 21, log 173
Natural Logarithms: Key in: 21 1 In I
Answer: 3.044522438
Common Logarithms: Key in: 173 log I
Answer: 2.238046103
7. Exponential Functions
Calculate: e''"*"
Key in: 3.0445 IZndFl e-r I

Answer: 20.99952881 (21 as in item "6" above)
Calculate: 10""
Key In: 2.238 IWI
Answer: 172.9816359 (173 as In Item "6" above)
8. Reciprocals
Calculate: 1/6 + 1/7
Key in: 6 aZS [+] 7 UZS
Answer: 0.309523809
9. Factorial
Calculate: 69!
Key in: 69 SI]
Answer: 1.7112245 98(1.7112245x 10")
Note that the Error section deals with the calculation limits of the calculator.

10. Percent calculations
Calculate: 45% of 2,780 (2,780
Key in; 2780 [X] 45
Answer; 1251
Calculate: 547 —473 ,
473
Key in: 547 [3 473 ItndFl |4%1
Answer: 15.6448203
11. Scientific Notation
Decimal Places
The l2ndFl |TAB| keys are used to specify the number of decimal digits in the calcula
tion result. The number of places after the decimal point is specified by the nu
meral key ( [O] ~ Ct] ) pressed after the|2n<lF| |TAB| keys. For free floating calcula
tion press the [g] or [5] key after ItndFjjTABl . Carry over will be automatically
rounded.
First Press jZndFl iTABj Key in 1.23456789

Display reads 1.23456789
Press |2ndF| ITABI [31 , display reads 1.235
Press l2fKlFl iTABi m , display reads 1.2345679
Calculate 1.2 x 10"'^ x 4.5 x 10"'°
Key in: (^(^[8] 1.2 [i^ 12 [+3 [X] 4.5 [^10 ^ [=]
Answer; 5.4 -22
If you wish to place a number into the calculator in scientific notation you must
use the lEXPj key. If you wish to convert from floating decimal to scientific
notation, you must use the key |F-E| .
Calculate 1.2 x 10°° x 1.5 x 10=
Key in: 1.2 [Ix^ 20 [^ 1.5fEXPl5
Answer: 1.8 25(1.8 x 10°=)
Calculate 1.992 x 10" x 6.668 x 10"°°
Key in: 1.992ixE33 [X] 6.668[1^23 @ [=]
Answer: 1.3282656 11 (1.3282656 x 10")
If a calculation is displayed in the floating decimal point system, pushing the |F~E|
key displays the result in scientific notation. Pushing the key again displays the
result in the floating decimal point system.

Kevin: 1234567898 [=]
Display reads: 1234567898.
Press [F-El Display reads 1.2345678 09
Press jF-El Display reads 1234567898.
12. Angle/Time convsrcions
To convert an angle given as degrees/minutes/seconds to Its decimal equivalent. It
must be entered as Integer and decimal respectively.
Convert 12°47'52" to Its decimal equivalent
Key In: 12.4752 ES§
Answer: 12.79777777
When converting decimal degrees to the equivalent degrees/minutes/seconds, the
answer Is broken down: Integer portion = degrees; 1st and 2nd decimal digits =
minutes; 3rd and 4th digits = seconds; and the 5th through end decimal digits
are decimal seconds.
Convert 24.7256 to Its degree/minute/second equivalent
Key In: 24.7256 IZndFl |'D.ms|
Answer: 24.433216 or 24°43'32"