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Sharp EL-531WH

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Sharp EL-531WH Operation Manual

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About

Sharp EL-531WHSharp EL-531WBBK 12 Digit 272 Functions Scientific Calculator
The EL531WBBK performs over 270 advanced scientific functions and utilizes a 2-line display and Multi-Line Playback to make scientific equations easier for students to solve. It is ideal for students studying general math, algebra, geometry, and trigonometry. In addition, it can be used for statistics, biology, chemistry, and general science. Also available in Blue 272 Functions- Increased from 183 Large Display - 2-line, 12 dot + 10 segment display Direct Algebraic Logic (DAL)- Input equations ... Read more

Details
Brand: SHARP
Part Numbers: EL-531WH-BK, EL-531WHBK
UPC: 074000017672

 

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Video review

How to calculate linear regression with your sharp EL 531WH calculator

 

User reviews and opinions

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Comments to date: 2. Page 1 of 1. Average Rating:
calisoTR 11:20pm on Tuesday, May 4th, 2010 
Great value / easy to use Do not let the price fool you, this calculator can do it all.
jetcollins 3:39pm on Wednesday, April 7th, 2010 
Good calculator Bought this calculator for my daughter, as it was the one recommended by her school.

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Documents

doc0

Sharp EL-531WH

Math Calculations

Learning Skills

Introduction:

This sheet will teach you how to use the Sharp EL-531WH calculator to perform basic mathematical operations. Some of the keys that are available for basic calculations on your calculator are explained here. See also our handout for statistical functions. Any further queries please contact Student Central.
This sheet will teach you to:
Use normal calculator mode Recognise basic keys you need to be familiar with Calculate using trig keys Put information into memory Perform basic calculations

1. Location of keys

Page 1 of 9

Learning Skills @ CSU

2. Calculator Modes
Your calculator has 2 different modes. One is for normal calculations and the other for statistical calculations. To put your calculator into normal mode press: MODE 0
If Rad or GRAD appear then press DRG until you have DEG
A small DEG will appear on the top of the screen.
3. Keys to be familiar with
ON/C Turns the calculator on and clears the screen. Clear the screen before each new calculation.
This is the key you must use when you have a negative number to enter.
Example 3.1: -3 + 4 Calculator steps: OR +/3 + 4 =

3 +/- + 4 = Answer = 1

( and ) These are the brackets keys and are used in the same order they appear in a sum.

Example 3.2: a.

This is the key that allows you to work with fractions.

Calculator steps: 1

The screen display will look like 1 r 5. The final answer will be shown as 22 r 35 which reads as

b. Calculator steps: 2

5 = Answer = Page 2 of 9

a bc 3 a bc 4 x 2 a bc

Example 3.3:
This key will square a number

Calculator steps: 5 6

(this means

= Answer = 3136

This key will find the square root of a number
Example 3.4: a. Calculator steps:

= Answer = 4

Answer = 1.857417562
This key is the power key

Example 3.5:

Calculator steps:

(this means 8

4 = Answer = 4096
A logarithm is an alternative way of writing a number. It is particularly useful when working with large numbers.
Example 3.6: log Calculator steps: log 600090 = Answer = 5.77821639

Page 3 of 9

ln This key is next to the log key. You may encounter either of these functions in chemistry or physics subjects. They both involve the base number e, which has an approximate value of 2.7183. The log key mentioned above, as well as our everyday number calculations, revolves around a base number of 10.

Example 3.7:

Calculator steps: SHIFT
ln = Answer = 4023.872394
This is the exponent key. It is used when you need to enter a number into the calculator in scientific notation.

Example 3.8:

1.2.68 102

Calculator steps: 4 Exp Exp 2 = Answer = 500

Scientific Notation

Note: 1.is the scientific notation form of the number 134 000. The exponent key is replacing the 10. Only the decimal number and the power need to be entered.
key is on the top line of the functions section of the calculator

Page 4 of 9

4. Memory keys
To enter a number into the memory: Example 4.1: To enter 852.36 in the memory Calculator steps: 6 STO M+ To recall or use the number stored in the memory: Example 4.2: 78 number stored M+ = Answer = 66 484.08
An M will appear on the display when a number is stored in the memory.

Calculator steps: x RCL

To clear the memory Calculator steps: 0 STO M+ AC

5. Trigonometric keys

To find a ratio given an angle: the angle may be given as degrees or as radians To swap between degrees and radian mode: Press the DRG key (top line on right) This key swaps between degrees mode, radian mode and gradian mode. You will only need to use either degrees or radian measures.

Example 5.1: Sin

= Answer = 0.7880107536
Make sure your calculator is in degrees mode Calculator steps: sin 5 2

Example 5.2: Tan

Make sure your calculator is in radian mode Calculator steps: tan ( 3 x Or 3 x 4 = 4 tan ) = = Learning Skills @ CSU

Page 5 of 9

Answer = -1

6. Review Exercise set 1

Use your calculator to find the value of the following. a.

b. log 345 c. d. e. f.

253461

+ + 3 12

( 283) 3

g. cos

7. Performing calculations
Scientific calculators have an in-built order of operations. This means that the calculator will automatically work out operations in questions following the order of operation rules. Using an equal sign within a calculation or using brackets may be necessary at times in order to get the correct solution.

Example 7.1 2+3 4

The calculator will automatically multiply before adding. Calculator steps: 2 + 3 x 4 = Answer = 14

Example 7.2 (2 + 3) 4

Use the brackets on your calculator or use the equal sign after the 3 to force the addition first. Calculator steps: Or ( 2 + 3 ) x 4 = 2 + 3 = x 4 = Answer = 20

Page 6 of 9

Example 7.3
Calculator steps: 1 ( + 34 ) =
You must use brackets around the bottom line to total the numbers Answer = 0.016949152

Example 7.4

Calculator steps: 5 ( + ) =
You must use brackets around the 13 + 56 Answer = 0.6019292654

Example 7.5

Calculator steps: - = 7 = Answer = 0362428842

Example 7.

523 - 27

9 = Answer = 442

Example 2.7
Calculator steps: log x 5 2

= Answer = 10537.99386

Example 2.8 Cos 49 Calculator steps:
102 cos x 2 = Page 7 of 9 Learning Skills @ CSU

Answer = 66.91802096

8. Review exercise set 2

482 + 753

305 156
Add together 5, 3, 1, 4, 6, 8 and 12 then square the total.

log123 (56 521)

(4 7) 3 12

tan 69o 5.2

Page 8 of 9

9. Answers

Review exercise set 1 a. 337.0896 b. 2.537819095 c. 503.4491037

d. 1116.121191 e. f.

g. 0.8987940463
Review exercise set 2 a. b. 12.20655562 c. 6.56
d. 81 e. 66.31909936 f. 0.4771368935
g. 1.467441149 h. 0.02858333 i. j. 13.54646314 0.159679905

For more information

Visit our Learning Skills website at http://www.csu.edu.au/division/studserv/learning/index.html

Copyright

Learning Skills, Charles Sturt University, December 2008

Page 9 of 9

doc1

Using Sharp EL-531WH

Statistical calculations

Learning Skills

Introduction:

This sheet will teach you how to use the Sharp EL-531WH calculator to perform statistical operations. See also our handout for mathematical functions. Any further queries please contact Student Central.
This sheet will teach you to:
Put your calculator into statistical mode Enter observations Display the descriptive statistics Enter group data Perform linear regression

1. Statistical Mode

To put your calculator into statistics mode press MODE 1 0
The mode key is below the ON/C key.
A small STAT will appear on the display
To clear the statistical memory press, this should be done before entering any new data. 2ndF MODE
2. Entering single variable observations
To enter observations press M+ after entering the observation

Number of scores

The number of scores (n) is 4 this is displayed while entering
Example 2.1 Enter 10, 12, 13, 16 Calculator steps: 10 M+ 12 M+ 13 M+

Page 1 of 5

Learning Skills @ CSU
3. Display the Descriptive Statistics
Calculator symbol mean Sample standard deviation Population standard deviation Sample variance Scores added up

Common symbol

Calculator steps

answer

RCL RCL

12.75 2.5

6.25 51
Scores squared then added up
4. Entering observations from a frequency table
To enter observations from a frequency table type in; Observation Example 4.1: Enter the following table into your calculator score Calculator steps: 2ndF MODE 2ndF 2ndF 2ndF 2ndF STO STO STO STO M+ M+ M+ M+ Frequency 2ndF STO frequency M+
1. Remember when entering new data you must clear the memory first 2. The comma (,) key is next to the M+ key 3. The total number of observations is 33
By using the 2ndF key you are accessing the comma which is used to separate the score from its frequency.
Once the observations are entered the mean and standard deviation are found as above. Page 2 of 5 Learning Skills @ CSU
If the scores are a sample
If the scores are a population

x 12.394 s

12.394

5. Entering Grouped data

To enter grouped data you first have to find the midpoint of each group. This is done by adding together the lowest and highest value from each group and then dividing it by two. We then use these as our observations. Example 5.1: group > 0 up to and including 10 >10 up to and including 20 >20 up to and including 30 >30 up to and including 40 frequency 21 30
To find the midpoint of each group: (0+10)/2=5 (10+20)/2=15 (20+30)/2=25 (30+40)/2=35 Calculator steps: 2ndF (n = 109) If the scores are a sample Approximate: Approximate: Approximate: If the scores are a population Approximate: Approximate: Approximate:
DEL 2ndF 2ndF 2ndF 2ndF STO STO STO STO M+ M+ M+ M+ The mean and standard deviation are only approximate because we are using each class centre to approximate the individual observations

20.138

s 11.272

s2 127.064

11.220

125.898

Page 3 of 5
6. Linear Regression Mode
To put your calculator into statistics mode press MODE 1 1
A small STAT will stay on the display; STAT 1 will show on the display until the next key is pressed.
Again it is necessary to clear previous data before entering any new information. 2ndF MODE
7. Entering x and y data sets
To enter x and y observations press x value STO y value M+
When in linear regression mode the 2ndF key is not required as the key now assumes the (x,y) function shown below the key.
Example 7.1 x score (independent variable) 10 y score (dependent variable) 27
Calculator steps: 2ndF 10 DEL STO STO STO STO STO 27 M+ M+ M+ M+ M+

Page 4 of 5

8. Regression output
RCL ( this will give A the y-intercept of the regression line

A = 16.189

RCL ) this will give B the slope of the regression line

B = 0.946

RCL this will give r the correlation coefficient

r = 0.417

The means and sums are found by using the RCL key and the keys as shown on the calculator. When you have finished your regression question it is important to get out of that mode before doing any other calculations.

9. For more information

Visit our Learning Skills website at http://www.csu.edu.au/division/studserv/learning/index.html

Copyright

Learning Skills, Charles Sturt University, January 2009

Page 5 of 5

 

Technical specifications

Full description

The EL531WBBK performs over 270 advanced scientific functions and utilizes a 2-line display and Multi-Line Playback to make scientific equations easier for students to solve. It is ideal for students studying general math, algebra, geometry, and trigonometry. In addition, it can be used for statistics, biology, chemistry, and general science. Also available in Blue 272 Functions- Increased from 183 Large Display - 2-line, 12 dot + 10 segment display Direct Algebraic Logic (DAL)- Input equations exactly as shown. New Glass Top Design-for clearer, easier reading of the display.

 

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