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TABLE OF
CONTENTS
PAGE
Introduction
1
A word about starting out
2
1.
Addition and subtraction
3
2.
Multiplication and division
7
3.
Brackets
9
4.
Powers
10
5.
Fractions
16
6.
Using the x-1 key
18
7.
Scientific notation
19
8.
Factorial n!21
9.
Using memory
22
10.
Statistics
24
11.
Linear regression
31
12.
Trigonometric functions
34
13.
Exponential and logarithmic functions
36
14.
Degrees, minutes, seconds
38


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Review calculator exercises
40
Calculator solutions
41
Your Notes
43


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Mastering the Calculator using the Sharp EL-531RH
1
Introduction
This is one in a series of booklets prepared to assist students who are learning to use a
calculator. They have been prepared by staff in The Learning Centre from the Office of
Preparatory and ACademic Support (OPACS) at USQ. The series comprises:
Mastering the Calculator
·
Using the Casio fx-100s (also suitable for Casio fx-570)
·
Using the Casio fx-100AU
·
Using the Casio fx-82LB
·
Using the Casio fx-82MS
·
Using the Casio fx-82TL
·
Using the Sharp EL-531LH
·
Using the Sharp EL-556L
·
Using the Sharp EL-531RH
The instructions in this booklet only explain some of the keys available on your calculator
necessary for basic work in data manipulation. If you require more assistance please contact
The Learning Centre. If you would like information about other support services available
from The Learning Centre, please contact
The Learning Centre (TLC)
Learning and Teaching Support Unit (LTSU), S-Block
The University of Southern Queensland
Telephone: 07 4631 2751
Email: [email protected]
Fax: 07 4631 1801
Home page: http://www.usq.edu.au/ltsu


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2
Mastering the Calculator using the Sharp EL-531RH
A word about starting out
· Make sure you are in the correct mode selection and that all previous data is cleared.
· For e.g. to perform arithmetic operations press
· To clear all values press
· To clear memory press
· If your calculator has FIX or SCI or ENG on the display press
until the letters
disappear.
· If your calculator has RAD or GRAD on the display press
until the letter DEG
appears.
· If all else fails press the RESET button on the back of your calculator
(e.g.
- after replacing batteries
- to clear all memory content
- when an abnormal condition occurs and all keys are inoperative).
mode


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Mastering the Calculator using the Sharp EL-531RH
3
1.
Addition and subtraction
1.1 To add numbers
Find the
key
(it is shown on the photograph of the calculator here).
Example
To add 7 and 3, type
The display should read 10
Example
I want to find the total amount I earned in the past four weeks. If I earned $471, $575, $471
and $528, the key strokes would be
The display should read 2045.
addition key
cancel last number key
Backspace
key