LibreOffice-Suite-Math-6.3/C2/Greek-characters-and-Quadratic-equations/English - Revision history

Nirmala Venkat at 10:59, 1 September 2022

2022-09-01T10:59:22Z

Madhurig at 09:16, 1 September 2022

2022-09-01T09:16:50Z

Madhurig at 07:38, 1 September 2022

2022-09-01T07:38:41Z

Madhurig at 06:55, 1 September 2022

2022-09-01T06:55:52Z

Nancyvarkey at 11:06, 29 June 2022

2022-06-29T11:06:35Z

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Madhurig at 09:17, 1 June 2022

2022-06-01T09:17:05Z

Nancyvarkey at 08:46, 1 June 2022

2022-06-01T08:46:55Z

Madhurig at 08:05, 30 May 2022

2022-05-30T08:05:19Z

Madhurig: Created page with "Title: Greek characters and Quadratic Equations. Keywords: Libreoffice math, libreoffice writer, greek characters, percentage sign, markup, font size, alignment, quadratic..."

2022-05-30T07:52:17Z

Created page with "Title: Greek characters and Quadratic Equations. Keywords: Libreoffice math, libreoffice writer, greek characters, percentage sign, markup, font size, alignment, quadratic..."

New page

Title: Greek characters and Quadratic Equations.

Keywords: Libreoffice math, libreoffice writer, greek characters, percentage sign, markup, font size, alignment, quadratic equation, video tutorial.

{| border=1
|| '''Visual Cue'''
|| '''Narration'''
|-
|| '''Slide''':Title
|| Welcome to the '''Spoken tutorial''' on '''Greek Characters and Quadratic Equations'''.
|-
|| '''Slide''':

'''Learning Objectives'''
|| In this tutorial, we will learn to:

* Insert '''Greek '''characters.
* Write steps''' '''to solve a quadratic equation.

|-
|| '''Slide''':

'''System Requirements'''

|| This tutorial is recorded using,

* '''Ubuntu Linux OS''' version 18.04 and
* '''LibreOffice Suite''' version 6.3.5

|-
|| '''Slide''':

'''Prerequisites'''

'''https://spoken-tutorial.org'''
|| To follow this tutorial, learner should be familiar with '''Math''' interface.

If not please access the relevant tutorials on this website.

|-
|| '''Slide''':

'''Code Files'''
||
* The files used in this tutorial are provided in the ''' Code files''' link.
* Please download and extract the files.
* Make a copy and use them for practising.

|-
|| Open the '''MathExample1.odt '''
|| Let us first open the '''MathExample1.odt file'''.
|-
|| Double click on the '''Gray''' box.

'''Math Formula Editor ''' and the '''Elements''' window opens up.
|| Double click the '''Gray '''box in the Writer window.

This brings up the ''' Math ''' interface.
|-
||Only narration
|| Let us learn how to write '''Greek''' characters using '''Math'''.

'''Greek''' characters like '''alpha''', '''beta''' and others are common in mathematical '''formulae'''.
|-
|| Point towards the '''Elements ''' window.

Click and show the '''Element Categories''' drop down.

In the Formula Editor Window (FEW in short) type: '''%pi newline'''
|| We don’t find these '''characters ''' in the '''Elements ''' window.

To write them, we use a '''percentage '''sign, followed by the name in '''English'''.

For example, to write '''pi''', we type '''%pi''' in the '''Formula Editor'''.

|-
|| In FEW, press Enter, type '''%alpha newline `%beta newline'''
|| To write '''lowercase characters''', type the name of the characters in '''lowercase'''.

To write alpha in lower case, type '''%alpha''' and to write '''beta''' type '''%beta'''.
|-
|| In FEW, press '''Enter''', type '''%GAMMA '''.

'''%THETA newline'''.
|| To write '''uppercase characters''', type the name of the '''characters '''in '''uppercase'''.

To write '''gamma''' in upper case, type '''%GAMMA''' and to write '''theta '''type '''%THETA'''.
|-
|| Click on '''Tools''' menu on top, click '''Symbols'''.
|| There is yet another way to enter '''Greek ''' characters.

Click on the '''Tools''' menu and select the '''Symbols ''' option.
|-
|| Point to the '''Symbols''' dialog box.

Select '''Greek ''' under '''Symbols'''.

|| '''Symbols''' dialog box, appears.

Under the '''Symbol ''' set, select '''Greek ''' if not already selected.
|-
|| Click on the '''Greek ''' letter alpha from the list.

Point towards the name of the letter.

Point to the '''Preview'''.
|| Click on '''Greek ''' letter ''' alpha''' in the box.

The name of the selected letter is shown below the box.

Its '''preview''' is shown on the right.
|-
|| Click on the '''Insert''' button in the '''Symbols''' dialog box to insert the symbol.

Click on the '''Greek ''' letter from the box.

Click on the '''Insert ''' button in the '''Symbols''' dialog box to insert the symbol.
|| Now click the ''' Insert''' button in the '''Symbols''' dialog box to insert the symbol.

Similarly insert other '''Greek''' letters given in the box.

|-
||Click on the '''Close''' button.
||Let’s close the '''Symbols ''' dialog box, by clicking on the '''Close ''' button.
|-
|| Point to the '''markup''' for the '''Greek''' letters in the '''Formula editor'''.
|| Notice that the '''markup''' for the '''Greek''' letters is shown in the '''Formula editor'''.
|-
|| Point towards '''symbols '''icon
|| We can also insert '''Greek ''' letters using the '''Symbols ''' icon on the '''Standard ''' toolbar.
|-
|| Click '''Save ''' on the '''standard toolbar'''.
||Let us save the file now.
|-
|| '''Slide''':

'''Assignment'''
|| Pause the video and do this assignment.

Open the '''Math-assignment.odt ''' file.

Write the '''markup''' for this formula:

'''pi is similar or equal to 3.1415'''.

Using the '''Symbols ''' dialog box insert various ''' Greek ''' and special characters.
|-
|| Click Anywhere in the '''Writer ''' area.

Press '''Ctrl + Enter''' on the keyboard.
|| Let us now write the steps to solve a '''quadratic ''' equation.

We will go to a new page in the '''Writer ''' document.

Click anywhere in the '''Writer ''' area and press '''Ctrl ''' and ''' Enter ''' keys on the keyboard.
|-
|| Type: '''Solving a Quadratic Equation''' and press '''Enter''' twice.

Type the equation''' 2x<sup>2</sup> - 7x+3=0'''

Show the text editor with the equations.
|| Let us type: '''Solving a Quadratic Equation''':.

Here is the quadratic equation that we will solve, '''2''' '''x squared - 7 x + 3 = 0'''.

I have already typed the required expressions in a text editor.

I will copy and paste them to save time.
|-
|| Click '''Insert ''' >> Select '''Object '''

>> Submenu >> Select '''Formula'''.

|| We will now call '''Math application'''.

Click on '''Insert menu''' and select '''Object'''.

From the submenu select '''Formula''' option.

|-
||Point to the equation.
||Let’s write the markup for the '''quadratic ''' equation that we want to solve.
|-
|| Click on''' Format''' menu >> Select '''Font Size'''.

In the '''Font sizes '''dialog box >>

Change the '''Base size''' to 16 pt >> click '''OK''' button.
|| Let us change the''' font size''' to 16 point.

|-
|| Click on Format menu >> Select '''Alignment'''.

Under '''Horizontal''' click '''Centered''' option.

Click '''OK''' button
||Let us change the '''alignment''' to '''Centered'''.
|-
|| In FEW, type:

'''2x ^ 2 - 7 x + 3 = 0 '''

Type: '''newline '''.

|| In the '''Format Editor''', type the markup as follows: 2 '''x squared minus 7 x plus 3 = 0'''.

|-
|| Press Enter and type:

'''Quadratic Formula: newline'''

Press '''Enter'''.
|| Press '''Enter''' and type '''Quadratic Formula''':.

|-
||Only narration
|| It is a good practice to break down a complex formula into simple elements.

Let’s start with the innermost elements of the formula.
|-
|| '''Type:'''

'''sqrt{b^2 – 4ac} newline newline'''.
|| First we will write the innermost square root function.

The markup for that is '''square root of b squared - 4ac''' in '''curly brackets'''.
|-
|| Type''' { -b +-''' before the above equation and''' }''' at the end.
|| Next, let us add '''minus b plus or minus''' to the expression.

Then put the expression within curly brackets.
|-
|| Type''' {''' before the above equation, and '''}''' at the end.

Type at the end: '''over{ 2a}'''.

Type '''x = ''' at the beginning of line.

|| Let us add another set of curly brackets to make the expression a numerator.

Add ''' over''' and ''' 2a''' within ''' curly brackets ''' to the expression.

Finally add '''x equal to''' at the beginning of the line.
|-
|| Type ~ before and after = sign.

~ = ~

Point mouse over FEW,

'''~ '''symbol next to '''‘x’'''.
|| Add blank spaces''' '''surrounding the '''equal to''' sign.
|-
|| In FEW, type:

'''newline newline Where ‘a’ is` the` coefficient` of` the` x^2 term''',

''' ~b `is `the ` coefficient` of` the` x` term''',

'''` c~ is `a` constant` newline newline'''

Point to the '''back quotes'''.
|| Next let us type the rest of the text as follows in the '''Formula Editor'''.

'''Where ‘a’ is the coefficient of the x squared term'''.

'''‘b’ is the coefficient of the x term'''.

'''‘c’ is a constant ''' followed by a newline.

Here I have added '''back quotes''' to create a small gap between the words for clarity.
|-
|| '''We` can` solve` the equation` by` substituting` 2 `for `a,` -7` for` b,` 3` for` c newline newline'''.
|| Now type the following line.

This line shows the substitution of values in the expression.

|-
|| Press E'''nter '''twice and type

'''x~=~ {{ -(-7)+-sqrt{(-7)^2 - 4(2)(3)}}} over {2(2)} newline newline'''

Point to the ''' parentheses'''.

|| The '''markup '''after the substituting the values is as shown.

Here we have substituted the numbers using '''parentheses ''' in the equation.
|-
||POin to the '''quadratic''' equation.
||Now let’s solve the '''quadratic''' equation to get the values of x.
|-
||
'''x~=~ {{7+-sqrt{(49- 24)}}} over4 newline newline'''

'''x~=~ {{7+-sqrt{(25)}}} over 4 newline newline'''

'''x~=~ {{7+-5}} over 4 newline newline'''

'''x~=~ {{7+5}} over 4, ~ ~ x~=~ {{ 7-5}} over 4 newline newline'''

'''x~=~ {{12}} over 4, ~ ~ x~=~ {{ 2}} over 4 newline newline'''

|| Type the following lines to show the values of '''x'''.

In these lines I have completed the calculation to show the values of '''x'''.
|-
||'''x~=~ 3, ~ ~ x~=~ 0.5 newline newline'''
||Here are the values of '''x'''.
|-
||'''Ctrl + S'''
||Let us save the changes.
|-
||Narration only:
|| With this we have come to the end of this tutorial.

Let us summarize.
|-
|| '''Slide''': '''Summary'''
|| In this tutorial, we have learnt to:
* Insert '''Greek '''characters.
* Write steps''' '''to solve a '''quadratic''' equation.

|-
|| '''Slide''': Assignment

'''3x<sup>2</sup> -5x +2<nowiki>=0</nowiki>'''

Highlight the equation.
|| Here is an '''assignment '''for you:

Open '''Math-assignment.odt '''file.
* Write steps to solve this quadratic equation
* Format the steps by changing the alignment and spacing.
* Add blank spaces and newlines''' '''as required.

|-
|| '''Slide''':

'''About Spoken Tutorial Project'''
||
* The video at the following link summarises the Spoken Tutorial project
* Please download and watch it

|-
|| '''Slide''':

''' Spoken tutorial workshops'''

||
* We conduct workshops using '''spoken''' '''tutorials''' and give certificates
* For more details, please contact us.

|-
|| '''Slide''':

'''Answers for THIS Spoken Tutorial'''
||Please post your Timed queries in this forum.
|-
|| '''Slide''':

'''Acknowledgement'''
|| The ''' Spoken Tutorial''' project is funded by the '''Ministry of Education''', Govt. of India.
|-
|| '''Slide''':

'''Thank you'''

'''Acknowledgement to DesiCrew'''
|| This tutorial was originally contributed by DesiCrew Solutions Pvt. Ltd. in 2011

This is Madhuri Ganapathi along with the Spoken Tutorial team from '''IIT Bombay'''.

Thank you for watching.
|-
|}

@@ Line 238: / Line 238: @@
-|| In the '''Format editor''', type the '''markup''' as follows: 2 '''x squared minus 7 x plus 3 = 0'''.
+|| In the '''Formula editor''', type the '''markup''' as follows: 2 '''x squared minus 7 x plus 3 = 0'''.
@@ Line 252: / Line 252: @@
 |-
 ||Only narration
-|| It is a good practice to break down a complex formula into simple elements.
+|| It is a good practice to break a complex formula into simple elements.
@@ Line 316: / Line 316: @@
-Here I have added '''back quotes''' to create a small gap between the words for clarity.
+I have added '''back quotes''' to create a small gap between the words for clarity.
 |-
 || '''We` can` solve` the '''equation'''` by` substituting` 2 `for `a,` -7` for` b,` 3` for` c newline newline'''.

@@ Line 369: / Line 369: @@
 |-
 ||Narration only:
-|| With this, we have come to the end of this tutorial.
+|| With this, we come to the end of this tutorial.

@@ Line 1: / Line 1: @@
 Title: Greek characters and Quadratic Equations.
-Keywords:  Libreoffice math,  libreoffice writer, greek characters, percentage sign,  markup, font size, alignment, quadratic equation, spoken, tutorial, video tutorial.
+Keywords:  Libreoffice math,  libreoffice writer, greek characters, percentage sign,  markup, font size, alignment, quadratic equation, spoken tutorial, video tutorial.
 {| border=1
@@ Line 185: / Line 185: @@
 Show the text editor with the equations.
-Added the Quadratic-Equation.txt in Code Files for copying-pasting the equations.
+Added the '''Quadratic-Equation.txt''' in '''Code Files''' for copying-pasting the equations.
 || Let us type: '''Solving a Quadratic Equation''':.

@@ Line 1: / Line 1: @@
 Title: Greek characters and Quadratic Equations.
-Keywords:  Libreoffice math,  libreoffice writer, greek characters, percentage sign,  markup, font size, alignment, quadratic equation, video tutorial.
+Keywords:  Libreoffice math,  libreoffice writer, greek characters, percentage sign,  markup, font size, alignment, quadratic equation, spoken, tutorial, video tutorial.
 {| border=1
@@ Line 8: / Line 8: @@
 |-
 || '''Slide''':Title
-|| Welcome to the '''Spoken tutorial''' on '''Greek Characters and Quadratic Equations'''.
+||Welcome to the '''Spoken tutorial''' on '''Greek Characters and Quadratic Equations'''.
 |-
 || '''Slide''':
@@ Line 15: / Line 15: @@
 || In this tutorial, we will learn to:
-* Insert '''Greek '''characters.
+* Insert '''Greek ''' characters.
-* Write steps''' '''to solve a '''quadratic equation'''.
+* Write steps to solve a '''quadratic equation'''.
 |-
@@ Line 27: / Line 27: @@
 * '''Ubuntu Linux OS''' version 18.04 and
-* '''LibreOffice Suite''' version 6.3.5
+* '''LibreOffice Suite''' version 6.3.5.
 |-
@@ Line 45: / Line 45: @@
 '''Code Files'''
 ||
-* The files used in this tutorial are provided in the ''' Code files''' link.
+* The files used in this tutorial are provided in the '''Code files''' link.
 * Please download and extract the files.
 * Make a copy and use them for practising.
@@ Line 74: / Line 74: @@
 In the '''Formula editor''' window (FEW in short) type: '''%pi newline'''
-|| We don’t find these '''characters ''' in the '''Elements ''' window.
+|| We don’t find these '''characters ''' in the '''Elements''' window.
@@ Line 96: / Line 96: @@
-To write '''gamma''' in uppercase, type '''%GAMMA''' and to write '''theta '''type '''%THETA'''.
+To write '''gamma''' in uppercase, type '''%GAMMA''' and to write ''' theta ''' type '''%THETA'''.
 |-
 || Click on '''Tools''' menu on top, click '''Symbols'''.
@@ Line 128: / Line 128: @@
 |-
 || Click on the '''Insert''' button in the '''Symbols''' dialog box to insert the symbol.
@@ Line 147: / Line 146: @@
 |-
 || Point towards '''symbols '''icon
 || We can also insert '''Greek ''' letters using the '''Symbols ''' icon on the '''Standard  toolbar'''.
 |-
@@ Line 157: / Line 158: @@
 || Pause the video and do this assignment.
-*Open the '''Math-assignment.odt ''' file.
+* Open the '''Math-assignment.odt ''' file.
-*Write the '''markup''' for this formula:
+* Write the '''markup''' for this formula:
-:'''pi is similar or equal to 3.1415'''.
+'''pi is similar or equal to 3.1415'''.
-*Using the '''Symbols ''' dialog box insert various ''' Greek ''' and special characters.
+* Using the '''Symbols ''' dialog box insert various ''' Greek ''' and special characters.
 |-
 || Click anywhere in the '''Writer ''' area.
@@ Line 183: / Line 184: @@
 Show the text editor with the equations.
 || Let us type: '''Solving a Quadratic Equation''':.
@@ Line 333: / Line 336: @@
-Here we have substituted the numbers using '''parentheses ''' in the '''equation'''.
+Here we have substituted the numbers using '''parentheses''' in the '''equation'''.
 |-
 ||Point to the '''quadratic''' equation.
@@ Line 425: / Line 428: @@
 '''Acknowledgement to DesiCrew'''
-|| This tutorial was originally contributed by DesiCrew Solutions Pvt. Ltd. in 2011
+|| This tutorial was originally contributed by DesiCrew Solutions Pvt. Ltd. in 2011.
 This is Madhuri Ganapathi along with the Spoken Tutorial team from '''IIT Bombay'''.

@@ Line 347: / Line 347: @@
 |-
 ||
-''' <math> x~=~ {{7+-sqrt{(49- 24)}}} over 4</math> newline newline'''
+'''<nowiki>x~=~ {{7+-sqrt{(49- 24)}}} over 4 newline newline</nowiki>'''
-'''<math> x~=~ {{7+-sqrt{(25)}}} over 4 </math>newline newline'''
+'''<nowiki>x~=~ {{7+-sqrt{(25)}}} over 4 newline newline</nowiki>'''
-'''<math> x~=~ {{7+-5}} over 4 </math>newline newline'''
+'''<nowiki>x~=~ {{7+5}} over 4 newline newline</nowiki>'''
-''' <math> x~=~ {{7+5}} over 4, ~ ~ x~=~ {{7-5}} over 4  </math> newline newline'''
+'''<nowiki>x~=~ {{7+5}} over 4, ~ ~ x~=~ {{7-5}} over 4 newline newline</nowiki>'''
-'''<math> x~=~ {{12}} over 4, ~ ~ x~=~ {{2}} over 4  </math>newline newline'''
+'''<nowiki>x~=~ {{12}} over 4, ~ ~ x~=~ {{2}} over 4 newline newline</nowiki>'''

@@ Line 343: / Line 343: @@
 Here we have substituted the numbers using '''parentheses ''' in the equation.
 |-
-||POin to the '''quadratic''' equation.
+||Point to the '''quadratic''' equation.
 ||Now let’s solve the '''quadratic''' equation to get the values of x.
 |-