Difference between revisions of "LibreOffice-Suite-Math-6.3/C2/Greek-characters-and-Quadratic-equations/English"
Nancyvarkey (Talk | contribs) |
|||
Line 343: | Line 343: | ||
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. |
||Now let’s solve the '''quadratic''' equation to get the values of x. | ||Now let’s solve the '''quadratic''' equation to get the values of x. | ||
|- | |- |
Revision as of 14:47, 1 June 2022
Title: Greek characters and Quadratic Equations.
Keywords: Libreoffice math, libreoffice writer, greek characters, percentage sign, markup, font size, alignment, quadratic equation, video tutorial.
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:
|
Slide:
System Requirements
|
This tutorial is recorded using,
|
Slide:
Prerequisites |
To follow this tutorial, learner should be familiar with Math interface.
|
Slide:
Code Files |
|
Open the MathExample1.odt | Let us first open the MathExample1.odt file. |
Double click on the Gray box.
|
Double click the Gray box in the Writer window.
|
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.
|
We don’t find these characters in the Elements window.
|
In FEW, press Enter, type %alpha newline `%beta newline | To write lowercase characters, type the name of the characters in lowercase.
|
In FEW, press Enter, type %GAMMA .
%THETA newline. |
To write uppercase characters, type the name of the characters in uppercase.
|
Click on Tools menu on top, click Symbols. | There is yet another way to enter Greek characters.
|
Point to the Symbols dialog box.
Select Greek under Symbols.
|
Symbols dialog box, appears.
|
Click on the Greek letter alpha from the list.
Point towards the name of the letter.
|
Click on Greek letter alpha in the box.
The name of the selected letter is shown below 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.
Write the markup for this formula: pi is similar or equal to 3.1415.
|
Click Anywhere in the Writer area.
|
Let us now write the steps to solve a quadratic equation.
|
Type: Solving a Quadratic Equation and press Enter twice.
Show the text editor with the equations. |
Let us type: Solving a Quadratic Equation:.
|
Click Insert >> Select Object
>> Submenu >> Select Formula.
|
We will now call Math application.
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
|
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.
|
Type:
sqrt{b^2 – 4ac} newline newline. |
First we will write the innermost square root function.
|
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.
|
Let us add another set of curly brackets to make the expression a numerator.
|
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
|
Next let us type the rest of the text as follows in the Formula Editor.
‘b’ is the coefficient of the x term. ‘c’ is a constant followed by a newline.
|
We` can` solve` the equation` by` substituting` 2 `for `a,` -7` for` b,` 3` for` c newline newline. | Now type the following line.
|
Press Enter twice and type
x~=~ {{ -(-7)+-sqrt{(-7)^2 - 4(2)(3)}}} over {2(2)} newline newline
|
The markup after the substituting the values is as shown.
|
Point to the quadratic equation. | Now let’s solve the quadratic equation to get the values of x. |
x~=~ {{7+-sqrt{(49- 24)}}} over 4 newline newline
|
Type the following lines 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.
|
Slide: Summary | In this tutorial, we have learnt to:
|
Slide: Assignment
|
Here is an assignment for you:
|
Slide:
About Spoken Tutorial Project |
|
Slide:
Spoken tutorial workshops |
|
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. |