Difference between revisions of "LibreOffice-Suite-Math/C3/Set-Operations-Factorials-Cross-reference-equations/English-timed"

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{| border=1
 
{| border=1
−
!Visual Cues
+
|'''Time'''
−
!Narration
+
|'''Narration'''
 +
 
 
|-
 
|-
−
|Show Slide Number 1
+
|00:00
 +
|Welcome to the '''Spoken tutorial''' on '''LibreOffice Math'''.
  
−
Spoken tutorial on LibreOffice Math
+
|-
 +
|00:04
 +
|In this tutorial, we will learn how to:
  
−
Learning Objectives
+
|-
 +
|00:07
 +
|Write '''Set operations'''
  
−
*Write Set operations
+
|-
 +
|00:10
 +
|Write '''Factorial'''s and
  
−
*Write Factorials
+
|-
 +
|00:12
 +
|'''Cross reference''' equations by numbering.
  
−
*Cross reference equations by numbering
+
|-
−
|Welcome to the Spoken tutorial on LibreOffice Math.
+
|00:16
 +
|For this, let us first open our example 'Writer' document that we created in our previous tutorials "MathExample1.odt".
  
−
In this tutorial, we will learn how to
+
|-
 +
|00:29
 +
|Here, let us go to the end of the document and press '''Control, Enter''' to go to a new page.
  
−
Write Set operations
+
|-
 +
|00:37
 +
|And type “Set Operations: ” and press  '''Enter''' twice.
  
−
Write Factorials and
+
|-
 +
|00:42
 +
|Now, let us call '''Math'''.
  
−
Cross reference equations by numbering
 
 
|-
 
|-
−
|Open the MathExample1.odt (created in part 2)
+
|00:45
−
|For this, let us first open our example Writer document that we created in our previous tutorials: MathExample1.odt.
+
|Before we go ahead, let us increase the Font-size to '''18 point'''.
 +
 
 
|-
 
|-
−
|Scroll to last page, go to the end.
+
|00:51
 +
|Change the '''Alignment''' to the '''Left'''.
  
−
Press Control  - Enter to go to a new page
+
|-
 +
|00:54
 +
|Let us now learn how to write '''Set operations'''.
  
−
Type “Set Operations: ” in Writer on this fresh page. Press enter twice.
+
|-
 +
|01:00
 +
|'''Math''' has separate '''mark up''' to represent '''Set'''s which are collections of distinct '''element'''s.
  
−
Click Insert > Object > Formula
+
|-
−
|Here let us go to the end of the document and press Control Enter to go to a new page.
+
|01:07
 +
|Let us write four (4) example '''set'''s, in the '''Formula Editor''' window, as shown on the screen:
  
−
And type “Set Operations: ” and press the Enter key twice.
+
|-
 +
|01:14
 +
|'''Set A''' with 5 elements,
  
−
Now let us call Math.
 
 
|-
 
|-
−
|Click Format menu > Font size. Increase size to 18 pt.
+
|01:18
 +
| Set B,Set C,
  
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Click Format menu > Alignment, choose left option
+
|-
 +
|01:21
 +
|and Set D with elements each.
  
−
All pink coloured text goes into Formula Editor Window (FEW in short)
+
|-
 +
|01:26
 +
|Notice that to write the brackets for sets, we can use the '''mark up: lbrace''' and '''rbrace'''.
  
−
In FEW, copy and paste:
+
|-
 +
|01:35
 +
|Now, we can write '''set operation'''s such as '''union'''s and '''intersection'''s.
  
−
A ~=~ lbrace 1, 2, 3, 4, 5 rbrace newline
+
|-
 +
|01:42
 +
|First, let us write a '''union operation'''.
  
−
B ~=~ lbrace 1, 2 rbrace newline
+
|-
 +
|01:46
 +
|The mark-up for '''B union C''' is the same as we read it;
  
−
C ~=~ lbrace 4, 5 rbrace newline
+
|-
 +
|01:51
 +
|and the resulting set is 1, 2, 6, 4 and 5 which includes all the distinct elements in both sets.
  
−
D ~=~ lbrace 6, 7 rbrace newline newline
+
|-
−
|Before we go ahead, let us increase the font size to 18 point.
+
|02:04
 +
|The markup for an '''intersection operation''' is again the same as we read it.
  
−
Change the alignment to the left.
+
|-
 +
|02:10
 +
|The '''intersection''' includes only the common elements from both the sets.
  
−
Let us now learn how to write Set operations.
+
|-
 +
|02:16
 +
|So, the result of '''B intersection D''' is 6.
  
−
Math has separate mark up to represent Sets, which are collections of distinct elements.
+
|-
 +
|02:23
 +
|And we can also write: '''set C''' is a '''subset''' of '''set A''', as every element in 'C' is in '''set A'''.
  
−
Let us write 4 example sets in the Formula Editor window as shown on the screen:
+
|-
 +
|02:35
 +
|The '''mark up''' for this is '''C subset A'''.
  
−
Set A with 5 elements
+
|-
 +
|02:42
 +
|You can learn to write more set operations by exploring the '''Elements''' window, by clicking on the third icon there.
  
−
Set B
+
|-
 +
|02:51
 +
|Go to '''View > Elements > Set Operations'''.
  
−
Set C
+
|-
 +
|02:59
 +
|Let us '''save''' our work now.
  
−
And Set D equal to 6, and 7, with 2 elements each.
 
 
|-
 
|-
−
|Point mouse over the four sets in Writer gray box
+
|03:02
 +
|Click on '''File > Save'''.
  
−
In FEW, point mouse over above mark up.
+
|-
 +
|03:06
 +
|Now, let us write '''Factorial function'''s.  
  
−
In FEW, press enter twice, copy and paste:
+
|-
 +
|03:11
 +
|We will designate numbers 1 to 3 for the three formulae we are going to write shortly.
  
−
B union C ~=~ lbrace 1, 2, 6, 4, 5 rbrace  newline newline
+
|-
 +
|03:19
 +
|These will help to '''cross reference''' them anywhere within the '''Writer''' document.
  
−
In FEW, point mouse over ‘Union’ word
+
|-
 +
|03:25
 +
|Let us go to a new page by clicking three times slowly, outside the '''Writer gray box'''.
  
−
Point mouse over the last formula in Writer gray box
+
|-
 +
|03:33
 +
|Press '''Control, Enter'''.
  
−
In FEW, press enter twice, copy and paste:
+
|-
 +
|03:36
 +
|Type: “Factorial Function: ” and press '''Enter''' twice.
  
−
B intersection D ~=~ lbrace 6  rbrace  newline newline
+
|-
 +
|03:42
 +
|Now, we know how to call '''Math'''.
  
−
Point mouse over the last formula in Writer gray box
+
|-
 +
|03:45
 +
|But, there is another way to bring up the '''Math object''' into the '''Writer'''.
  
−
In FEW, press enter twice, copy and paste:
+
|-
 +
|03:51
 +
|For this, simply write ‘f n’ on the '''Writer document''' and press '''F3'''.
  
−
C subset A newline newline
+
|-
 +
|03:59
 +
|We are now seeing a new '''Math object''' that says '''E is equal to m c squared'''
  
−
Point mouse over the subset symbol in the last formula in Writer gray box
+
|-
 +
|04:07
 +
|and along with that the number one (1), within parentheses, on the right.
  
−
In FEW, point mouse over the last line.
+
|-
 +
|04:14
 +
|Meaning- we can '''cross reference''' this formula with the number 1, anywhere in this document.  
  
−
If elements window not visible, click View >Elements.
+
|-
 +
|04:22
 +
|We will learn the details of how to do this later.
  
−
In the Elements window, click the third icon in the Elements window and slowly mouse over on the elements, to show tool tips.
+
|-
 +
|04:27
 +
|For now, let us double-click on the '''Math object'''.  
  
−
Click  File > Save.
+
|-
−
|Notice that to write the brackets for sets, we can use the mark up: lbrace and rbrace.
+
|04:32
 +
|And do the formatting. '''Font size 18''' and ''''Left' Alignment'''.
  
−
Now we can write set operations such as unions and intersections.
+
|-
 +
|04:40
 +
|Okay, let us now write an example for '''Factorial'''.  
  
−
First let us write a union operation.  
+
|-
 +
|04:44
 +
|The '''mark up''' ‘fact’ represents the '''factorial''' symbol.
  
−
The mark up for B union C is the same as we read it;
+
|-
 +
|04:50
 +
|So, let us overwrite the existing formula with ours:
  
−
and the resulting set is 1, 2, 6, 4, and 5, which includes all the distinct elements in both the sets.
+
|-
 +
|04:55
 +
|'''5 Factorial = 5 into 4 into 3 into 2 into 1 = 120'''.
  
−
The markup for an intersection operation is again the same as we read it.
+
|-
 +
|05:07
 +
|Notice the '''mark up''' here.
  
−
The intersection includes only the common elements from both the sets.
+
|-
 +
|05:09
 +
|Let us write our next formula in a new '''Math object''' here.
  
−
So the result of B intersection D is 6.
+
|-
 +
|05:14
 +
|For this, let us first click outside this '''Writer gray box''' three times slowly.
  
−
And we can also write: set C is a subset of set A, as every element in C is in set A.
+
|-
 +
|05:23
 +
|Press the down-arrow key two or three times to go to the end of this page.
  
−
The mark up for this is C subset A.
+
|-
 +
|05:30
 +
|And type ‘f n’ and press '''F3''' to bring up the second '''Math object'''.
  
−
You can learn to write more set operations, by exploring the Elements window by clicking on the third icon there.
+
|-
 +
|05:37
 +
|Again, we will repeat the formatting
  
−
Go to View> Elements> Set Operations.
+
|-
 +
|05:46
 +
|and overwrite the existing formula with the '''factorial''' definition:
  
−
Let us save our work now.  
+
|-
 +
|05:52
 +
|'''n factorial is equal to prod from k = 1 to n of k'''.
  
−
Click on File>Save.
 
 
|-
 
|-
−
|Click three times slowly outside right of Writer gray box. Now then click again.
+
|06:01
 +
|Notice the mark-up ‘prod’ which denotes product, similar to '''sigma''' for summation.
  
−
Press Control  -Enter
+
|-
−
 
+
|06:10
−
Type: “Factorial Function: ” and press enter twice
+
|Now, let us introduce a third Math object just like the first two
−
 
+
−
Type fn and press F3
+
−
 
+
−
Point mouse over E = mc squared in Writer gray box
+
−
 
+
−
Point mouse over (1) on the right in Writer gray box
+
−
 
+
−
Double click on E = mc squared in Writer gray box
+
−
 
+
−
Click Format menu > Font size. Increase size to 18 pt.
+
−
 
+
−
Click Format menu > Alignment, chooses left option
+
−
|Now let us write Factorial functions.
+
−
 
+
−
We will designate numbers 1 to 3 for the three formulae we are going to write shortly.
+
−
 
+
−
These will help to cross reference them anywhere within the Writer document.
+
−
 
+
−
Let us go to a new page by clicking three times slowly outside the Writer gray box.
+
−
 
+
−
Press Control  -Enter.
+
−
 
+
−
Type “Factorial Function: ” and press enter twice.
+
−
 
+
−
Now, we know how to call Math.
+
−
 
+
−
But there is another way to bring up the Math object into the Writer.
+
−
 
+
−
For this simply write ‘f n’ on the Writer document and press F3.
+
−
 
+
−
We are now seeing a new Math object that says E is equal to m c squared;
+
−
 
+
−
and along with that, the number one within parentheses, on the right.
+
−
 
+
−
Meaning, we can cross reference this formula with the number 1 anywhere in this document; we will learn the details of how to do this later.
+
−
 
+
−
For now, let us double click on the Math object
+
  
−
And do the formatting. Font size 18 and Left Alignment.
 
 
|-
 
|-
−
|In FEW, overwrite existing formula. So press Control + A to select all, then copy and paste:
+
|06:20
 +
|and rewrite the factorial definition as two conditional formulae, as shown on the screen.
  
−
fact 5 = 5 times 4 times 3 times 2 times 1  = 120
 
−
 
−
In FEW, point mouse over ‘fact’ word in the last line
 
−
 
−
Click outside this Writer gray box three times slowly
 
−
 
−
Press the down arrow key two or three times to go to the end of this page.
 
−
 
−
Type ‘fn’ and press F3
 
−
 
−
Double click on E = mc squared in Writer gray box
 
−
 
−
Click Format menu > Font size. Increase size to 18 pt.
 
−
 
−
Click Format menu > Alignment, chooses left option
 
−
 
−
In FEW, overwrite existing formula. So press Control  - A to select all, then copy and paste:
 
−
 
−
fact n ~=~ prod from k = 1 to n k newline
 
−
 
−
In FEW, point mouse over ‘prod’ word in the last line
 
−
 
−
Click outside this second Writer gray box three times slowly
 
−
 
−
Press the down arrow key two or three times to go to the end of this page.
 
−
 
−
Type ‘fn’ and press F3
 
−
 
−
Double click on E = mc squared in Writer gray box
 
−
 
−
Click Format menu > Font size. Increase size to 18 pt.
 
−
 
−
Click Format menu > Alignment, chooses left option
 
−
 
−
In FEW, overwrite existing formula.
 
−
 
−
So press Control + A to select all, then copy and paste:
 
−
 
−
fact n ~=~ left lbrace binom{1 ~ "if n = 0"}{fact(n-1) `times` n ~ " if n > 0 "} right none newline newline
 
−
 
−
Point mouse over this formula in  Writer gray box
 
−
 
−
In FEW, point mouse over ‘binom’ word in the last line
 
−
|Okay, let us now write an example for Factorial.
 
−
 
−
The mark up ‘fact’ represents the factorial symbol.
 
−
 
−
So let us overwrite the existing formula with ours:
 
−
 
−
5 Factorial = 5 into 4 into 3 into 2 into 1 = 120.
 
−
 
−
Notice the mark up here.
 
−
 
−
Let us write our next formula in a new Math object here.
 
−
 
−
For this, let us first click outside this Writer gray box three times slowly.
 
−
 
−
Press the down arrow key two or three times to go to the end of this page.
 
−
 
−
And type ‘f n’ and press F3 to bring up the second Math object.
 
−
 
−
Again, we will repeat the formatting
 
−
 
−
and overwrite the existing formula with the factorial definition:
 
−
 
−
N factorial is equal to prod from k = 1 to n of k.
 
−
 
−
Notice the mark up ‘prod’ which denotes product, similar to sigma for summation.
 
−
 
−
Now, let us introduce a third Math object just like the first two
 
−
 
−
and rewrite the factorial definition as two conditional formulae as shown on the screen.
 
−
 
−
Notice the mark up ‘binom’, which displays a vertical stack of two elements and helps with better alignment.
 
 
|-
 
|-
−
|Click three times outside Writer gray box, press Control + Enter
+
|06:30
−
 
+
|Notice the '''mark up''' ‘binom’ which displays a vertical stack of two elements and helps with better alignment.
−
Type: An example of factorial is provided here:
+
−
 
+
−
Click Insert menu > Cross reference
+
−
 
+
−
In the popup, click on Text in the Type list
+
  
−
Click on first item in the Selection list on the right
+
|-
−
 
+
|06:42
−
Click Reference in the ‘Insert reference to’ list , click on Insert once and click on close
+
−
 
+
−
Point mouse over (1).
+
−
 
+
−
Click on (1).
+
−
 
+
−
Point mouse over the formula numbered 1.
+
−
 
+
−
Click File > Save
+
 
|Let us now see how we can cross reference these formulae.
 
|Let us now see how we can cross reference these formulae.
  
−
For this, let us go to a new page
+
|-
 +
|06:47
 +
|For this, let us go to a new page
  
−
and type: An example of factorial is provided here:
+
|-
 +
|06:51
 +
|and type: "An example of factorial is provided here:"
  
−
Now let us click on the Insert menu, and on Cross reference.  
+
|-
 +
|06:59
 +
|Now, let us click on the '''Insert''' menu and on '''Cross reference'''.  
  
−
In the new popup, let us select “Text” in the Type list.
+
|-
 +
|07:06
 +
|In the new pop-up, let us select '''Text''' in the '''Type''' list.
  
−
Then choose the first item in the Selection list denoting the first factorial formula we wrote.
+
|-
 +
|07:12
 +
|Then choose the first item in the '''Selection''' list denoting the first factorial formula we wrote.
  
−
Now choose Reference in the ‘Insert reference to’ list and click on Insert once and close.
+
|-
 +
|07:21
 +
|Now choose '''Reference''' in the '''‘Insert reference to’''' list and click on '''Insert''' once and close.
  
−
So the number one in parentheses has appeared next to our text. And we are done.
+
|-
 +
|07:31
 +
|So, the number one (1) in parentheses has appeared next to our text. And we are done.
  
−
Let us test it by simply clicking on this number;
+
|-
 +
|07:39
 +
|Let us test it by simply clicking on this number
  
−
And notice that the cursor has jumped to the location where we wrote the first formula.
+
|-
−
 
+
|07:43
−
So this is how we can cross reference Math formulae anywhere within the Writer document.
+
|and notice that the cursor has jumped to the location where we wrote the first formula.
  
−
Let us save our work.
 
 
|-
 
|-
−
|Show Slide Number 2
+
|07:51
 +
|So, this is how we can '''cross reference''' Math formulae anywhere within the '''Writer document'''.
  
−
References for Math:
+
|-
−
 
+
|07:58
−
Guide:
+
|Let us '''save''' our work.
  
−
http://www.libreoffice.org/get-help/documentation/
+
|-
−
 
+
|08:01
−
http://help.libreoffice.org/Math/Welcome_to_the_Math_Help
+
 
|Here are some reference links for Math:
 
|Here are some reference links for Math:
  
−
Download guides at libreoffice.org documentation link.
+
|-
 +
|08:06
 +
|Download '''Guide''' at 'libreoffice.org documentation' link.
  
−
You can also visit help.libreoffice.org/Math for more information on Math
 
 
|-
 
|-
−
|Show Slide Number 3
+
|08:14
 +
|You can also visit the following website for more information on Math.
  
−
Math mark up assignment:
+
|-
−
 
+
|08:20
−
1. Using the example Sets in this tutorial: check if A union ( B union C) is equal to (A union B) union C
+
−
 
+
−
2. Write the results of  subtraction of set B from set A
+
−
 
+
−
3. Cross reference the second and third factorial formulae in the example document in the Writer document
+
 
|And finally, here is an assignment for you. Use the Writer document.
 
|And finally, here is an assignment for you. Use the Writer document.
  
−
1. Using the example Sets in this tutorial: check if A union ( B union C) is equal to (A union B) union C
+
|-
 +
|08:25
 +
|Using the example '''Set'''s in this tutorial: check if '''A union ( B union C) is equal to (A union B) union C'''.
  
−
2. Write the results of A minus B
+
|-
 +
|08:40
 +
|Write the results of '''A minus B'''
  
−
3. And cross reference the second and third factorial formulae in the Writer document
 
 
|-
 
|-
−
|Show Slide Number 3
+
|08:43
 +
|and cross reference the second and third '''factorial''' formulae in the Writer document.
  
−
Summary:
+
|-
 +
|08:51
 +
|This brings us to the end of this tutorial on '''Sets, Factorials''' and '''Cross Referencing''' in '''LibreOffice Math'''.
  
−
*Write Set operations
+
|-
 +
|08:59
 +
|To summarize, we learned how to:
  
−
*Write Factorials and
+
|-
 +
|09:03
 +
|Write '''Set''' operations
  
−
*Cross reference equations by numbering
+
|-
−
|This brings us to the end of this tutorial on Sets, Factorials and Cross Referencing in LibreOffice Math.
+
|09:05
 +
|Write '''Factorial'''s and  
  
−
To summarize, we learned how to:
+
|-
 +
|09:08
 +
|'''Cross reference''' equations by numbering.
  
−
Write Set operations
+
|-
 +
|09:11
 +
|'''Spoken Tutorial''' project is a part of the '''Talk to a Teacher''' project, supported by the National Mission on Education through ICT, MHRD, Government of India.
  
−
Write Factorials and
+
|-
 +
|09:23
 +
|This project is coordinated by http://spoken-tutorial.org.
 +
 
 +
|-
 +
|09:27
 +
|More information on the same is available at the following link.
  
−
Cross reference equations by numbering
 
 
|-
 
|-
−
|Acknowledgement Slide
+
|09:32
−
|Spoken Tutorial Project is a part of the Talk to a Teacher project, supported by the National Mission on Education through ICT, MHRD, Government of India.
+
|This script has been contributed by Priya Suresh, Desicrew Solutions. And this is Saundarya, desicrew solutions,  signing off.
−
This project is co-ordinated by http://spoken-tutorial.org.
+
Thanks for joining.
−
More information on the same is available at the following link http://spoken-tutorial.org/NMEICT-Intro.
+
−
This script has been contributed by Priya Suresh, Desicrew Solutions, and this is (the name of the narrator and affiliation
+
−
and place) signing off. Thanks for joining.
+

Latest revision as of 10:30, 24 March 2017

Time Narration
00:00 Welcome to the Spoken tutorial on LibreOffice Math.
00:04 In this tutorial, we will learn how to:
00:07 Write Set operations
00:10 Write Factorials and
00:12 Cross reference equations by numbering.
00:16 For this, let us first open our example 'Writer' document that we created in our previous tutorials "MathExample1.odt".
00:29 Here, let us go to the end of the document and press Control, Enter to go to a new page.
00:37 And type “Set Operations: ” and press Enter twice.
00:42 Now, let us call Math.
00:45 Before we go ahead, let us increase the Font-size to 18 point.
00:51 Change the Alignment to the Left.
00:54 Let us now learn how to write Set operations.
01:00 Math has separate mark up to represent Sets which are collections of distinct elements.
01:07 Let us write four (4) example sets, in the Formula Editor window, as shown on the screen:
01:14 Set A with 5 elements,
01:18 Set B,Set C,
01:21 and Set D with elements each.
01:26 Notice that to write the brackets for sets, we can use the mark up: lbrace and rbrace.
01:35 Now, we can write set operations such as unions and intersections.
01:42 First, let us write a union operation.
01:46 The mark-up for B union C is the same as we read it;
01:51 and the resulting set is 1, 2, 6, 4 and 5 which includes all the distinct elements in both sets.
02:04 The markup for an intersection operation is again the same as we read it.
02:10 The intersection includes only the common elements from both the sets.
02:16 So, the result of B intersection D is 6.
02:23 And we can also write: set C is a subset of set A, as every element in 'C' is in set A.
02:35 The mark up for this is C subset A.
02:42 You can learn to write more set operations by exploring the Elements window, by clicking on the third icon there.
02:51 Go to View > Elements > Set Operations.
02:59 Let us save our work now.
03:02 Click on File > Save.
03:06 Now, let us write Factorial functions.
03:11 We will designate numbers 1 to 3 for the three formulae we are going to write shortly.
03:19 These will help to cross reference them anywhere within the Writer document.
03:25 Let us go to a new page by clicking three times slowly, outside the Writer gray box.
03:33 Press Control, Enter.
03:36 Type: “Factorial Function: ” and press Enter twice.
03:42 Now, we know how to call Math.
03:45 But, there is another way to bring up the Math object into the Writer.
03:51 For this, simply write ‘f n’ on the Writer document and press F3.
03:59 We are now seeing a new Math object that says E is equal to m c squared
04:07 and along with that the number one (1), within parentheses, on the right.
04:14 Meaning- we can cross reference this formula with the number 1, anywhere in this document.
04:22 We will learn the details of how to do this later.
04:27 For now, let us double-click on the Math object.
04:32 And do the formatting. Font size 18 and 'Left' Alignment.
04:40 Okay, let us now write an example for Factorial.
04:44 The mark up ‘fact’ represents the factorial symbol.
04:50 So, let us overwrite the existing formula with ours:
04:55 5 Factorial = 5 into 4 into 3 into 2 into 1 = 120.
05:07 Notice the mark up here.
05:09 Let us write our next formula in a new Math object here.
05:14 For this, let us first click outside this Writer gray box three times slowly.
05:23 Press the down-arrow key two or three times to go to the end of this page.
05:30 And type ‘f n’ and press F3 to bring up the second Math object.
05:37 Again, we will repeat the formatting
05:46 and overwrite the existing formula with the factorial definition:
05:52 n factorial is equal to prod from k = 1 to n of k.
06:01 Notice the mark-up ‘prod’ which denotes product, similar to sigma for summation.
06:10 Now, let us introduce a third Math object just like the first two
06:20 and rewrite the factorial definition as two conditional formulae, as shown on the screen.
06:30 Notice the mark up ‘binom’ which displays a vertical stack of two elements and helps with better alignment.
06:42 Let us now see how we can cross reference these formulae.
06:47 For this, let us go to a new page
06:51 and type: "An example of factorial is provided here:"
06:59 Now, let us click on the Insert menu and on Cross reference.
07:06 In the new pop-up, let us select Text in the Type list.
07:12 Then choose the first item in the Selection list denoting the first factorial formula we wrote.
07:21 Now choose Reference in the ‘Insert reference to’ list and click on Insert once and close.
07:31 So, the number one (1) in parentheses has appeared next to our text. And we are done.
07:39 Let us test it by simply clicking on this number
07:43 and notice that the cursor has jumped to the location where we wrote the first formula.
07:51 So, this is how we can cross reference Math formulae anywhere within the Writer document.
07:58 Let us save our work.
08:01 Here are some reference links for Math:
08:06 Download Guide at 'libreoffice.org documentation' link.
08:14 You can also visit the following website for more information on Math.
08:20 And finally, here is an assignment for you. Use the Writer document.
08:25 Using the example Sets in this tutorial: check if A union ( B union C) is equal to (A union B) union C.
08:40 Write the results of A minus B
08:43 and cross reference the second and third factorial formulae in the Writer document.
08:51 This brings us to the end of this tutorial on Sets, Factorials and Cross Referencing in LibreOffice Math.
08:59 To summarize, we learned how to:
09:03 Write Set operations
09:05 Write Factorials and
09:08 Cross reference equations by numbering.
09:11 Spoken Tutorial project is a part of the Talk to a Teacher project, supported by the National Mission on Education through ICT, MHRD, Government of India.
09:23 This project is coordinated by http://spoken-tutorial.org.
09:27 More information on the same is available at the following link.
09:32 This script has been contributed by Priya Suresh, Desicrew Solutions. And this is Saundarya, desicrew solutions, signing off.

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Contributors and Content Editors

Jyotisolanki, Krupali, Minal, PoojaMoolya, Pratik kamble, Ranjana, Sandhya.np14, Sneha

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