LibreOffice-Suite-Math/C2/Matrices-Aligning-Equations/English-timed - Revision history

PoojaMoolya at 04:53, 24 March 2017

2017-03-24T04:53:09Z

Sandhya.np14 at 12:26, 12 January 2016

2016-01-12T12:26:39Z

Sandhya.np14 at 08:59, 12 January 2016

2016-01-12T08:59:26Z

Sandhya.np14 at 15:07, 15 October 2015

2015-10-15T15:07:41Z

Show changes

Pratik kamble at 10:21, 9 July 2014

2014-07-09T10:21:57Z

Minal: Created page with '{| border=1 || Time || Narration |- ||00:00 ||Welcome to the Spoken tutorial on LibreOffice Math. |- ||00:04 ||In this tutorial, we will learn how to: Write a Matrix |- ||00:0…'

2012-12-28T09:25:44Z

Created page with '{| border=1 || Time || Narration |- ||00:00 ||Welcome to the Spoken tutorial on LibreOffice Math. |- ||00:04 ||In this tutorial, we will learn how to: Write a Matrix |- ||00:0…'

New page

{| border=1
|| Time
|| Narration

|-
||00:00
||Welcome to the Spoken tutorial on LibreOffice Math.

|-
||00:04
||In this tutorial, we will learn how to: Write a Matrix

|-
||00:08
||And Align equations on a particular character

|-
||00:12
||For this, let us first open our example Writer document that we created in our previous tutorials: MathExample1.odt.

|-
||00:25
||Notice all the previous example formulae which we wrote using Math.

|-
||00:30
||Now let us scroll to the last page of the document and press Control Enter to go to a new page.

|-
||00:39
||Let us call Math by clicking Insert menu, then Object and then Formula.

|-
||0049:
||In mathematics, a Matrix is a rectangular array of numbers or symbols, which are called elements.

|-
||00:59
||Math has separate mark up to represent a Matrix and its rows and columns of elements.

|-
||01:08
||I have the examples written already so as to save time . I will copy and paste them. Now we’ll learn how to write the 2 by 3 matrix.

|-
||01:24
||This matrix has 2 rows and 3 columns.

|-
||01:29
||We will use the markup ‘Matrix’ and include all its elements within curly brackets in the Formula Editor window.

|-
||01:40
||Notice that the elements in a row are separated by one hash symbol.

|-
||01:48
||And the rows are separated by two hash symbols.

|-
||01:55
||Use parentheses to enclose the matrix in brackets.

|-
||02:01
||Now, notice that the brackets are short and do not cover all the elements in the matrix entirely.

|-
||02:12
||They are of the same size as each element, and hence are not scalable to the size of the matrix.

|-
||02:22
||To solve this, we can use the words ‘Left’ and ‘Right’

|-
||02:28
||i.e.Left just before open bracket and Right before close bracket to make the brackets scalable.

|-
||02:41
||Let me copy and paste the next example.

|-
||02:46
||So a 4 by1 matrix will look like as shown on the screen.

|-
||02:52
||Notice the scalable brackets in the Writer gray box.

|-
||02:57
||The markup for the matrix is as shown on the screen.

|-
||03:03
||Here we can also use square brackets instead of parentheses.

|-
||03:09
||So using the matrix mark up, we can write matrices of any dimensions.

|-
||03:17
||Now let us write an example for Matrix addition.

|-
||03:23
||Let us go to a new line in the Formula Editor Window.

|-
||03:28
||We can press the Enter key twice to add two blank lines.

|-
||03:36
||First let us write two example 2 by 3 matrices side by side as shown on the screen.

|-
||03:46
||Next, let us add a plus symbol in between these two matrices to denote addition.

|-
||03:54
||To do this, we can simply click between the gap of these two matrices in the Writer Gray box.

|-
||04:03
||Notice that the cursor in the Formula Editor Window is placed roughly between the two matrix mark ups here.

|-
||04:12
||Type plus in between these two matrices

|-
||04:17
||So there is the plus symbol.

|-
||04:20
||Next let us add an ‘equal to’ symbol at the end with long gaps

|-
||04:28
||And then the third matrix on the right denoting the addition.

|-
||04:35
||Notice that we have used Greek characters in our example.

|-
||04:42
||So there is the result of the addition of two matrices.

|-
||04:47
||Let us save our work.

|-
||04:50
||Next, let us see an example of multiplying a matrix by a number.

|-
||04:58
||We will write a 2 by 3 matrix and multiply it by 4.

|-
||05:04
||We will first write ‘4 times’ followed by the matrix.

|-
||05:10
||Let me copy the matrix and paste it in FEW.

|-
||05:17
||Next let us write the ‘equal to’ symbol at the end with long gaps

|-
||05:24
||Followed by the matrix product. I am copying and pasting the mark up for the matrix product.

|-
||05:33
||So there is the product of multiplying a 2 by 3 matrix by a number.

|-
||05:40
||Now, we can format matrices by clicking on the Format menu and choosing the font, font sizes, alignment or the spacing.

|-
||05:51
||For example, let us choose spacing.

|-
||05:55
||In the category drop down on the right, let us choose Matrices.

|-
||06:02
||And change the line spacing to 20 percent and column spacing to 50 percent. Click OK.

|-
||06:17
||Notice how the matrices and their elements are well spaced out.

|-
||06:23
||Let us save our work now by clicking on File and Save.

|-
||06:29
||Now, we can also use matrices to write two or three equations and then align them on a particular character.

|-
||06:37
||For example, we can write simultaneous equations and align them on the ‘equal to’ character.

|-
||06:46
||Let us write a set of Simultaneous equations now as shown on the screen.

|-
||06:52
||Notice that they are not perfectly aligned on the ‘equal to’ character.

|-
||06:58
||So, here we can use the matrix mark up to align them.

|-
||07:03
||We can separate each part in the equation and treat the parts as elements of a matrix.

|-
||07:10
||Here, 2x is a part, y is a part, ‘equal to’ character is a part and so on.

|-
||07:20
||Press enter twice. Copy and paste the mark up.

|-
||07:26
||And, thus the new mark up looks like as shown on the screen.

|-
||07:31
||Here, we have used the matrix mark up, treated each part of the equation as an element and separated them by # symbols.

|-
||07:43
||We have used the double hash symbols to separate the two equations.

|-
||07:50
||So there is a perfectly aligned set of equations.

|-
||07:56
||Let us write another set of equations.

|-
||07:59
||Here let us suppose that we don’t have equal number of parts on the left and the right of the ‘equal to’ character.

|-
||08:09
||Notice the equations on the screen, and they are not aligned on the ‘equal to’ character.

|-
||08:16
||Let us rewrite the mark up to align them. Press enter twice. I am copying and pasting the markup.

|-
||08:25
||So here, we have used align r and align l to align the parts to the right and the left of the ‘equal to’ character.

|-
||08:36
||And there is our perfectly aligned set of equations.

|-
||08:41
||Here is an assignment for you:

|-
||08:43
||Write steps for multiplying a 2x3 matrix by a 3x1 matrix. Use formatting to change the fonts, sizes and the spacing.

|-
||08:56
||Write a set of three equations. Align the equations at the ‘equal to’ character.

|-
||09:04
||This brings us to the end of this tutorial on Matrix and Aligning equations in LibreOffice Math.

|-
||09:11
||To summarize, we learned the following topics:

|-
||09:15
||Write a Matrix And Align equations on a particular character

|-
||09:20
||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.

|-
||09:32
||This project is co-ordinated by http://spoken-tutorial.org.

|-
||09:37
||More information on the same is available at the following link.

|-
||09:40
||This tutorial has been contributed by ...............................(Name of the translator and narrator)

And this is -----------------------(name of the recorder) from --------------------------(name of the place)signing off. Thanks for watching.

Thanks for joining
|-

@@ Line 2: / Line 2: @@
 || '''Time'''
 || '''Narration'''
 |-
 ||00:00
@@ Line 12: / Line 13: @@
 |-
 ||00:08
-||* Align equations on a particular character.
+||Align equations on a particular character.
 |-
@@ Line 31: / Line 32: @@
 |-
-||0049:
+||00:49
 ||In mathematics, a '''matrix''' is a rectangular '''array''' of numbers or symbols which are called '''element'''s.
@@ Line 304: / Line 305: @@
 |-
 ||09:15
-||* Write a Matrix and * Align equations on a particular character.
+||Write a Matrix and * Align equations on a particular character.
 |-

@@ Line 1: / Line 1: @@
 {| border=1
-|| Time
+|| '''Time'''
-|| Narration
+|| '''Narration'''
-−
 |-
 ||00:00

@@ Line 84: / Line 84: @@
 |-
 ||02:46
-||So, a '4 by 1' matrix will look like as shown on the screen.
+||So, a '''4 by 1''' matrix will look like as shown on the screen.
 |-
@@ Line 116: / Line 116: @@
 |-
 ||03:36
-||First, let us write two example '2 by 3' matrices, side by side, as shown on the screen.
+||First, let us write two example '''2 by 3''' matrices, side by side, as shown on the screen.
 |-
@@ Line 132: / Line 132: @@
 |-
 ||04:12
-||Type plus in between these two matrices.
+||Type plus (+) in between these two matrices.
 |-
 ||04:17
-||So, there is the plus symbol.
+||So, there is the plus symbol (+).
 |-
 ||04:20
-||Next, let us add an ‘equal to’ symbol at the end with long '''gap'''s.
+||Next, let us add an equal to symbol (=) at the end with long '''gap'''s.
 |-
 ||04:28
-||And then, the third matrix on the right denoting the addition.
+||And then, the third matrix on the right, denoting the addition.
 |-
@@ Line 164: / Line 164: @@
 |-
 ||04:58
-||We will write a '2 by 3' matrix and multiply it by 4.
+||We will write a '''2 by 3''' matrix and multiply it by 4.
 |-
 ||05:04
-||We will first write ‘4 times’  followed by the matrix.
+||We will first write 4 times, followed by the matrix.
 |-
@@ Line 176: / Line 176: @@
 |-
 ||05:17
-||Next, let us write the ‘equal to’ symbol at the end with long '''gap'''s
+||Next, let us write the equal to (=) symbol at the end with long '''gap'''s
 |-
@@ Line 184: / Line 184: @@
 |-
 ||05:33
-||So, there is the product of multiplying a '2 by 3' matrix by a number.
+||So, there is the product of multiplying a '''2 by 3''' matrix by a number.
 |-
 ||05:40
-||Now, we can '''format''' matrices by clicking on the '''Format''' menu and choosing the '''font, font sizes, alignment''' or the '''spacing'''.
+||Now, we can '''format''' matrices by clicking on the '''Format''' menu and choosing the '''Fonts, Font Size, Alignment''' or the '''Spacing'''.
 |-
 ||05:51
-||For example, let us choose '''spacing'''.
+||For example, let us choose '''Spacing'''.
 |-
 ||05:55
-||In the '''Category''' drop-down, on the right, let us choose '''Matrices'''.
+||In the '''Category''' drop-down, on the right, let us choose '''Matrices'''
 |-
 ||06:02
-||And change the line '''spacing''' to 20 percent and column spacing to 50 percent. Click '''OK'''.
+||and change the '''Line spacing''' to 20 percent and column spacing to 50 percent. Click '''OK'''.
 |-
 ||06:17
-||Notice how the matrices and their elements are well spaced out.
+||Notice, how the matrices and their elements are well spaced out.
 |-
@@ Line 216: / Line 216: @@
 |-
 ||06:37
-||For example, we can write simultaneous equations and align them on the ‘equal to’ character.
+||For example, we can write simultaneous equations and align them on the '''equal to''' character.
 |-
 ||06:46
-||Let us write a set of simultaneous equations now as shown on the screen.
+||Let us write a set of simultaneous equations now, as shown on the screen.
 |-
 ||06:52
-||Notice that they are not perfectly aligned on the ‘equal to’ character.
+||Notice that they are not perfectly aligned on the '''equal to''' character.
 |-
 ||06:58
-||So, here we can use the matrix mark up to align them.
+||So, here we can use the matrix mark-up to align them.
 |-
@@ Line 236: / Line 236: @@
 |-
 ||07:10
-||Here, 2x is a part, y is a part, ‘equal to’ character is a part and so on.
+||Here, '2x' is a part, 'y' is a part, '''equal to''' character is a part and so on.
 |-
@@ Line 248: / Line 248: @@
 |-
 ||07:31
-||Here, we have used the '''matrix mark up''', treated each part of the equation as an element and separated them by # symbols.
+||Here, we have used the '''matrix mark up''', treated each part of the equation as an '''element''' and separated them by # (hash) symbols.
 |-
@@ Line 264: / Line 264: @@
 |-
 ||07:59
-||Here, let us suppose that we don’t have equal number of parts on the left and the right of the ‘equal to’ character.
+||Here, let us suppose that we don’t have equal number of parts on the left and the right of the '''equal to''' character.
 |-
 ||08:09
-||Notice the equations on the screen and they are not aligned on the ‘equal to’ character.
+||Notice the equations on the screen and they are not aligned on the '''equal to''' character.
 |-
@@ Line 276: / Line 276: @@
 |-
 ||08:25
-||So here, we have used align 'r' and align 'l' to align the parts to the right and the left of the ‘equal to’ character.
+||So here, we have used '''alignr''' and '''alignl''' to align the parts to the right and the left of the '''equal to''' character.
 |-
@@ Line 288: / Line 288: @@
 |-
 ||08:43
-||Write steps for multiplying a 2x3 matrix by a 3x1 matrix. Use formatting to change the fonts, sizes and the spacing.
+||Write steps for multiplying a 2x3 matrix by a 3x1 matrix. Use formatting to change the '''font sizes''' and the '''spacing'''.
 |-
 ||08:56
-||Write a set of three equations. Align the equations at the ‘equal to’ character.
+||Write a set of three equations. Align the equations at the equal to (=) character.
 |-
@@ Line 304: / Line 304: @@
 |-
 ||09:15
-||* Write a Matrix And * Align equations on a particular character.
+||* Write a Matrix and * Align equations on a particular character.
 |-

@@ Line 8: / Line 8: @@
 |-
 ||00:04
-||In this tutorial, we will learn how to: * Write a Matrix and
+||In this tutorial, we will learn how to: * Write a '''matrix''' and
 |-
@@ Line 16: / Line 16: @@
 |-
 ||00:12
-||For this, let us first open our example '''Writer document''' that we created in our previous tutorials- 'MathExample1.odt'.
+||For this, let us first open our example '''Writer document''' that we created in our previous tutorials- "MathExample1.odt".
 |-
@@ Line 32: / Line 32: @@
 |-
 ||0049:
-||In mathematics, a '''matrix''' is a rectangular array of numbers or symbols which are called elements.
+||In mathematics, a '''matrix''' is a rectangular '''array''' of numbers or symbols which are called '''element'''s.
 |-
@@ Line 40: / Line 40: @@
 |-
 ||01:08
-||I have the examples written already so as to save time. I will '''copy''' and '''paste''' them. Now, we’ll learn how to write a '2 by 3' matrix.
+||I have the examples written already so as to save time. I will '''copy''' and '''paste''' them. Now, we’ll learn how to write a '''2 by 3''' matrix.
 |-
@@ Line 48: / Line 48: @@
 |-
 ||01:29
-||We will use the '''markup''' ‘Matrix’ and include all its elements within curly brackets in the '''Formula Editor''' window.
+||We will use the '''markup''' matrix and include all its elements within curly brackets, in the '''Formula Editor''' window.
 |-
 ||01:40
-||Notice that the '''element'''s in a row are separated by one hash symbol.
+||Notice that the '''element'''s in a row are separated by one hash symbol
 |-
 ||01:48
-||And the rows are separated by two hash symbols.
+||and the rows are separated by two hash symbols.
 |-