Difference between revisions of "LaTeX/C3/Feedback-diagram-with-Maths/English-timed"
From Script | Spoken-Tutorial
Sandhya.np14 (Talk | contribs) |
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| − | |Welcome to the spoken tutorial on embedding mathematics in Xfig | + | |Welcome to the '''spoken tutorial''' on embedding mathematics in '''Xfig'''. |
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|00:05 | |00:05 | ||
| − | |In this tutorial, I shall explain how to | + | |In this tutorial, I shall explain how to create this figure. |
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|00:11 | |00:11 | ||
| − | |Observe the mathematical expression in the second block | + | |Observe the mathematical expression in the second block. |
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|00:16 | |00:16 | ||
| − | |You can embed any mathematical expression after learning this tutorial | + | |You can embed any mathematical expression after learning this tutorial. |
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|00:23 | |00:23 | ||
| − | |We shall create the figure in the previous slide, starting from this figure which was created in the spoken tutorial on “Feedback Diagrams through Xfig” | + | |We shall create the figure in the previous slide, starting from this figure, which was created in the spoken tutorial on '''“Feedback Diagrams through Xfig”'''. |
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|00:36 | |00:36 | ||
| − | |You should learn this tutorial before starting the current one | + | |You should learn this tutorial before starting the current one. |
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|00:42 | |00:42 | ||
| − | |Let me now explain what all you need to learn the material taught in this | + | |Let me now explain, what all you need to learn the material taught in this course. |
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|00:48 | |00:48 | ||
| − | |I am using Xfig | + | |I am using '''Xfig''' Version '''3.2''', '''patch level 5'''. |
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|00:52 | |00:52 | ||
| − | |You also need LaTeX | + | |You also need '''LaTeX''' and a familiarity with it. |
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|00:56 | |00:56 | ||
| − | |You also need image cropping software | + | |You also need '''image cropping software'''. |
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|01:01 | |01:01 | ||
| − | |pdfcrop works on Linux and Mac OS X .We will cover it in this tutorial | + | |'''pdfcrop''' works on '''Linux''' and '''Mac OS X'''. We will cover it in this tutorial. |
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|01:09 | |01:09 | ||
| − | |Briss is said to work on Windows also, but not covered in this tutorial | + | |Briss is said to work on '''Windows''' also, but not covered in this tutorial. |
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|01:15 | |01:15 | ||
| − | |Let us go to Xfig | + | |Let us go to '''Xfig'''. |
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|01:19 | |01:19 | ||
| − | |Let us choose | + | |Let us choose '''File''', then '''Open'''. |
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|01:26 | |01:26 | ||
| − | |If we scroll through the list, we will see the file “feedback.fig”, created in the spoken tutorial on “Feedback Diagrams through Xfig” .Let us click it | + | |If we scroll through the list, we will see the file “feedback.fig”, created in the spoken tutorial on “Feedback Diagrams through Xfig”. Let us click it. |
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|01:42 | |01:42 | ||
| − | |We will see the figure inside this box | + | |We will see the figure inside this box. |
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|01:45 | |01:45 | ||
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|02:05 | |02:05 | ||
| − | |Using the | + | |Using the '''Save as''' option on '''“File”''', we will save this figure as '''maths'''. |
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|02:20 | |02:20 | ||
| − | |Let us save it. | + | |Let us '''save''' it. |
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|02:24 | |02:24 | ||
| − | |We now have the file maths.fig | + | |We now have the file "maths.fig". |
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|02:27 | |02:27 | ||
| − | |Let us select “Edit” and click the text “Plant” | + | |Let us select “Edit” and click the text “Plant”. |
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|02:34 | |02:34 | ||
| − | |Let me take the mouse here. Let me delete this and enter | + | |Let me take the '''mouse''' here. Let me delete this and enter |
| − | $G(z) = \frac z{z-1}$ | + | '''$G(z) = \frac z{z-1}$''' |
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|02:50 | |02:50 | ||
| − | |Make sure that the mouse stays within the box while typing | + | |Make sure that the mouse stays within the box while typing. |
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|02:56 | |02:56 | ||
| − | |The default value for “Flag” is | + | |The default value for '''“Flag”''' is “Normal” - change it to “Special”. |
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|03:01 | |03:01 | ||
| − | |Click | + | |Click “Done”. |
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|03:07 | |03:07 | ||
| − | |As the text is long, it overlaps with other entries | + | |As the text is long, it overlaps with other entries. |
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|03:12 | |03:12 | ||
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|03:26 | |03:26 | ||
| − | |Let me choose | + | |Let me choose '''Grid''' mode. |
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|03:31 | |03:31 | ||
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|03:44 | |03:44 | ||
| − | |Let us export using combined pdf and | + | |Let us '''export''' using combined 'pdf' and 'Latex' files. |
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|03:51 | |03:51 | ||
| − | |File | + | |File > Export > Combined pdf/LaTeX. Let us '''Export'''. |
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|04:03 | |04:03 | ||
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|04:11 | |04:11 | ||
| − | |Let me go to the terminal. | + | |Let me go to the '''terminal'''. |
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|04:13 | |04:13 | ||
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|04:21 | |04:21 | ||
| − | |We get a list of files, with the last one being the most recent | + | |We get a list of files, with the last one being the most recent. |
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|04:26 | |04:26 | ||
| − | |The last two files are maths.pdf_t and maths.pdf | + | |The last two files are "maths.pdf_t" and "maths.pdf". |
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|04:33 | |04:33 | ||
| − | |Let us give the command “open maths.pdf” | + | |Let us give the command “open maths.pdf”. |
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|04:42 | |04:42 | ||
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|04:45 | |04:45 | ||
| − | |We can see the block diagram without the mathematical expression | + | |We can see the block diagram without the mathematical expression. |
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|04:50 | |04:50 | ||
| − | |Let me close this | + | |Let me close this. |
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|04:52 | |04:52 | ||
| − | |Let us see maths.pdf_t in emacs editor that I have already opened | + | |Let us see "maths.pdf_t" in emacs editor that I have already opened. |
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|05:01 | |05:01 | ||
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|05:14 | |05:14 | ||
| − | |Please note that you do NOT have to use emacs | + | |Please note that you do NOT have to use emacs. |
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|05:17 | |05:17 | ||
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|05:22 | |05:22 | ||
| − | |You can see that the “picture” environment is used | + | |You can see that the “picture” environment is used. |
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|05:26 | |05:26 | ||
| − | |It also makes use of “includegraphics” and “color” packages – we need to tell LaTeX to take care of this requirement | + | |It also makes use of “includegraphics” and “color” packages – we need to tell LaTeX to take care of this requirement. |
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|05:41 | |05:41 | ||
| − | |Let me now open the file maths-bp.tex,I have already created for this tutorial | + | |Let me now open the file "maths-bp.tex", I have already created for this tutorial. |
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|05:59 | |05:59 | ||
| − | |I have used article class | + | |I have used '''article''' class. |
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|06:02 | |06:02 | ||
| − | |I have used color and graphicx packages as these are used in the file pdf_t, the one we saw earlier. | + | |I have used '''color''' and '''graphicx''' packages as these are used in the file 'pdf_t', the one we saw earlier. |
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|06:15 | |06:15 | ||
| − | |I want empty pagestyle | + | |I want '''empty''' '''pagestyle''' as I do not want the page number. |
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|06:20 | |06:20 | ||
| − | |Finally, I want to include the file maths.pdf_t | + | |Finally, I want to include the file "maths.pdf_t" |
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|06: 27 | |06: 27 | ||
| − | |Let us invoke the command “pdflatex maths-bp” in the terminal | + | |Let us invoke the command “pdflatex maths-bp” in the terminal. |
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|06:42 | |06:42 | ||
| − | |We get the message that the maths-bp.pdf is created. | + | |We get the message that the "maths-bp.pdf" is created. |
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|06:48 | |06:48 | ||
| − | |Let us open it with the command “open maths-bp.pdf” | + | |Let us open it with the command “open maths-bp.pdf”. |
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|06:58 | |06:58 | ||
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|07:07 | |07:07 | ||
| − | |Now that we know that the mathematical expression is working, let us move the text inside the block | + | |Now that we know that the mathematical expression is working, let us move the text inside the block. |
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|07:30 | |07:30 | ||
Revision as of 16:26, 11 December 2015
| Time | Narration |
| 00:00 | Welcome to the spoken tutorial on embedding mathematics in Xfig. |
| 00:05 | In this tutorial, I shall explain how to create this figure. |
| 00:11 | Observe the mathematical expression in the second block. |
| 00:16 | You can embed any mathematical expression after learning this tutorial. |
| 00:23 | We shall create the figure in the previous slide, starting from this figure, which was created in the spoken tutorial on “Feedback Diagrams through Xfig”. |
| 00:36 | You should learn this tutorial before starting the current one. |
| 00:42 | Let me now explain, what all you need to learn the material taught in this course. |
| 00:48 | I am using Xfig Version 3.2, patch level 5. |
| 00:52 | You also need LaTeX and a familiarity with it. |
| 00:56 | You also need image cropping software. |
| 01:01 | pdfcrop works on Linux and Mac OS X. We will cover it in this tutorial. |
| 01:09 | Briss is said to work on Windows also, but not covered in this tutorial. |
| 01:15 | Let us go to Xfig. |
| 01:19 | Let us choose File, then Open. |
| 01:26 | If we scroll through the list, we will see the file “feedback.fig”, created in the spoken tutorial on “Feedback Diagrams through Xfig”. Let us click it. |
| 01:42 | We will see the figure inside this box. |
| 01:45 | Let us open it. |
| 01:53 | Let us bring it inside. |
| 02:01 | Let us also zoom it. |
| 02:05 | Using the Save as option on “File”, we will save this figure as maths. |
| 02:20 | Let us save it. |
| 02:24 | We now have the file "maths.fig". |
| 02:27 | Let us select “Edit” and click the text “Plant”. |
| 02:34 | Let me take the mouse here. Let me delete this and enter
$G(z) = \frac z{z-1}$ |
| 02:50 | Make sure that the mouse stays within the box while typing. |
| 02:56 | The default value for “Flag” is “Normal” - change it to “Special”. |
| 03:01 | Click “Done”. |
| 03:07 | As the text is long, it overlaps with other entries. |
| 03:12 | Let us move the text outside the box and work with it. |
| 03:23 | Let me click here. |
| 03:26 | Let me choose Grid mode. |
| 03:31 | Once we are satisfied with any changes that we may want here, we can put it back inside the box. |
| 03:39 | Let us save the file. |
| 03:44 | Let us export using combined 'pdf' and 'Latex' files. |
| 03:51 | File > Export > Combined pdf/LaTeX. Let us Export. |
| 04:03 | There is an error message I get. But let us not worry about this. |
| 04:11 | Let me go to the terminal. |
| 04:13 | Let me type “ls -lrt” |
| 04:21 | We get a list of files, with the last one being the most recent. |
| 04:26 | The last two files are "maths.pdf_t" and "maths.pdf". |
| 04:33 | Let us give the command “open maths.pdf”. |
| 04:42 | Let us bring it inside. |
| 04:45 | We can see the block diagram without the mathematical expression. |
| 04:50 | Let me close this. |
| 04:52 | Let us see "maths.pdf_t" in emacs editor that I have already opened. |
| 05:01 | It is here. Let me open it. |
| 05:14 | Please note that you do NOT have to use emacs. |
| 05:17 | You can use WHATEVER editor that you are comfortable with |
| 05:22 | You can see that the “picture” environment is used. |
| 05:26 | It also makes use of “includegraphics” and “color” packages – we need to tell LaTeX to take care of this requirement. |
| 05:41 | Let me now open the file "maths-bp.tex", I have already created for this tutorial. |
| 05:59 | I have used article class. |
| 06:02 | I have used color and graphicx packages as these are used in the file 'pdf_t', the one we saw earlier. |
| 06:15 | I want empty pagestyle as I do not want the page number. |
| 06:20 | Finally, I want to include the file "maths.pdf_t" |
| 06: 27 | Let us invoke the command “pdflatex maths-bp” in the terminal. |
| 06:42 | We get the message that the "maths-bp.pdf" is created. |
| 06:48 | Let us open it with the command “open maths-bp.pdf”. |
| 06:58 | We have the file we want. Let me zoom it. |
| 07:07 | Now that we know that the mathematical expression is working, let us move the text inside the block. |
| 07:30 | Let us save and export. It is already in the required language. Export. |
| 07:38 | Let us dismiss this warning. |
| 07:41 | Let me compile it again. |
| 07:44 | Let us click the pdf browser that has the file |
| 07: 49 | Now you see the mathematical expression inside the box, the way we want |
| 07:56 | Let us now see what happens if we do not choose the special flag. |
| 08:01 | Let me come here. |
| 08:04 | Let me edit the text, change the “Special Flag” to “normal”. Done. |
| 08:25 | File, save. Let me export |
| 08:37 | Let me compile. Let me come here. |
| 08:41 | The formula is no longer in the form we want |
| 08:46 | Let us change the “special flag” back to “special” |
| 09:03 | Save, export |
| 09:12 | Recompile. See that the file is in the form we want. |
| 09:18 | Let us now improve the appearance of this formula |
| 09:22 | In this case, the use of dfrac will make the fraction look better. |
| 09:28 | In view of this, let us change frac to dfrac. |
| 09:38 | Let me click here. Keep the mouse inside the box. |
| 09:43 | Put d here. Done. Save, export. |
| 09:52 | Let us compile once again using “pdflatex” |
| 10:03 | We get the error message “Undefined control sequence” \dfrac |
| 10:11 | LaTeX complains because the command \dfrac is defined in the package “Amsmath” but we have not included it. |
| 10:21 | We need to include it in the file maths-bp.tex. |
| 10:27 | Let us do it. Let us go to emacs. |
| 10:35 | Enter “\usepackage{amsmath}” |
| 10:41 | Let us save the file. Let us compile once again. Let me first exit. |
| 10:49 | Let me now recompile. Now it compiles.Let us click this. |
| 10:59 | We see that the fraction has now come out nicely. |
| 11:03 | We have now achieved our objective of learning how to embed mathematical expressions in Xfig |
| 11:11 | It is important to note that Xfig does not interpret the LaTeX commands at all. |
| 11:16 | The interpretation is done by the “pdflatex” command |
| 11:20 | The LaTeX commands have to be correct and consistent at the time of compilation. |
| 11:25 | We will now explain how to remove the white space around the figure. |
| 11:31 | Let me go to the terminal. |
| 11:33 | Let me type the command “pdfcrop maths-bp.pdf” - this is the file we created, into “maths-out.pdf”. |
| 11:53 | Pdfcrop says one page written on this file. |
| 11:57 | “pdfcrop” takes an input file, trims the space around the figure and writes out the cropped file in the output file. |
| 12:09 | “pdfcrop” is already installed in my system. |
| 12:12 | If you do not have it, you need to install it first. |
| 12:15 | Let us view this output file by the command, “open maths-out.pdf”. |
| 12:29 | Let me bring it inside. |
| 12:31 | The figure has now become extremely compact. |
| 12:34 | The white space that was here has been completely removed. |
| 12:38 | We can now insert this into documents. |
| 12:42 | Let me close this. Let me close this also. Let me close this also. |
| 12:52 | Let me come back to the slides. |
| 12:57 | The software “briss” can also be used to crop the white space. |
| 13:01 | It is supposed to work on Linux, Mac OS X and also on Windows. |
| 13:08 | I have checked its working on Mac OS X. But we will not demonstrate it here. |
| 13:17 | We have now come to the end of this tutorial |
| 13:20 | We have an assignment for you .Make the diagram created in this tutorial more symmetric and beautiful |
| 13:27 | Try out different mathematical expressions |
| 13:30 | Try out other options, such as flip and rotate, not covered in the spoken tutorial |
| 13:36 | Try to build different diagrams .Explore the library |
| 13:41 | Do an internet search and locate information relevant to Xfig |
| 13:47 | Useful learning material is available at spoken-tutorial.org. It is here. |
| 14:02 | The concept of spoken tutorials is explained in "What is a Spoken Tutorial" |
| 14:09 | You may learn LaTeX using the spoken tutorials available here, which I have downloaded in this tab. |
| 14:19 | The tutorial on Mathematical Typesetting explains how to create maths in LaTeX |
| 14:29 | The tutorial on Tables and Figures explains how to place figures, of the type created in this tutorial, into documents |
| 14:38 | This website has a lot of useful information, including, Xfig tutorials. Come back to the slides. |
| 14:53 | Spoken Tutorial is a part of the Talk to a Teacher project, supported by the National Mission on Education through ICT (NMEICT), MHRD, Government of India. |
| 15:03 | More information on this mission is available at spoken-tutorial.org/NMEICT-Intro |
| 15:12 | We welcome your participation and also feedback. |
| 15:16 | This is Kannan Moudgalya signing off. Thanks for joining. Goodbye |
