You can disable super/subscripting within an org file by adding the following line:

    #+OPTIONS: ^:nil

Check the org manual for more options.   
The following command inserts a template containing all the options:
    `C-c C-e #`


I was able to solve the issue by setting the following variable:

    (setq org-export-with-sub-superscripts nil)

I think this would be easier: http://orgmode.org/manual/Subscripts-and-superscripts.html
Escape the underscore with a backslash:


![enter image description here][2]

![enter image description here][1]


Now, escape the _:

![enter image description here][3]

![enter image description here][4]


You can see this in action here: http://www.railsonmaui.com/blog/2013/04/27/octopress-setup-with-github-and-org-mode/

  [1]: http://i.stack.imgur.com/pTaDX.jpg
  [2]: http://i.stack.imgur.com/p6Opd.jpg
  [3]: http://i.stack.imgur.com/SLQBI.jpg
  [4]: http://i.stack.imgur.com/vjiFB.jpg

Use `\under` (Documentation on [The Org Manual: Special symbols][1])

For example:

    text\under{}text


  [1]: https://orgmode.org/manual/Special-symbols.html#Special-symbols

Do you want to prevent subscripts in the onscreen display of the source file or in the text of the output PDF? If the latter, then you want

    \usepackage{underscore}

It won&#39;t break the use of underscores in maths mode, either.

For individual cases, insert a literal underscore this way:

    text text one\textunderscore{}two text

In my case any word that contains an underscore is likely to be a variable name or something similar. I just surround it with `=` or `~` so that it&#39;s treated as such. Then it will be exported accordingly.

When I make a new array/hash in **irb**, it prints out a nice format to show the structure, ex.

    [&quot;value1&quot;, &quot;value2&quot;, &quot;value3&quot;]
    {&quot;key1&quot; =&gt; &quot;value1&quot;}

... but when I try to print out my variables using &lt;code&gt;puts&lt;/code&gt;, I get them collapsed:

    value1
    value2
    value3
    key1
    value1

I gather that &lt;code&gt;puts&lt;/code&gt; is not the right command for what I want, but what is?  I want to be able to view my variables in **irb** in the first format, not the second.

Ruby: How to make IRB print structure for Arrays and Hashes

`&lt;see cref=&quot;switch&quot; /&gt;`, for example, doesn&#39;t work - I get the compilation warning: `XML comment on ... has syntactically incorrect cref attribute &#39;switch&#39;`

______

Context for those who are interested...

    /// &lt;summary&gt;Provides base functionality for hand-coded abstractions of API method wrappers, mostly those that abstract over
    /// parameters that are required to be JSON-encoded.&lt;/summary&gt;
    public class FacebookArgs : Dictionary&lt;String, Object&gt;
    {
        /// &lt;summary&gt;Initializes an instance of &lt;see cref=&quot;FacebookArgs&quot; /&gt;.&lt;/summary&gt;
        public FacebookArgs() { }

        /// &lt;summary&gt;Intializes an instance of &lt;see cref=&quot;FacebookArgs&quot; /&gt;, that contains elements copied from &lt;paramref name=&quot;dictionary &quot;/&gt;.&lt;/summary&gt;
        /// &lt;param name=&quot;dictionary&quot;&gt;&lt;/param&gt;
        public FacebookArgs(IDictionary&lt;String, Object&gt; dictionary)
            : base(dictionary) { }

        /// &lt;summary&gt;Gets or sets the value associated with the specified key.&lt;/summary&gt;
        /// &lt;param name=&quot;key&quot;&gt;The key of the value to get or set.&lt;/param&gt;
        /// &lt;returns&gt;The value associated with the specified key.&lt;/returns&gt;
        /// &lt;remarks&gt;This implementation hides the base indexer implementation such that specifying a key that does not exist returns null rather than throwing a &lt;see cref=&quot;KeyNotFoundException&quot; /&gt;.&lt;/remarks&gt;
        public new Object this[String key]
        {
            get
            {
                Object value;
                if (this.TryGetValue(key, out value)) return value;
                else return null;
            }
            set { base[key] = value; }
        }

        /// &lt;summary&gt;In derived classes, provides specialized serialization logic for specific properties contained in this object.&lt;/summary&gt;
        /// &lt;param name=&quot;key&quot;&gt;The key of the property to serialize.&lt;/param&gt;
        /// &lt;param name=&quot;args&quot;&gt;A reference to a dictionary of arguments that will be passed directly to a &lt;see cref=&quot;FacebookRequest&quot; /&gt; object.&lt;/param&gt;
        /// &lt;remarks&gt;
        /// &lt;para&gt;This method allows specialized serialization logic, such as JSON encoding, to be applied to specific properties.&lt;/para&gt;
        /// &lt;para&gt;To implement, use a &lt;c&gt;switch&lt;/c&gt; (&lt;c&gt;Select&lt;/c&gt; in VB.NET) statement to filter based on &lt;paramref name=&quot;key&quot; /&gt; and provide the property-specific logic.
        /// The resulting value should then be added to &lt;paramref name=&quot;args&quot; /&gt; using the same &lt;paramref name=&quot;key &quot;/&gt;.
        /// &lt;/para&gt;
        /// &lt;para&gt;Properties that do not require additional processing (strings, integral values, etc) should be ignored.&lt;/para&gt;
        /// &lt;/remarks&gt;
        protected virtual void SerializeProperty(String key, ref IDictionary&lt;String, Object&gt; args) { }

        /// &lt;summary&gt;Returns a dictionary of key/value pairs suitable to be passed a &lt;see cref=&quot;FacebookRequest&quot; /&gt; object.&lt;/summary&gt;
        /// &lt;returns&gt;A dictionary of key/value pairs suitable to be passed a &lt;see cref=&quot;FacebookRequest&quot; /&gt; object.&lt;/returns&gt;
        /// &lt;remarks&gt;This method calls the &lt;see cref=&quot;SerializeProperty&quot; /&gt; for each key in the object, which allows property-specific processing
        /// to be done on any property.&lt;/remarks&gt;
        /// &lt;seealso cref=&quot;SerializeProperty&quot; /&gt;
        public IDictionary&lt;String, Object&gt; GetArgs()
        {
            IDictionary&lt;String, Object&gt; args = new Dictionary&lt;String, Object&gt;();

            foreach (String key in this.Keys)
            {
                this.SerializeProperty(key, ref args);

                if (!args.ContainsKey(key) &amp;&amp; this[key] != null)
                {
                    args.Add(key, this[key]);
                }
            }

            return args;
        }
    }

_____

The tag in question can be found in the `&lt;remarks&gt;` tag for `SerializeProperty`. I&#39;m erring on the side of verbose documentation. I also plan on providing some `&lt;example&gt;`s, I just haven&#39;t gotten around to it yet.

How do I reference a C# keyword in XML documentation?

When I export to PDF via org-mode (C-c C-e d), any words with underscores end up being partially converted to subscript. How can I prevent this from happening?

I found this article on the subject:

[Disabling Underscore subscript in Emacs Tex Mode][1]

However, I either wasn&#39;t able to figure out the correct elisp or it simply didn&#39;t work. Note, I don&#39;t want to change any global font options. I only want this fix to apply to tex/latex/org-mode.

I also found this post, though it didn&#39;t work either:

[disable subscript superscript raise/lower?][2]


  [1]: http://gimbo.org.uk/blog/2007/11/11/disabling_underscore_subscript_emacs_tex_mode/
  [2]: http://groups.google.com/group/gnu.emacs.help/browse_thread/thread/bfc9141338bde20b

Disabling underscore-to-subscript in Emacs Org-Mode export

When I export to PDF via org-mode (C-c C-e d), any words with underscores end up being partially converted to subscript. How can I prevent this from happening?
I found this article on the subject:
<a href="http://gimbo.org.uk/blog/2007/11/11/disabling_underscore_subscript_emacs_tex_mode/" target="_blank" rel="noopener noreferrer">Disabling Underscore subscript in Emacs Tex Mode</a>
However, I either wasn't able to figure out the correct elisp or it simply didn't work. Note, I don't want to change any global font options. I only want this fix to apply to tex/latex/org-mode.
I also found this post, though it didn't work either:
<a href="http://groups.google.com/group/gnu.emacs.help/browse_thread/thread/bfc9141338bde20b" target="_blank" rel="noopener noreferrer">disable subscript superscript raise/lower?</a>

Sometimes I need to read log files that have ^M (control-M) in the line endings.  I can do a global replace to get rid of them, but then something more is logged to the log file and, of course, they all come back.

Setting unix-style or dos-style end-of-line encoding doesn&#39;t seem to make much difference (but unix-style is my default).  I&#39;m using the undecided-(unix|dos) coding system.

I&#39;m on windows, reading log files created by log4net (although log4net obviously isn&#39;t the only source of this annoyance).

Any hints?





Hiding ^M in emacs

I want to hide the welcome screen.

My `.emacs` file:

     (setq c-basic-offset 4) ; indents 4 chars
     (setq tab-width 4)          ; and 4 char wide for TAB
     (setq indent-tabs-mode nil) ; And force use of spaces
     
     (turn-on-font-lock)       ; same as syntax on in Vim
     
     (setq width (max width (+ (length str) 1)))   ;line numbers
     
     (setq inhibit-splash-screen t)         ; hide welcome screen

I have tried to run the last line of code in my .emacs unsuccessfully.

How can you hide the welcome screen in Emacs?


Unable to hide welcome screen in Emacs

In Emacs Lisp, how do I check if a variable is defined?

I believe textmate has a mode where if you start typing, the same thing will be entered on all the lines you&#39;ve selected. Is there something similar to this in emacs? I&#39;m guessing there&#39;s a way rectangles can help me, but I&#39;m not sure how...

in Emacs, edit multiple lines at once

I use [Emacs][1] v. 22 (the console version, either remotely with [PuTTY][2] or locally with [Konsole][3]) as my primary text editor on Linux. It takes a while to load up each time I start it though, probably almost a second, although I never timed it. I tend to open and close Emacs a lot, because I&#39;m more comfortable using the [Bash][4] command-line for file/directory manipulation and compiling.

How can I speed up the start-up time?

  [1]: http://en.wikipedia.org/wiki/Emacs
  [2]: http://en.wikipedia.org/wiki/PuTTY
  [3]: http://en.wikipedia.org/wiki/Konsole
  [4]: http://en.wikipedia.org/wiki/Bash_%28Unix_shell%29


How can I make Emacs start-up faster?

I&#39;m including a table in my LaTeX document and the centering works fine if the table isn&#39;t wider than the text column above it, but when the table is wider, the left side of the table sticks to the left side of the text column, and the additional width of the table is on the right side of the page, how can I center the table?

Centering a table wider than the text column

I am using the beamer document class in latex to make a presentation.  I will have a number of back up slides which are there for offline viewing, reference etc.  Beamer has a feature that shows the progress through the presentation as {page#}/{total pages} on each slide.  I would really like it if {total pages} was equivalent to my total number of pages w/out counting the back up slides (I don&#39;t want to discourage my audience on the first page!).  Does anyone know how this can be done?

Ignoring page numbers in backup slides

As suggested [here](https://stackoverflow.com/questions/311118/real-time-latex/398322#398322), `latexmk` is a handy way to continually compile your document whenever the source changes.  But often when you&#39;re working on a document you&#39;ll end up with errors and then `latex` will panic and wait for user input before continuing.  That can get very annoying, especially recently when I hacked up something to compile `latex` directly from an [etherpad](http://etherpad.com) document, which saves continuously as you type.

Is there a setting for `latex` or `latexmk` to make it just abort with an error message if it can&#39;t compile?  Or, if necessary, how would I set up some kind of Expect script to auto-dismiss LaTeX&#39;s complaints?

(I had thought `pdflatex`&#39;s option `-halt-on-error` would do the trick but apparently not.)

Bonus question:  Skim on Mac OSX is a nice pdf viewer that autorefreshes when the pdf changes (unlike Preview), *except* that whenever there&#39;s a latex error it makes you reconfirm that you want autorefreshing.  Texniscope doesn&#39;t have this problem, but I had to ditch Texniscope for [other reasons](https://stackoverflow.com/questions/382608/fonts-in-pdf-documents-screwed).  Is there a way to make Skim always autorefresh, or is there another viewer that gets this right?

&lt;hr&gt;
### ADDED: Mini-tutorial on `latexmk` based on the answer to this question:

1. Get `latexmk` here:  &lt;http://www.phys.psu.edu/~collins/software/latexmk-jcc/&gt;

2. Add the following to your `~/.latexmkrc` file:

        $pdflatex = &#39;pdflatex -interaction=nonstopmode&#39;;

    (For OS X with Skim)

        $pdf_previewer = &quot;open -a /Applications/Skim.app&quot;;


3. While editing your source file, `foo.tex`, run the following in a terminal:

        latexmk -pvc -pdf foo.tex

4. Use [Skim](http://skim-app.sourceforge.net/) or another realtime pdf viewer to view foo.pdf. For Skim, just look at the “Sync” tab in Skim’s preferences and set it up for your editor.  


Voila!  Hitting save on `foo.tex` will now cause `foo.pdf` to refresh without touching a thing.

Don&#39;t make me manually abort a LaTeX compile when there&#39;s an error

How should a latex source code listing look like to produce an output like in known books, for example one for the Spring Framework? I&#39;ve tried with the latex listings package but wasn&#39;t able to produce something that looked as nice as the one below. So I&#39;m primarely interested in the formatting instructions to produce something like the sample below (from Manning&#39;s [sample chapter](http://www.manning.com/walls3/sample-ch01.pdf) for *Spring in Action*):

![From Manning&#39;s Spring in Action][1]


**EDIT**
With the help especially of [Tormod Fjeldsk&#229;r][2] here&#39;s the complete snippet to produce the desired look:

	\usepackage{listings}
	\usepackage{courier}
	\lstset{
		basicstyle=\footnotesize\ttfamily, % Default font
		% numbers=left,              % Location of line numbers
		numberstyle=\tiny,          % Style of line numbers
		% stepnumber=2,              % Margin between line numbers
		numbersep=5pt,              % Margin between line numbers and text
		tabsize=2,                  % Size of tabs
		extendedchars=true,
		breaklines=true,			% Lines will be wrapped
		keywordstyle=\color{red},
		frame=b,
		% keywordstyle=[1]\textbf,
		% keywordstyle=[2]\textbf,
		% keywordstyle=[3]\textbf,
		% keywordstyle=[4]\textbf,   \sqrt{\sqrt{}}
		stringstyle=\color{white}\ttfamily, % Color of strings
		showspaces=false,
		showtabs=false,
		xleftmargin=17pt,
		framexleftmargin=17pt,
		framexrightmargin=5pt,
		framexbottommargin=4pt,
		% backgroundcolor=\color{lightgray},
		showstringspaces=false
	}
	\lstloadlanguages{ % Check documentation for further languages ...
		 % [Visual]Basic,
		 % Pascal,
		 % C,
		 % C++,
		 % XML,
		 % HTML,
		 Java
	}
	% \DeclareCaptionFont{blue}{\color{blue}} 

	% \captionsetup[lstlisting]{singlelinecheck=false, labelfont={blue}, textfont={blue}}
	\usepackage{caption}
	\DeclareCaptionFont{white}{\color{white}}
	\DeclareCaptionFormat{listing}{\colorbox[cmyk]{0.43, 0.35, 0.35,0.01}{\parbox{\textwidth}{\hspace{15pt}#1#2#3}}}
	\captionsetup[lstlisting]{format=listing,labelfont=white,textfont=white, singlelinecheck=false, margin=0pt, font={bf,footnotesize}}

Use it with this in your document:

    \lstinputlisting[label=samplecode, caption=A sample]{sourceCode/HelloWorld.java}


  [1]: http://i.stack.imgur.com/GhMUK.png
  [2]: https://stackoverflow.com/users/27220/tormod-fjeldsk229r

LaTeX source code listing like in professional books

I am creating a report in LaTeX which involves a few tables. I&#39;m stuck on that as my cell data in the table is exceeding the width of the page. Can I somehow wrap the text so that it falls into the next line in the same cell of the table?

Is it somehow related to the table&#39;s width? But as it&#39;s overshooting the page&#39;s width, will it make a difference?

How to wrap text in LaTeX tables?

Impressed by [is-latex-worth-learning-today](https://web.archive.org/web/20130816143747/https://stackoverflow.com/questions/874576/is-latex-worth-learning-today#), and many how-to&#39;s on Windows,

How do you have someone started with LaTeX on Linux?

How do you generate a pdf out of it and give up the OOO Word processer?

Update: 

Thanks to all the suggestions given in here. I was able to create an awesome ppt using the Beamer class: http://github.com/becomingGuru/gids-django-ppt. I found this approach too far better than using powerpoint and the like.

Those interested may checkout the [TEX file](http://github.com/becomingGuru/gids-django-ppt/blob/master/contents.tex), with many custom commands and the [corresponding presentation](http://www.slideshare.net/scorpion032/building-pluggable-web-applications-using-django).

Get started with Latex on Linux

Sometimes, I define new commands such as the following.

    \newcommand{\comment}[1]{\textbf{#1}}
    %\necommand{\comment}[1]{\emph{#1}} 

The above commands enable me to change the style of parts of my code all at once. If I want to generate both of the possible styles, I have to compile my LaTeX document two times each time modifying the source code to enable the desired style.

Is there a way to avoid the source code modification in such cases? That is, can I pass latex some command-line arguments so that I can choose which style to use based on that argument?

Passing command-line arguments to LaTeX document

I recently upgraded my laptop to Snow Leopard, updated TeX to Version 3.1415926 (TeX Live 2011/MacPorts 2011_5), and installed Python 2.7.3.  After all these installs, I ran macport selfupdate and macport upgrade outdated.  However, now when I try to use TeX in matplotlib, I receive the following:

    LaTeX was not able to process the following string:&#39;lp&#39;
    Here is the full report generated by LaTeX: 

    This is pdfTeX, Version 3.1415926-2.3-1.40.12 (TeX Live 2011/MacPorts 2011_5)
     restricted \write18 enabled.  
    entering extended mode (./64a53cc27244d5ee10969789771e33fa.tex
    LaTeX2e &lt;2009/09/24&gt;
    Babel &lt;v3.8l&gt; and hyphenation patterns for english, dumylang, nohyphenation, cz
    ech, slovak, dutch, ukenglish, usenglishmax, basque, french, german-x-2009-06-1
    9, ngerman-x-2009-06-19, german, ngerman, swissgerman, italian, polish, portugu
    ese, spanish, catalan, galician, ukenglish, loaded.
    (/opt/local/share/texmf-texlive-dist/tex/latex/base/article.cls
    Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
    (/opt/local/share/texmf-texlive-dist/tex/latex/base/size10.clo))

    ! LaTeX Error: File `type1cm.sty&#39; not found.

    Type X to quit or &lt;RETURN&gt; to proceed, or enter new name. (Default extension: sty)

         
    l.3 \renewcommand
                 {\rmdefault}{pnc}^^M
    No pages of output.



Similar to [this previous question](https://stackoverflow.com/questions/6082126/tex-in-matplotlib-on-mac-os-x-and-tex-live), I tried setting the path in my python code via:

    os.environ[&#39;PATH&#39;] = os.environ[&#39;PATH&#39;] + &#39;:/opt/local/bin/latex&#39;
since `which latex` yielded `/opt/local/bin/latex`.  However, that didn&#39;t work, with the same error message.  I also tried the path to tex, as well as the example from the previous question.  No change.

I then tried to force possibly missing packages via:

    matplotlib.rcParams[&#39;text.latex.preamble&#39;]=[r&quot;\usepackage{amsmath}&quot;]
however, that also did not work. 

The only way I can get my plots to work is to say `rc(&#39;text&#39;, usetex=False)`, which is not ideal.  Any help would be much appreciated.


Python: Unable to Render Tex in Matplotlib

I have a template, which defines all the typesetting recommendations for thesis, but it uses xelatex for compilation. I want to continue using VS Code with Latex Workshops, question is how to change compiler to xelatex from pdflatex. The last one cause next error log: 

    C:\Users\User\AppData\Local\Programs\MiKTeX 2.9\tex/latex/fontspec\fontspec.sty:45: Fatal Package fontspec Error: The 
    fontspec package requires either XeTeX or
    (fontspec)                      LuaTeX.
    (fontspec)                      
    (fontspec)                      You must change your typesetting engine to,
    (fontspec)                      e.g., &quot;xelatex&quot; or &quot;lualatex&quot;instead of
    (fontspec)                      &quot;latex&quot; or &quot;pdflatex&quot;.


Enable xelatex in Latex Workshops for Visual Studio Code

Emacs has a very nice extension by the name of org-mode.

I would like to be able to easily load CSV files into org-mode without significant grief. All I&#39;ve been able to find is table-import or table-capture, which, simply put, don&#39;t work even approximately well.

Note that part of my issue is text strings with a comma within them.  1,2,3,4 is different than 1,2,&quot;3,4&quot;.

Is there a function out there or a perl script that one could run to transform a csv file into org-mode format?

Thanks!

Emacs: import a CSV into org-mode

In an Emacs Org-mode table, when you have a column full of integers I know you can do `C-c +` followed by `C-y` to paste the sum of the values in the column. I want to know the formula to place in the last row to *always* sum the whole column.

I&#39;ve tried everything. The [docs][1] show you how to sum two columns together but not one.

  [1]: http://www.gnu.org/software/emacs/manual/html_mono/org.html#Tables

Permanently summing a column in an Org-mode table

To archive the DONE tasks i am using

    C-c C-x a
command. The draw back is i have to manually move over the DONE tasks one by one and then archive it.

How to archive all the DONE tasks using a single command.

How to archive all the DONE tasks using a single command

The basic org-mode headers 

    * Heading
    ** Sub-heading
    * Another Heading

get converted to html like this

1. Heading

 1.2 Sub-heading

2. Another Heading

(but imagine them larger and in h1 h2 fonts and sizes). How do you turn this off so that the headings are not numbered in the output html?

How do you remove numbering from headers when exporting from org-mode?

I use Emacs for years, and nowadays, I write a lot of files in org mode, such as notes, plans/conclusions or something else. However but most website support markdown-style instead of org-style. StackOverflow is an example. :)

Can someone tell me the exact difference between these two? Pros and cons?
And which did you choose and why?

Content Type	Original Author	Original Content on Stackoverflow
Question	zpinter	View Question on Stackoverflow
Solution 1 - Emacs	Don W	View Answer on Stackoverflow
Solution 2 - Emacs	zpinter	View Answer on Stackoverflow
Solution 3 - Emacs	justingordon	View Answer on Stackoverflow
Solution 4 - Emacs	Babak	View Answer on Stackoverflow
Solution 5 - Emacs	Will Robertson	View Answer on Stackoverflow
Solution 6 - Emacs	Robbie Morrison	View Answer on Stackoverflow
Solution 7 - Emacs	xji	View Answer on Stackoverflow

Disabling underscore-to-subscript in Emacs Org-Mode export

Emacs Problem Overview

Emacs Solutions

Solution 1 - Emacs

Solution 2 - Emacs

Solution 3 - Emacs

Solution 4 - Emacs

Solution 5 - Emacs

Solution 6 - Emacs

Solution 7 - Emacs

How do I reference a C# keyword in XML documentation?

Ruby: How to make IRB print structure for Arrays and Hashes

Attributions