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Org mode syntax

Table of Contents

Framework Org mode 8
Bug tracker https://github.com/fniessen/refcard-org-mode/issues
Source https://github.com/fniessen/refcard-org-mode

Summary

This is an Org mode document, using the .org extension (supported by GitHub).

Org mode is an easy-to-write plain text formatting syntax for authoring notes, articles, LaTeX documents, books, Web pages, Beamer slide decks and much more!

This is a cheat sheet for Org mode 8 (because of some markup syntax changes since Org mode 7), using ReadTheOrg CSS.

Reading through all the documentation is highly recommended, but for the truly impatient, following are some quick steps to get started.

Reference card

Table of Contents

Document header

Title and author line:

#+TITLE:     Org mode syntax examples
#+AUTHOR:    Fabrice Niessen

My document provides...

It’s a good practice to also include an email line following the author line.

#+EMAIL:     john.doe@example.com

Document settings

Document description

#+DESCRIPTION: This document catalogs a set of tips and tricks for composing documents in Org mode.
#+KEYWORDS:  org-mode, syntax, quick reference, cheat sheet, recommended practices, latex, beamer, html
#+LANGUAGE:  en

Section numbering

#+OPTIONS:   H:4
#+OPTIONS:   num:nil

Table of contents

Set the toc attribute to activate an auto-generated table of contents (limited to its 2 first levels) at the top of document.

#+OPTIONS:   toc:2
#+OPTIONS:   p:t

The ALT_TITLE property allows to set an alternate title (shorter, for example) for a given headline in the table of contents and other running heads.

To locally insert the TOC at some random place, use the #+TOC: headlines [n] feature; for example:

#+TOC: headlines 2

List of figures

#+TOC: figures is not implemented yet in the HMTL backend.

List of tables

#+TOC: tables is already implemented in the HTML backend.

List of equations

Section titles (headings)

* Biggest heading (level 1)

New chapter.
** Bigger heading (level 2)

New section.

*** Big heading (level 3)

New sub-section.

**** Heading (level 4)

New sub-sub-section.

Bigger heading (level 2)

New section.

Big heading (level 3)

New sub-section.

Heading (level 4)

New sub-sub-section.

Numbered headings

You can create numbered headings up to a certain level by setting an option:

#+OPTIONS: H:4

Paragraphs

Normal

A single newline has no effect.
This line is part of the same paragraph.

But an empty line

demarcates paragraphs.

A single newline has no effect. This line is part of the same paragraph.

But an empty line

demarcates paragraphs.

Line breaks

By entering two consecutive backslashes, \\
you can force to break lines
without starting a new paragraph.

By entering two consecutive backslashes,
you can force to break lines without starting a new paragraph.

Horizontal rules

For an horizontal line, insert at least 5 dashes: this is some text above an
horizontal rule
-----
and some text below it.

For an horizontal line, insert at least 5 dashes: this is some text above an horizontal rule


and some text below it.

Text width

One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin. He lay on his armour-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches into stiff sections. The bedding was hardly able to cover it and seemed ready to slide off any moment. His many legs, pitifully thin compared with the size of the rest of him, waved about helplessly as he looked.

Formatting text

Text effects.

Bold and italic

Emphasize (italics), strongly (bold), and /very strongly/ (bold italics).

Emphasize (italics), strongly (bold), and very strongly (bold italics).

Markup elements can be nested:

This is italic text which contains underlined text within it, whereas this is
normal underlined text.

This is italic text which contains underlined text within it, whereas this is normal underlined text.

Markup can span across multiple lines, by default no more than 2:

*This
is not
bold.*

*This is not bold.*

Org mode does not interpret a marker surrounded by alphanumeric characters as an emphasis marker. So, you can’t (easily) emphasize just part of a word:

Not feas*ible*.

Not feas*ible*.

Monospace, superscript and subscript

Other elements to use sparingly are:

- monospaced typewriter font for inline code
- monospaced typewriter font for verbatim text
- deleted text (vs. inserted text)
- text with superscript, such as 210
- text with subscript, such as H2O
  • monospaced typewriter font for inline code
  • monospaced typewriter font for verbatim text
  • deleted text (vs. inserted text)
  • text with superscript, such as 210
  • text with subscript, such as H2O

Smart punctuation

If the XXX option is specified, Org mode will produce typographically correct output, converting straight quotes to curly quotes, --- to em-dashes, -- to en-dashes, and ... to ellipses.

Lists

Org markup allows you to create bulleted or numbered lists. It allows any combination of the two list types.

Unordered lists

Itemized lists are marked with bullets. Create them with a minus or a plus sign.

They are convenient to organize data, and make the document prettier, and easier to read.

- Item with some lengthy text wrapping hopefully across several lines. We add
  a few words to really show the line wrapping.
- Bullet.
  + Bullet.
    * Bullet.
  • Item with some lengthy text wrapping hopefully across several lines. We add a few words to really show the line wrapping.
  • Bullet.
    • Bullet.
      • Bullet.

Checklists

- [X] Checked.
- [-] Half-checked.
- [ ] Not checked.
- Normal list item.
  • ☑ Checked.
  • ☐ Half-checked.
  • ☐ Not checked.
  • Normal list item.

Ordered lists

Enumerated lists are marked with numbers or letters:

1. Arabic (decimal) numbered list item. We add a few words to show the line
   wrapping.
   A. Upper case alpha (letter) numbered list item.
      a. Lower alpha.
      b. Lower alpha.
   B. Upper alpha.
2. Number.
  1. Arabic (decimal) numbered list item. We add a few words to show the line wrapping.
    1. Upper case alpha (letter) numbered list item.
      1. Lower alpha.
      2. Lower alpha.
    2. Upper alpha.
  2. Number.

You can have ordered lists with jumping numbers:

2. [@2] We start with point number 2.
3. Automatically numbered item.
  1. We start with point number 2.
  2. Automatically numbered item.

Definition lists

Labeled, multi-line lists.

- First term to define ::
     Definition of the first term. We add a few words to show the line wrapping,
     to see what happens when you have long lines.

- Second term ::
     Explication of the second term with inline markup.

     In many paragraphs.
First term to define
Definition of the first term. We add a few words to show the line wrapping, to see what happens when you have long lines.
Second term
Explication of the second term with inline markup.

In many paragraphs.

Separating lists

Adjacent lists sometimes like to fuse. To force the start of a new list, offset the two lists by an empty line comment:

- apples
- oranges
- bananas

# Comment.

- carrots
- tomatoes
- celery
  • apples
  • oranges
  • bananas
  • carrots
  • tomatoes
  • celery

Tables

Tables are one of the most refined areas of the Org mode syntax. They are very easy to create and to read.

Simple table

| Cell in column 1, row 1 | Cell in column 2, row 1 |
| Cell in column 1, row 2 | Cell in column 2, row 2 |
Cell in column 1, row 1 Cell in column 2, row 1
Cell in column 1, row 2 Cell in column 2, row 2

Org tables have cells of at most one line long: there is no such thing as a multi-line table cell in Org.

Column formatting

Columns are automatically aligned:

  • Number-rich columns to the right, and
  • String-rich columns to the left.

Table with aligned cells

If you want to override the automatic alignment, use <r>, <c> or <l>.

#+CAPTION: Table with aligned columns
|          <r> | <c>          | <l>          |
|            1 | 2            | 3            |
|        Right | Center       | Left         |
| xxxxxxxxxxxx | xxxxxxxxxxxx | xxxxxxxxxxxx |
Table 1: Table with aligned columns
1 2 3
Right Center Left
xxxxxxxxxxxx xxxxxxxxxxxx xxxxxxxxxxxx

Table with column size adjusted

Header row

You can create tables with an header row (by using an horizontal line of dashes to separate it from the rest of the table).

#+CAPTION: Table with an header row
| Name of column 1 | Name of column 2 | Name of column 3 |
|------------------+------------------+------------------|
| Top left         | Top middle       |                  |
|                  |                  | Right            |
| Bottom left      | Bottom middle    |                  |
Table 2: Table with an header row
Name of column 1 Name of column 2 Name of column 3
Top left Top middle  
    Right
Bottom left Bottom middle  

A very long table

To test “sticky table headers”…

Name of column 1 Name of column 2 Name of column 3
Top left Top middle  
2    
3    
4    
5    
6    
7    
8    
9    
10    
11    
12    
13    
14    
15   Right
16    
17    
18    
19    
20    
21    
22    
23    
24    
25    
26    
27    
28    
29    
Bottom left Bottom middle  

Table placement

#+ATTR_LATEX: :center nil
| a | b |
| 1 | 2 |
a b
1 2

XXX Different from the following:

| a | b |
| 1 | 2 |
a b
1 2

Align tables on the page

Left

Here is a table on the left side:

#+LATEX: \noindent
#+ATTR_LATEX: :center nil
| a | b | c |
|---+---+---|
| 1 | 2 | 3 |
| 4 | 5 | 6 |
#+LATEX: \hfill
a b c
1 2 3
4 5 6

The noindent just gets rid of the indentation of the first line of a paragraph which in this case is the table. The hfill adds infinite stretch after the table, so it pushes the table to the left.

Center

Here is a centered table:

| a | b | c |
|---+---+---|
| 1 | 2 | 3 |
| 4 | 5 | 6 |
a b c
1 2 3
4 5 6

Right

And here’s a table on the right side:

#+LATEX: \hfill
#+ATTR_LATEX: :center nil
| a | b | c |
|---+---+---|
| 1 | 2 | 3 |
| 4 | 5 | 6 |
a b c
1 2 3
4 5 6

Here the hfill adds infinite stretch before the table, so it pushes the table to the right.

Table size

#+ATTR_HTML: :width 100%
| Cell in column 1, row 1 | Cell in column 2, row 1 |
| Cell in column 1, row 2 | Cell in column 2, row 2 |
Cell in column 1, row 1 Cell in column 2, row 1
Cell in column 1, row 2 Cell in column 2, row 2

CSV

You can fill a table from a CSV file using R commands.

Images

You can insert image files of different formats to a document:

  HTML PDF
gif yes  
jpeg yes  
png yes  
bmp (depends on browser support)  

Inline picture

#+caption: Org mode logo
file:images/org-mode-unicorn.png

org-mode-unicorn.png

Figure 2: Org mode logo

Click to see the Unicorn picture.

Click to see the Unicorn picture.

Image alignment (using positioning)

Books usually align/float images on the right/left of the contents.

Image is left aligned

Image is right aligned

Image is centered

Image attributes and values

XXX Available HTML image tags include …

Attribute Value(s)
:alt Alternate text
:height  
:width User defined size in pixels
:align  
:border  
:bordercolor  
:hspace  
:vspace  
:title User defined text
#+ATTR_LaTeX: :width 0.25\linewidth
file:images/org-mode-unicorn.png

org-mode-unicorn.png

Place images side by side: XXX

Figures

To define images that will be treated as book illustrations (figures) and automatically labeled and numbered, use XXX.

Videos

Videos can’t be added directly.

Though, you can add an image with a link to the video like this:

bigblow.png

Admonitions

Admonitions (contextual backgrounds) are statements taken out of the content’s flow and labeled with a title.

Common admonitions are:

  1. note
  2. warning
  3. tip
  4. caution
  5. important

(Most themes style only note and warning specially.)

Base admonitions

Note

A note box is displayed as follows:

#+begin_note
This is a useful note.
#+end_note

This is a useful note.

Warning

A warning box is displayed as follows:

#+begin_warning
Be careful!  Check that you have...
#+end_warning

Be careful! Check that you have…

Tip

A tip box is displayed as follows:

#+begin_tip
Try doing it this way...
#+end_tip

Try doing it this way…

Caution

#+begin_caution
Caution
#+end_caution

Caution

Important

#+begin_important
Important
#+end_important

Important

Additional admonitions

Attention

#+begin_attention
Attention
#+end_attention

Attention

Hint

#+begin_hint
Hint
#+end_hint

Hint

Error

#+begin_error
Error
#+end_error

Error

Danger

#+begin_danger
Danger
#+end_danger

Danger

SeeAlso (Sphinx additional)

#+begin_seealso
- Apples ::
     A kind of fruit.
#+end_seealso
Apples
A kind of fruit.

Todo admonition

Simple box (“inline task”):

*************** TODO Do this task
Description of inline task.
*************** END

* TODO Do this task Description of inline task.

END
nil
TODO Do this task

Description of inline task.

or:

*************** WAIT [#B] Do also this other task                        :phone:*************** END

* WAIT [#B] Do also this other task :phone:

END
nil

Admonitiontodo

Alternatively to the inline tasks (for creating “TODO” annotations), if you want such notes not to show up in the published version, drawers may also do the job, e.g.:

:FIXME: …

:END:

You can then control what drawers are exported with org-export-with-drawers (or per document with d OPTIONS item).

Centered text

#+begin_left
This text is \\
aligned to the left!
#+end_left

#+begin_center
This text is \\
centered!
#+end_center

#+begin_right
This text is \\
aligned to the right!
#+end_right

This text is
aligned to the left!

This text is
centered!

This text is
aligned to the right!

Sidebar

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

#+begin_sidebar
Org mode was first released by Carsten Dominik in 2004 as an outlining and
project planning tool.  Further development turned it into a general tool that
can be used to author professional documents like LaTeX.
#+end_sidebar

Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac
turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor
sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies
mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien
ullamcorper pharetra. Vestibulum erat wisi...

Phasellus ut libero. Nulla in libero non enim tristique sollicitudin. Ut
tempor. Phasellus pellentesque augue eget ante. Mauris malesuada. Donec sit
amet diam sit amet dolor placerat blandit. Morbi enim purus, imperdiet in,
molestie sit amet, pellentesque eu, mauris. In vel erat vel ipsum bibendum
commodo. Curabitur accumsan. Nam sed metus. Etiam tristique bibendum justo.

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum tortor quam, feugiat vitae, ultricies eget, tempor sit amet, ante. Donec eu libero sit amet quam egestas semper. Aenean ultricies mi vitae est. Mauris placerat eleifend leo. Quisque sit amet est et sapien ullamcorper pharetra. Vestibulum erat wisi…

Phasellus ut libero. Nulla in libero non enim tristique sollicitudin. Ut tempor. Phasellus pellentesque augue eget ante. Mauris malesuada. Donec sit amet diam sit amet dolor placerat blandit. Morbi enim purus, imperdiet in, molestie sit amet, pellentesque eu, mauris. In vel erat vel ipsum bibendum commodo. Curabitur accumsan. Nam sed metus. Etiam tristique bibendum justo.

Example

You can have example blocks.

: 10/17/97   9:04         <DIR>    bin
: 10/16/97  14:11         <DIR>    DOS
: 10/16/97  14:46         <DIR>    TEMP
: 10/16/97  14:37         <DIR>    WINNT
: 10/16/97  14:25             119  AUTOEXEC.BAT
:  2/13/94   6:21          54,619  COMMAND.COM
10/17/97   9:04         <DIR>    bin
10/16/97  14:11         <DIR>    DOS
10/16/97  14:46         <DIR>    TEMP
10/16/97  14:37         <DIR>    WINNT
10/16/97  14:25             119  AUTOEXEC.BAT
 2/13/94   6:21          54,619  COMMAND.COM

or

#+begin_example
10/17/97   9:04         <DIR>    bin
10/16/97  14:11         <DIR>    DOS
10/16/97  14:46         <DIR>    TEMP
10/16/97  14:37         <DIR>    WINNT
10/16/97  14:25             119  AUTOEXEC.BAT
 2/13/94   6:21          54,619  COMMAND.COM
#+end_example
10/17/97   9:04         <DIR>    bin
10/16/97  14:11         <DIR>    DOS
10/16/97  14:46         <DIR>    TEMP
10/16/97  14:37         <DIR>    WINNT
10/16/97  14:25             119  AUTOEXEC.BAT
 2/13/94   6:21          54,619  COMMAND.COM

Prose excerpts

Quote

Use the quote block for content that doesn’t require the preservation of line breaks.

#+begin_quote
Let us change our traditional attitude to the construction of programs:
Instead of imagining that our main task is to instruct a computer what to do,
let us concentrate rather on explaining to human beings what we want a
computer to do.

The practitioner of literate programming can be regarded as an essayist, whose
main concern is with exposition and excellence of style. Such an author, with
thesaurus in hand, chooses the names of variables carefully and explains what
each variable means. He or she strives for a program that is comprehensible
because its concepts have been introduced in an order that is best for human
understanding, using a mixture of formal and informal methods that reinforce
each other.

-- Donald Knuth
#+end_quote

Let us change our traditional attitude to the construction of programs: Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do.

The practitioner of literate programming can be regarded as an essayist, whose main concern is with exposition and excellence of style. Such an author, with thesaurus in hand, chooses the names of variables carefully and explains what each variable means. He or she strives for a program that is comprehensible because its concepts have been introduced in an order that is best for human understanding, using a mixture of formal and informal methods that reinforce each other.

– Donald Knuth

A short one:

#+begin_quote
Everything should be made as simple as possible,
but not any simpler. -- Albert Einstein
#+end_quote

Everything should be made as simple as possible, but not any simpler. – Albert Einstein

Verse

In a verse environment, there is an implicit line break at the end of each line, and indentation is preserved:

#+begin_verse
Everything should be made as simple as possible,
but not any simpler. -- Albert Einstein
#+end_verse

Everything should be made as simple as possible,
but not any simpler. – Albert Einstein

Typically used for quoting passages of an email message:

#+begin_verse
>>  The meeting has been postponed to next Friday.
>
> Has the deadline for the report been moved too?

Yes.  And chekout http://www.doodle.com/ for rescheduling the meeting.

In the text body,
   indentation is
preserved.
#+end_verse

>> The meeting has been postponed to next Friday.
>
> Has the deadline for the report been moved too?

Yes. And chekout http://www.doodle.com/ for rescheduling the meeting.

In the text body,
   indentation is
preserved.

Block quote with optional attribution line

epigraph

Block quotes with their own class attribute

highlights

pull-quote

Blockquote

Non-breaking space

Insert the Unicode character 00A0 to add a non-breaking space.

FIXME Or add/use an Org entity? Or use tilde?

Comments

It's possible to add comments in the document.

# This Org comment here won't be displayed.

It’s possible to add comments in the document.

Org doesn’t support comments inside paragraphs since a comment ends a paragraph. However, you can mimic inline comments with export snippets, e.g., @@comment:...@@.

If you have tables (for example) that you want to ignore during export, one possibility is to use comment blocks or :noexport: subtrees. Another possibility is to use non-exported drawers (see #+OPTIONS: d:).

If you want to ignore that part only during export, but still want to use keep it active in the buffer, I suggest to use a drawer, with an appropriate `org-export-with-drawers’ value, e.g.,

#+OPTIONS: d:(not "NOEXPORT")

Substitutions

General replacements

#+MACRO: longtext this very very long text

Insert {{{longtext}}} wherever required.

Insert this very very long text wherever required.

Styled references

#+MACRO: color @@html:<span style="color: $1">$2</span>@@

{{{color(blue, This text is colored in blue.)}}}

{{{color(red, This other text is in red.)}}}

This text is colored in blue.

This other text is in red.

Find more macros on GitHub.

Special characters

We also use substitutions to include some of the widely used Unicode characters (like ©, converted from text characters to its typographically correct entity).

Accents

- \Agrave \Aacute
  • À Á

Punctuation

- Dash: \ndash \mdash
- Marks: \iexcl \iquest
- Quotations: \laquo \raquo
- Miscellaneous: \para \ordf
  • Dash: – —
  • Marks: ¡ ¿
  • Quotations: « »
  • Miscellaneous: ¶ ª

Commercial symbols

- Property marks: \copy \reg
- Currency: \cent \EUR \yen \pound
  • Property marks: © ®
  • Currency: ¢ € ¥ £

Greek characters

The Greek letters \alpha, \beta, and \gamma are used to denote angles.

The Greek letters α, β, and γ are used to denote angles.

Math characters

- Science: \pm \div
- Arrows: \to \rarr \larr \harr \rArr \lArr \hArr
- Function names: \arccos \cos
- Signs and symbols: \bull \star
  • Science: ± ÷
  • Arrows: → → ← ↔ ⇒ ⇐ ⇔
  • Function names: arccos cos
  • Signs and symbols: • *

Misc

- Zero-width non-joiner: \zwnj
# Smilies: \smiley \sad
- Suits: \clubs \spades
  • Zero-width non-joiner: ‌
  • Suits: ♣ ♠

You can insert a real “zero-width space” Unicode character by pressing C-x 8 RET zero width space RET or C-x 8 RET 200b RET.

Source code

Inline code

Reference code like variables or functions inline.

Reference code like variables or functions inline.

You can also evaluate code inline as follows: 1 + 1 is #+BEGIN_SRC R 1 + 1 #+END_SRC 2.

Code blocks (with syntax highlighting)

The source code blocks support syntax highlighting:

/*
 * Application that displays a "Hello" message to the standard output.
 */
int main(int arc, char **argv)
{
  printf("Hello, %s!\n", (argc>1) ? argv[1] : "World");
  return 0;
}
(defvar hello "Hello")

(defun hello (name &optional greeting)
  (message "%s %s" (or greeting "Hello") name))

(setq tab-width 4)

You need htmlize.el in your load-path, for the HTML export.

Source mode

The following language strings are currently recognized:

Awk, C, R, Asymptote, Calc, Clojure, CSS, Ditaa, Dot, Emacs Lisp, Fortran, Gnuplot, Haskell, IO, Java, Javascript, LaTeX, Ledger, Lilypond, Lisp, Makefile, Maxima, Matlab, Mscgen, Ocaml, Octave, Org, Perl, Pico Lisp, PlantUML, Python, Ruby, Sass, Scala, Scheme, Screen, Shell Script, Shen, Sql, Sqlite.

Line break

Code block with long lines:

testing testing testing testing testing testing testing testing testing testing
0        1         2         3         4         5         6         7         8         9
123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456

For PDF (LaTeX), one solution is to surround the code block such as:

print("This block is in scriptsize")
This block is in scriptsize

Line numbers

Both in example and in src snippets, you can add a -n switch to the end of the begin line to get the lines numbered:

1: (defun org-xor (a b)
2:   "Exclusive or."

If you use a +n switch, the numbering from the previous numbered snippet will be continued in the current one:

3:   (if a (not b) b))

Callouts

In literal examples, Org will interpret strings like (ref:name) as labels, and use them as targets for special hyperlinks like [[(name)]] (i.e., the reference name enclosed in single parenthesis). In HTML, hovering the mouse over such a link will remote-highlight the corresponding code line, which is kind of cool.

You can also add a -r switch which removes the labels from the source code. With the -n switch, links to these references will be labeled by the line numbers from the code listing, otherwise links will use the labels with no parentheses. Here is an example:

1: (save-excursion                  ;
2:   (goto-char (point-min)))       ;

In line 1, we remember the current position. Line 2 jumps to point-min.

Math

You can embed LaTeX math formatting in Org mode files.

Inline math expressions

For inline math expressions, use the parentheses notation \(...\):

The formula \(a^2 + b^2 = c^2\) has been discovered by Pythagoras.

Let \(a=\sin(x) + \cos(x)\). Then \(a^2 = 2\sin(x)\cos(x)\) because \(\sin^2x +
\cos^2x = 1\).

The formula \(a^2 + b^2 = c^2\) has been discovered by Pythagoras.

Let \(a=\sin(x) + \cos(x)\). Then \(a^2 = 2\sin(x)\cos(x)\) because \(\sin^2x + \cos^2x = 1\).

It’s not advised to use the $...$ construct (both for Org and for MathJax).

Don’t forget that $ is also a valid currency symbol!

Math expressions in display mode

For mathematical expressions which you want to make stand out, centered on their own lines, use \[...\]:

The Euler theorem:

\[
\int_0^\infty e-x^2 dx = {{\sqrt{\pi}} \over {2}}
\]

LaTeX allows to inline such \[...\] constructs (quadratic formula):
\[ \frac{-b \pm \sqrt{b^2 - 4 a c}}{2a} \]

The Euler theorem:

\[ \int_0^\infty e^{-x^2} dx = {{\sqrt{\pi}} \over {2}} \]

LaTeX allows to inline such \[...\] constructs (quadratic formula): \[ \frac{-b \pm \sqrt{b^2 - 4 a c}}{2a} \]

Double dollar signs ($$) should not be used.

\[
\left( \int0\infty \frac{\sin x}{\sqrt x}\,\mathrm{d}x \
right)2 -
\prodk=1\infty \frac{4k2}{4k2-1} +
\frac{\lambda}{2n}\sumk=1 ^{n} \thetak ^{2} xn = 0
\]

\[ \left( \int_{0}^{\infty} \frac{\sin x}{\sqrt x}\,\mathrm{d}x \ right)^{2} - \prod_{k=1}^{\infty} \frac{4k^{2}}{4k^{2}-1} + \frac{\lambda}{2n}\sum_{k=1} ^{n} \theta_{k} ^{2} x^{n} = 0 \]

The equation may be wrong, but it’s a nice one!

Equation numbers

Differently from $...$ and \(...\), an equation environment produces a numbered equation to which you can add a label and reference the equation by (label) name in other parts of the text. This is not possibly with unnumbered math environments ($$, …).

The Pythagoras theorem:

#+name: pythag
\begin{equation}
a^2 + b^2 = c^2
\end{equation}

See equation pythag.

# The sinus theorem can be written as the equation:
#
# \begin{equation}
# \label{eqn:sinalpha}
# \frac{\sin\alpha}{a}=\frac{\sin\beta}{b}
# \end{equation}
#
# See equation eqn:sinalpha.

The Pythagoras theorem:

\begin{equation} a^2 + b^2 = c^2 \end{equation}

See equation 1.

Only captioned equations are numbered.

Other alternatives: use

  • \begin{equation*} or
  • \begin{displaymath} (= the verbose form of the \[...\] construct).

M-q does not fill those.

Miscellaneous effects

Include Org files

You can include another Org file and skip its title by using the :lines argument to #+INCLUDE:

#+INCLUDE: "chapter1.org" :lines "2-"

File inclusion, through INCLUDE keywords, is an export-only feature.

Raw HTML

You can include raw HTML in your Org documents and it will get kept as HTML when it’s exported.

Text can be preformatted (in a fixed-width font).

It is especially useful for more advanced stuff like images or tables where you need more control of the HTML options than Org mode actually gives you.

Similarly, you can incorporate JS or do anything else you can do in a Web page (such as importing a CSS file).

Native DIV blocks

You can create named classes (to get style control from your CSS) with:

#+begin_myclass
This text is wrapped in a myclass DIV...
#+end_myclass

You can also add interactive elements to the HTML such as interactive R plots.

Finally, you can include an HTML file verbatim (during export) with:

#+INCLUDE: "file.html" export html

Don’t edit the exported HTML file!

Raw LaTeX

You can also use raw LaTeX. XXX

Text can be preformatted (in a fixed-width font).

Footnotes 

It is possible to define named footnotes[fn:myfootnote], or ones with automatic
anchors[fn:2].

It is possible to define named footnotes1, or ones with automatic anchors2. It is possible to define named footnotes1, or ones with automatic anchors2.

Useful extensions

Todo extension

Dates

Timestamps: [2014-01-16 Thu] and <2014-01-16 Thu>.

TODO We need to achieve…

DONE Buy GTD book   online

  • State “TODO” -> “DONE” [2014-01-16 Thu 09:52]

By default, DONE actions will be collapsed.

Note that I should probably implement that default behavior only for ARCHIVE’d items.

TODO Read GTD book

SCHEDULED: <2014-09-11 Thu>

By default, all (active) entries will be expanded at page load, so that their contents is visible.

That can be changed by adding such a line (into your Org document):

#+HTML_HEAD: <script> var HS_STARTUP_FOLDED = true; </script>

TODO Apply GTD methodoloy

DEADLINE: <2014-12-01 Mon>

This section will be collapsed when loading the page because the entry has the value hsCollapsed for the property :HTML_CONTAINER_CLASS:.

Powerful, no?

Some note   computer write

You can add tags to any entry, and hightlight all entries having some specific tag by clicking on the buttons made accessible to you in the “Dashboard”.

Weekly review   computer

Now, you can even make your weekly review in the HTML export… Press the r key to start entering the “review mode” where all but one active entry are collapsed, so that you can really focus on one item at a time!

Bigblow extension

The string fixme (in upper case) gets replaced by a “Fix Me!” image:

FIXME Delete this...

FIXME Delete this…

Graphs with Graphviz

To enable the Graphviz extension, we have to add it to the extensions list in the org-babel-load-languages variable.

(add-to-list 'org-babel-load-languages '(dot . t))
(org-babel-do-load-languages 'org-babel-load-languages org-babel-load-languages)

It uses directly the dot command to process DOT language.

Undirected

#+begin_src dot :file images/graph.png :cmdline -Tpng
graph foo {
        "bar" -- "baz";
}
#+end_src
graph foo {
        "bar" -- "baz";
}

graph.png

Directed

digraph foo {
        "bar" -> "baz";
}

digraph.png

Graphs with R

The output from the execution of programs, scripts or commands can be inserted in the document itself, allowing you to work in the reproducible research mindset.

To enable the Graphviz extension, we have to add it to the extensions list in the org-babel-load-languages variable.

(add-to-list 'org-babel-load-languages '(R . t)) ; Requires R and ess-mode.
(org-babel-do-load-languages 'org-babel-load-languages org-babel-load-languages)

It uses directly the R command to process R language.

Example

Data to be charted:

Month Degrees
01 3.8
02 4.1
03 6.3
04 9.0
05 11.9
06 15.1
07 17.1
08 17.4
09 15.7
10 11.8
11 7.7
12 4.8

Code:

plot(data, type="b", bty="l", col=c("#ABD249"), las=1, lwd=4)
grid(nx=NULL, ny=NULL, col=c("#E8E8E8"), lwd=1)
legend("bottom", legend=c("Degrees"), col=c("#ABD249"), pch=c(19))

The resulting chart:

Rplot.png

Citations

Cross-referenced to bibliography.

Appendix

Special sections.

Index

Index (or list of acronyms).

  • Write index entries

Note that multi-entry terms generate separate index entries.

  • Place the index at the desired location
  • Produce the index by updating org-latex-pdf-process

Bibliography

The bibliography…

  • Eric Steven Raymond. The Art of Unix Programming. Addison-Wesley. ISBN 0-13-142901-9.

Glossary

Glossaries are optional. Glossaries entries are an example of definition lists.

A glossary term
The corresponding (indented) definition.
A second glossary term
The corresponding (indented) definition.

Contributing

Issues

Report issues and suggest features and improvements on the GitHub issue tracker.

Patches

I love contributions! Patches under any form are always welcome!

Donations

If you like the refcard-org-mode project, you can show your appreciation and help support future development by making a donation through PayPal.

Regardless of the donations, refcard-org-mode will always be free both as in beer and as in speech.

License

Copyright (C) 2014-2017 Fabrice Niessen.

Author: Fabrice Niessen
Keywords: org-mode refcard

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

:license-gpl-blue.svg btn_donate_LG.gif

Footnotes:

1

Extensively used in large documents.

2

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Author: Fabrice Niessen

Emacs 25.1.1 (Org mode 8.2.10)

Validate