How to edit a page

Start your sections as follows:

• Start with a second-level heading (==); don't use first-level headings (=) (consider the article heading to be the first-level heading if you like).
• If possible, place subsections in an appropriate order. If listing countries, place them in alphabetical order rather than, say, relative to population of OECD countries or some random order.
• A Table of Contents will automatically be added to an article that has four or more sections.

==New section==
===Subsection===
====Sub-subsection====

A single newline generally has no effect on the layout. These can be used to separate sentences within a paragraph. Some editors find that this aids editing and improves the function diff (used internally to compare different versions of a page).

But an empty line starts a new paragraph.

• When used in a list, a newline does affect the layout (see below).

A single [http://en.wikipedia.org/wiki/newline]
generally has no effect on the layout. 
These can be used to separate
sentences within a paragraph.
Some editors find that this aids editing
and improves the function ''diff'' 
(used internally to compare
different versions of a page).

But an empty line
starts a new paragraph.

You can break lines
without starting a new paragraph.

• Please use this sparingly.
• Close markup between lines, do not start a link or italics or bold on one line and close it on the next.

You can break lines<br/>
without starting a new paragraph.

• It's easy to create a list:
  • Start every line with a star (asterisk).
    • More stars means deeper levels.
      • A newline in a list

marks the end of a list item.

• An empty line starts a new list.

* It's easy to create a list:
** Start every line with a star.
*** More stars means deeper levels.
**** A newline in a list
marks the end of a list item.

* An empty line starts a new list.

1. Numbered lists are also good
   1. very organized
   2. easy to follow
      1. easier still

# Numbered lists are also good
## very organized
## easy to follow
### easier still

Definition list 

list of definitions

item 

the item's definition

another item

the other item's definition

• Begin with a semicolon. One item per line; a newline can appear before the colon, but using a space before the colon improves parsing.

; Definition list : list of definitions
; item : the item's definition
; another item
: the other item's definition

• You can even create mixed lists
  1. and nest them
     • like this

       can I mix definition list as well?

       yes

       how?

       it's easy as

       • a
       • b
       • c

* You can even create mixed lists
*# and nest them
*#* like this
*#*; can I mix definition list as well?
*#*: yes
*#*; how?
*#*: it's easy as
*#*:* a 
*#*:* b
*#*:* c

A colon indents a line or paragraph.

A manual newline starts a new paragraph.

• This is primarily for displayed material, but is also used for discussion on page Talk pages.

: A colon indents a line or paragraph.
A manual newline starts a new paragraph.

When there is a need for separating a block of text

The blockquote command will indent both margins when needed instead of the left margin only as the colon does.

This is useful for (as the name says) inserting blocks of quoted (and cited) text.

<blockquote>
The '''blockquote''' command will indent 
both margins when needed instead of the 
left margin only as the colon does.  
</blockquote>

(See formula on right):

• This is useful for:
  • pasting preformatted text;
  • algorithm descriptions;
  • program source code;
  • ASCII art;
  • chemical structures;
• WARNING: If you make it wide, you force the whole page to be wide and hence less readable, especially for people who use lower resolutions. Never start ordinary lines with spaces.

 IF a line starts with a space THEN
     it will be formatted exactly
         as typed;
     in a fixed-width font;
     lines will not wrap;
 END IF

• Please note the American spelling of "center".

<center>Centered text.</center>

A horizontal dividing line: this is above it

and this is below it.

• Mainly useful for
  • disambiguation - but to be used sparsely, only when separating completely different, unrelated (groups of) meanings
  • separating threads on Talk pages.

A [http://en.wikipedia.org/wiki/horizontal_dividing_line horizontal dividing line]:
this is above it
----
and this is below it.

The Wiimote uses Bluetooth to communicate with the Wii.

• A link to another Wikipedia article.
• Internally, the first letter of the target page is automatically capitalized and spaces are represented as underscores (typing an underscore in the link has the same effect as typing a space, but is not recommended).
• Thus the link above is to the URL wiili.org/Wiimote, which is the Wikipedia article with the name "Wiimote". See also Wikipedia:Canonicalization.

The [[Wiimote]] uses Bluetooth to communicate with the Wii.

The Wii Remote has 4 LEDs on the bottom.

• Same target, different name.
• This is a [1].
• The "piped" text must be placed first, then the text that will be displayed second.

The [[Wiimote|Wii Remote]] has 4 LEDs on the bottom.

The Wii Remote has 4 LEDs on the bottom.

Up to 4 Wiimotes can be used at once.

• Endings are blended into the link.
• Preferred style is to use this instead of a piped link, if possible.
• Blending can be suppressed by using <nowiki></nowiki> tags, which may be desirable in some instances. Example: a Wiimotes.

The [[Wiimote|Wii Remote]] has 4 LEDs on the bottom.

Up to 4 [[Wiimote]]s can be used at once.

[[Wiimote]]<nowiki>s
</nowiki>

Special:Search.

• A link to another namespace.

See the 
[[Special:Search]].

Main Page#Latest news is a link to a section within another page.

#Links and URLs is a link to another section on the current page.

• The part after the number sign (#) must match a section heading on the page. Matches must be exact in terms of spelling, case, and punctuation. Links to non-existent sections are not broken; they are treated as links to the top of the page.
• Identifiers may be created by attaching an id="..."> attribute to almost any HTML element. This doesn't work with legacy browsers.
• Include "| Link title" to create a stylish link-title.

[[Main Page#Latest news]] is a link
to a section within another page. 

[[#Links and URLs]] is a link to
another section on the current page.

[[#example]] is a link to an anchor
that was created using
<div id="example">an id attribute</div>
</div>

Automatically hide stuff in parentheses: kingdom.

Automatically hide namespace: Search.

Or both: Manual of Style

But not: [[Main Page#Using this site|]]

• The server fills in the part after the pipe character (|) when you save the page. The next time you open the edit box you will see the expanded piped link. When preview previewing your edits, you will not see the expanded form until you press Save and Edit again. The same applies to links to sections within the same page (see previous entry).

Automatically hide stuff
in parentheses:
[[kingdom (biology)|]].

Automatically hide namespace: 
[[Special:Search|Search]]. 

Or both:
[[Wikipedia:
Manual of Style (headings)|]]

But not:
[[Main Page#Using this site|]]

See Pipe Trick for details.

Wii is a page that does not exist yet.

• You can create it by clicking on the link.
• To create a new page:
  1. Create a link to it on some other (related) page.
  2. Save that page.
  3. Click on the link you just made. The new page will open for editing.
• For more information, see How to start a page and check out Wikipedia's naming conventions.
• Please do not create a new article without linking to it from at least one other article.

[[Wii]]
is a page 
that does not exist yet.

How to edit a page is this page.

• Self links appear as bold text when the article is viewed.
• Do not use this technique to make the article name bold in the first paragraph; see the Manual of Style.

[[How to edit a page]]
is this page.

When adding a comment to a Talk page, you should sign it by adding three tildes to add your user name:

John Doe

or four to add user name plus date/time:

John Doe 00:18, Nov 19, 2004 (UTC)

Five tildes gives the date/time alone:

00:18, Nov 19, 2004 (UTC)

• The first two both provide a link to your user page.

When adding a comment
to a Talk page,you should 
sign it by adding three tildes
to add your user name:
: ~~~
or four for user name plus 
date/time:
: ~~~~
Five tildes gives the date/time
 alone:
: ~~~~~

• Redirect one article title to another by placing a directive like the one shown to the right on the first line of the article (such as at a page titled "Wii Remote").
• Note that, while it is possible to link to a section, it is not possible to redirect to a section. For example, "#REDIRECT [[Wiimote#Batteries]]" will redirect to the Wiimote page, but not to any particular section on it. This feature may be implemented in the future - see feature request 218 (it appears as a bug).

#REDIRECT [[Wiimote]]

• Link to a page on the same subject in another language by using a link of the form: [[language code:Title]].
• It does not matter where you put these links while editing as they will always show up in the same place when you save the page, but placement at the end of the edit box is recommended.

[[fr:Main Page]]

What links here and Related changes pages can be linked as: Special:Whatlinkshere/Wiimote and Special:Recentchangeslinked/Wiimote

'''What links here''' and
'''Related changes'''
pages can be linked as:
[[Special:Whatlinkshere/
Wiimote]]
and
[[Special:Recentchangeslinked/
Wiimote]]

A user's Contributions page can be linked as: Special:Contributions/UserName or Special:Contributions/192.0.2.0

A user's '''Contributions''' page
can be linked as:
[[Special:Contributions/UserName]]
or
[[Special:Contributions/192.0.2.0]]

• To put an article in a Wikipedia:Category, place a link like the one to the right anywhere in the article. As with interlanguage links, it does not matter where you put these links while editing as they will always show up in the same place when you save the page, but placement at the end of the edit box is recommended.

[[Category:Howto]]

• To link to a Wikipedia:Category page without putting the article into the category, use an initial colon (:) in the link.

[[:Category:Howto]]

Three ways to link to external (non-wiki) sources:

1. Bare URL: http://www.nupedia.com/ (bad style)
2. Unnamed link: [2] (only used within article body for footnotes)
3. Named link: Nupedia

See [3] for the list of shortcuts.

• Square brackets indicate an external link. Note the use of a space (not a pipe) to separate the URL from the link text in the "named" version.
• In the URL, all symbols must be among:
  A-Z a-z 0-9 . _ \ / ~ % - + & # ? ! = ( ) @
• If a URL contains a character not in this list, it should be encoded by using a percent sign (%) followed by the hex code of the character, which can be found in the table of ASCII printable characters. For example, the caret character (^) would be encoded in a URL as %5E.
• If the "named" version contains a closing square bracket "]", then you must use the HTML special character syntax, i.e. &#93; otherwise the MediaWiki software will prematurely interpret this as the end of the external link.
• There is a class that can be used to remove the arrow image from the external link. It is used in Template:Ref to stop the URL from expanding during printing. It should never be used in the main body of an article. However, there is an exception: wikilinks in Image markup. An example of the markup is as follows:
  • Markup: <span class="plainlinksneverexpand"> [http://www.sysinternals.com/ ntw2k/freeware/winobj.shtml WinObj]</span>
  • Display: WinObj
• See External Links for style issues.

Three ways to link to
external (non-wiki) sources:
# Bare URL:
http://www.nupedia.com/
(bad style)
# Unnamed link:
[http://www.nupedia.com/]
(only used within article
body for footnotes)
# Named link:
[http://www.nupedia.com Nupedia]

Linking to other wikis:

1. Interwiki link: Wiktionary:Hello
2. Interwiki link without prefix: Hello
3. Named interwiki link: Wiktionary definition of 'Hello'

• All of these forms lead to the URL http://en.wiktionary.org/wiki/Hello
• Note that interwiki links use the internal link style.
• See MetaWikiPedia:Interwiki_map for the list of shortcuts; if the site you want to link to is not on the list, use an external link (see above).
• See also to link to Wikimedia projects.

Linking to another language's wiktionary:

1. Wiktionary:fr:bonjour
2. bonjour
3. fr:bonjour

• All of these forms lead to the URL http://fr.wiktionary.org/wiki/bonjour

Linking to other wikis:
# [[Interwiki]] link:
[[Wiktionary:Hello]]
# Interwiki link without prefix:
[[Wiktionary:Hello|]]
# Named interwiki link:
[[Wiktionary:Hello|
Wiktionary definition 
of 'Hello']]

Linking to another
language's wiktionary:
# [[Wiktionary:fr:bonjour]]
# [[Wiktionary:fr:bonjour|bonjour]]
# [[Wiktionary:fr:bonjour|]]

ISBN 012345678X

ISBN 0-12-345678-X

• Link to books using their [4]. This is preferred to linking to a specific online bookstore, because it gives the reader a choice of vendors. However, if one bookstore or online service provides additional free information, such as table of contents or excerpts from the text, then a link to that source will aid the user and is recommended.
• ISBN links do not need any extra markup, provided you use one of the indicated formats.

ISBN 012345678X

ISBN 0-12-345678-X

Text mentioning RFC 4321 anywhere

• Link to Engineering Task Force RFCs.

Text mentioning RFC 4321 
anywhere

Date formats:

1. November 19, 2006
2. 19 November 2006
3. 2006-11-19

• Link dates in one of the above formats, so that everyone can set their own display order. If logged in, you can use Special:Preferences to change your own date display setting.
• All of the above dates will appear as "19 November 2006" if you set your date display preference to "15 January 2001", but as "November 19, 2006" if you set it to "January 15, 2001", or as "2006-11-19" if you set it to "2001-01-15".

Date formats:
# November 19, 2006
# 19 November 2006
# 2006-11-19

Special WP:AO links like this year needing future maintenance

Special [http://en.wikipedia.org/wiki/WP:AO WP:AO] links 
like [[As of 2006|this year]]
needing future maintenance

Text

• To include links to non-image uploads such as sounds, use a "media" link. For images, see next section.

<1--Some uploaded sounds are listed at Wikipedia:Sound.-->

[[media:WMD.py|Text]]

A picture: 
[[Image:Wiimote icon.png]]

With alternative text:
[[Image:Wiimote icon.png|The Wiimote]]

• Alternative text, used when a mouse hovers over the image or when the image is not loaded in a text-only browser, or when spoken aloud, is strongly encouraged. See Alternate text for images for help on choosing it.

Floating to the right side of the page
and with a caption:
[[Image:Wiimote icon.png|frame|The Wiimote]]

• The frame tag automatically floats the image right.
• The caption is also used as alternate text.

Floating to the right side of the page
''without'' a caption:
[[Image:Wiimote icon.png|right|The Wiimote]]

• The help topic on Extended image syntax explains more options.

A picture resized to 30 pixels...
[[Image:Wiimote icon.png|30 px]]

• The help topic on Extended image syntax explains more options.

Image:Wiimote icon.png

Linking directly to the description page
of an image:
[[:Image:Wiimote icon.png]]

• Clicking on an image displayed on a page

(such as any of the ones above) also leads to the description page

Image of a Wiimote

Linking directly to an image
without displaying it:
[[media:Wiimote icon.png|Image of a Wiimote]]

• To include links to images shown as links instead of drawn on the page, use a "media" link.

Example:
<div style="display:inline;
width:220px; float:right;">
Place images here </div>

Example: {| align=right
|-
| 
Place images here
|}

Using the flash tag will let Adobe Flash documents be embedded in an article without uploading them. All you have to do is provide the direct link to the Flash file (such as http://homestarrunner.com/100th_email.swf) inside the tags. X is the width of the flash and Y is the height.

<gflash>X Y http://homestarrunner.com/100th_email.swf</gflash>

Using the youtube tag will let videos from YouTube be embedded into an article. Please use this sparingly as some computers may not load flash fast enough. Recommend one or two per article if used. All you need to do is to get the individual video's ID from the URL. For example for the YouTube video located at http://www.youtube.com/watch?v=kihXP9WYhLc&eurl=, you will need the bolded section to be placed in between youtube tags on WiiLi's wiki.

<youtube>kihXP9WYhLc</youtube>

Emphasized text
Strong emphasis
Even stronger emphasis

''Emphasized text''
'''Strong emphasis'''
'''''Even stronger emphasis'''''

A typewriter font for monospace text or for computer code: int main()

• For semantic reasons, using <code> where applicable is preferable to using <tt>.

A typewriter font for <tt>monospace text</tt>
or for computer code: <code>int main()</code>

You can use small text for captions.

You can use <small>small text</small> for captions.

Better stay away from big text, unless it's within small text.

Better stay away from <big>big text</big>, unless
<small> it's <big>within</big> small</small> text.

You can strike out deleted material and underline new material.

You can also mark deleted material and inserted material using logical markup. For backwards compatibility better combine this potentially ignored new logical with the old physical markup.

• When editing regular Wikipedia articles, just make your changes and do not mark them up in any special way.
• When editing your own previous remarks in talk pages, it is sometimes appropriate to mark up deleted or inserted material.

You can <s>strike out deleted material</s>
and <u>underline new material</u>.

You can also mark <del>deleted material</del> and
<ins>inserted material</ins> using logical markup.
For backwards compatibility better combine this
potentially ignored new <del>logical</del> with
the old <s><del>physical</del></s> markup.

Suppressing interpretation of markup:
Link → (''to'') the [http://en.wikipedia.org/wiki/Wikipedia_FAQ Wikipedia FAQ]

• Used to show literal data that would otherwise have special meaning.
• Escape all wiki markup, including that which looks like HTML tags.
• Does not escape HTML character references.
• To escape HTML character references such as &rarr; use &amp;rarr;

<nowiki>Link &rarr; (''to'') 
the [http://en.wikipedia.org/wiki/Wikipedia_FAQ Wikipedia FAQ]</nowiki>

Commenting page source:
not shown when viewing page

• Used to leave comments in a page for future editors.
• Note that most comments should go on the appropriate Talk page].

<!-- comment here -->

Diacritical marks:
À Á Â Ã Ä Å
Æ Ç È É Ê Ë
Ì Í Î Ï Ñ Ò
Ó Ô Õ Ö Ø Ù
Ú Û Ü ß à á
â ã ä å æ ç
è é ê ë ì í
î ï ñ ò ó ô
œ õ ö ø ù ú
û ü ÿ

• See special characters].

À Á Â Ã Ä Å 
Æ Ç È É Ê Ë 
Ì Í Î Ï Ñ Ò 
Ó Ô Õ Ö Ø Ù 
Ú Û Ü ß à á 
â ã ä å æ ç 
è é ê ë ì í
î ï ñ ò ó ô 
œ õ ö ø ù ú 
û ü ÿ

Punctuation:
¿ ¡ § ¶
† ‡ • – —
‹ › « »
‘ ’ “ ”

¿ ¡ § ¶
† ‡ • – —
‹ › « »
‘ ’ “ ”

Commercial symbols:
™ © ® ¢ € ¥
£ ¤

™ © ® ¢ € ¥ 
£ ¤

Subscripts:
x₁ x₂ x₃ or
x₀ x₁ x₂ x₃ x₄
x₅ x₆ x₇ x₈ x₉

Superscripts:
x¹ x² x³ or
x⁰ x¹ x² x³ x⁴
x⁵ x⁶ x⁷ x⁸ x⁹

• The latter methods of sub/superscripting cannot be used in the most general context, as they rely on Unicode support which may not be present on all users' machines. For the 1-2-3 superscripts, it is nevertheless preferred when possible (as with units of measurement) because most browsers have an easier time formatting lines with it.

ε₀ = 8.85 × 10⁻¹² C² / J m.

1 hectare = 1 E4 m²

x<sub>1</sub> x<sub>2</sub> x<sub>3</sub> or
<br/>
x&#8320; x&#8421; x&#8322; x&#8323; x&#8324;
<br/>
x&#8325; x&#8326; x&#8327; x&#8328; x&#8329;

x<sup>1</sup> x<sup>2</sup> x<sup>3</sup> or
<br/>
x&#8304; x&sup1; x&sup2; x&sup3; x&#8308;
<br/>
x&#8309; x&#8310; x&#8311; x&#8312; x&#8313;

&epsilon;<sub>0</sub> =
8.85 &times; 10<sup>&minus;12</sup>
C&sup2; / J m.

1 hectare = 1 E4 m&sup2;

Greek characters:
α β γ δ ε ζ
η θ ι κ λ μ ν
ξ ο π ρ σ ς
τ υ φ χ ψ ω
Γ Δ Θ Λ Ξ Π
Σ Φ Ψ Ω

α β γ δ ε ζ 
η θ ι κ λ μ ν 
ξ ο π ρ σ ς
τ υ φ χ ψ ω
Γ Δ Θ Λ Ξ Π 
Σ Φ Ψ Ω

Mathematical characters:
∫ ∑ ∏ √ − ± ∞
≈ ∝ ≡ ≠ ≤ ≥
× · ÷ ∂ ′ ″
∇ ‰ ° ∴ ℵ ø
∈ ∉ ∩ ∪ ⊂ ⊃ ⊆ ⊇
¬ ∧ ∨ ∃ ∀ ⇒ ⇐ ⇓ ⇑ ⇔
→ ↓ ↑ ← ↔

• See also WikiProject Mathematics] and TeX.

∫ ∑ ∏ √ − ± ∞
≈ ∝ ≡ ≠ ≤ ≥
× · ÷ ∂ ′ ″
∇ ‰ ° ∴ ℵ ø
∈ ∉ ∩ ∪ ⊂ ⊃ ⊆ ⊇
¬ ∧ ∨ ∃ ∀ ⇒ ⇐ ⇓ ⇑ ⇔
→ ↓ ↑ ← ↔

<math>\sin x + \ln y</math>
sinx + lny

<math>\mathbf{x} = 0</math>
x = 0

Ordinary text should use wiki markup for emphasis, and should not use <i> or <b>. However, mathematical formulas often use italics, and sometimes use bold, for reasons unrelated to emphasis. Complex formulas should use <math> markup], and simple formulas may use <math>; or <i> and <b>; or '' and '''. According to WikiProject Mathematics, wiki markup is preferred over HTML markup like <i> and <b>.

<math>\sin x + \ln y</math>
sin''x'' + ln''y''

<math>\mathbf{x} = 0</math>
'''x''' = 0

Spacing in simple math formulas:
Obviously, x² ≥ 0 is true when x is a real number.

• To space things out without allowing line breaks to interrupt the formula, use non-breaking spaces: &nbsp;.

Obviously, ''x''² ≥ 0 is true when ''x'' is a real number.

Complicated formulas:

<math>\sum_{n=0}^\infty \frac{x^n}{n!}</math>

• See Help:Formula for how to use <math>.
• A formula displayed on a line by itself should probably be indented by using the colon (:) character.

: <math>\sum_{n=0}^\infty \frac{x^n}{n!}</math>

The nowiki tag ignores [[Wiki]] ''markup''. It reformats text by removing newlines and multiple spaces. It still interprets special characters: →

<nowiki>
The nowiki tag ignores [[Wiki]] ''markup''.
It reformats text by removing newlines    and multiple spaces.
It still interprets special characters: &rarr;
</nowiki>

The pre tag ignores [[Wiki]] ''markup''.
It also doesn't     reformat text.
It still interprets special characters: →

<pre>
The pre tag ignores [[Wiki]] ''markup''.
It also doesn't     reformat text.
It still interprets special characters: &rarr;
</pre>

Leading spaces are another way to preserve formatting.

Putting a space at the beginning of each line
stops the text   from being reformatted. It still
interprets Wiki
markup and special
characters: →

Leading spaces are another way to preserve formatting.

 Putting a space at the beginning of each line
 stops the text   from being reformatted. It still
 interprets [http://en.wikipedia.org/wiki/Wiki Wiki]
 ''markup'' and special
 characters: →