Italicized text
Bold text
Italicized & Bold text

''Italicized text''
'''Bold text'''
'''''Italicized & Bold text'''''

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 [[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 → use →

<nowiki>Link &rarr; (''to'') 
the [[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 -->

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.

x<sub>1</sub> x<sub>2</sub> x<sub>3</sub> or
x&#8320; x&#8321; x&#8322; x&#8323; x&#8324;
x&#8325; x&#8326; x&#8327; x&#8328; x&#8329;

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

Mathematical characters:
∑ √ ± ∴ ≈ ≠
≤ ≥ → ← ↔

∑ √ ± ∴ ≈ ≠
≤ ≥ → ← ↔

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 [[Wiki]] ''markup'' and
 special characters: →