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# Editing

There are certain tags which will effect words they are "wrapped around":

## Formatting of words

The ' are used in formatting words:

''Italics'' (2x ') will make Italics
'''Bold''' (3x ') to write in Bold
'''''Hi all!''''' (5x ') will print Hi all!

== Level 2 ==
=== Level 3 ===
==== Level 4 ====
===== Level 5 =====
====== Level 6 ======


## How to wikify

This is probably the most important of the tags. To wikify a sentence means to make the sentence link to the corresponding article on the Prime-Wiki. This is done by putting [[ ]] around the word.

An example:

"The person who runs the [[GIMPS]] project is [[George Woltman]]"


will make:

"The person who runs the GIMPS project is George Woltman".


It it also possible to link using a different title. That is done by using | inside the [[ ]] to separate link and title.

An example would be:

"Certain [[Lucas-Lehmer test|tests]] are used in [[GIMPS]], which is the biggest mathematical [[Distributed computing project|project]]"


which would turn up as:

"Certain tests are used in GIMPS, which is the biggest mathematical project"


Creating a link to a category a : has to be put before. The code [[:Category:Project]] will create Category:Project or with [[:Category:Project|Proj.]] displays as Proj..

Plurals of article names can be obtained by adding the 's' outside the brackets: [[Project]] is shown as Project but [[project]]s as projects.

To add a link to a page outside Prime-Wiki you could either just type the URL:

"To get more info, please visit https://www.google.com"


or you could make a description by putting it in the form [link title]. That would turn

"To get more info, please visit [https://www.google.com Google]"


### Currents default links with icons

Links containing a designated domain are shown with an icon behind the link. The following options are implemented:

• MersenneForum: [https://www.mersenneforum.org/index.php Forum] creates Forum
• The Prime Database: [https://primes.utm.edu/primes/status.php Status] creates Status
• Wolfram Mathworld: [http://mathworld.wolfram.com/ Home] creates Home
• GIMPS Hompage: [https://www.mersenne.org/ GIMPS] creates GIMPS

For Wikipedia an internal shortcut is set, so the calling is slightly different:

• Wikipedia: [[Wikipedia:Pierre de Fermat|Fermat]] creates Fermat
(Can be done as usual but longer: [https://en.wikipedia.org/wiki/Pierre_de_Fermat Fermat] creates Fermat)

## References

A reference is inserted in the page by using the <ref>...</ref> tags. So this[1] (in the page as this<ref>Here is the reference.</ref>) will create a numbered link to the reference list, which has to be included by using the template {{Reflist}} at the bottom of the page.

## Math symbols

To write mathematical formulas, insert $and$ around your formula.

For example

"The [[Sierpiński problem]] is about numbers of the form $k*2^n+1$"


would show

"The Sierpiński problem is about numbers of the form $\displaystyle{ k*2^n+1 }$"

For more detailed help with math formulas, see math rendering

## Talk pages

Every page (not specials) got the ability to create a talk page to discuss topics around that page, template or user.

To create a talk page click the link "Discussion" on that page, use the link "Add topic" to create a new topic, fill in "Subject" (the header line of this topic) and your text in the normal edit field like in any article. Please put 4 tildes ~~~~ at last which will create a link to your user and the date/time of edit.

Answering on this topic you should indent your answer by using : in front of the text, so this could be look like this:

A topic by someone.


which gives

A topic by someone.