# Help:Tips and Tricks

From IFPA wiki

This wiki may only be edited by IFPA members with accounts on the wiki. If you are a member of the IFPA group and have not yet obtained a wiki account, please contact the wiki maintainer.

For members with accounts, once you log in, the usual documentation for editing on the wiki applies here as well. This page documents some IFPA-wiki-only tips and tricks that may help you with your editing here, in addition to guiding you around the various parts of the IFPA-wiki theme.

## Your first edit and the WikiEditor interface

You should see the wikieditor interface show up when you are editing a page or creating one anew. This should look as follows:

If, instead, you see a blank text-entry box without the "Wikitext-Preview-Changes" toolbar, please reload your page. This is a known problem with the WikiEditor toolbar on some combinations of browsers and operating systems.

## Equations and Inline Math

Description Raw Text Input Shows as
Inline maths This is Einstein's famous equation: $E = \sqrt{m^{2} c^{4} + p^{2} c^{2}}$. This is Einstein's famous equation: $E = \sqrt{m^{2} c^{4} + p^{2} c^{2}}$.
DisplayMath shows a centred (unnumbered) equation in its own line {{DisplayMath | $\sin^{2}(\varphi) + \cos^{2}(\varphi) = 1$}}
$\sin^{2}(\varphi) + \cos^{2}(\varphi) = 1$
NumberedEqn shows as a centred equation in its own line with automatic numbering, starting with number 1 on every page {{NumberedEqn | $\partial_{\alpha} F^{\alpha\beta} = \mu_{0} J^{\beta}$}}

{{NumberedEqn | $2 \partial_{\alpha} \partial^{[\alpha} A^{\beta]} = \mu_{0} J^{\beta}$}}

{{NumberedEqn | $\tfrac{1}{\sqrt{-g}}\partial_{\alpha} \left(\sqrt{-g} F^{\alpha\beta} \right) = \mu_{0} J^{\beta}$}}
$\partial_{\alpha} F^{\alpha\beta} = \mu_{0} J^{\beta}$(1)
$2 \partial_{\alpha} \partial^{[\alpha} A^{\beta]} = \mu_{0} J^{\beta}$(2)
$\tfrac{1}{\sqrt{-g}}\partial_{\alpha} \left(\sqrt{-g} F^{\alpha\beta} \right) = \mu_{0} J^{\beta}$(3)

## Embedding PDFs

Use {{PDF | name=<Uploaded file name with extension> | width=<optional width> | height=<optional height>}} to embed a PDF (already uploaded on the wiki) in your page. For browsers that do not support PDF embedding (e.g. on the mobile), a link to the PDF file is shown instead.

### Example

This {{PDF | name=Slides-1.pdf | width=500 | height=400}} gives:

## Member Infobox

{{Infobox |Mugshot=Phi4.jpg |Position=Chapter 4, P&S |Research=Quantum Field Theory |OffPh=+32 xxx xxxx xxx |ULgEmail=some.email |Office=Bât B5a 4/xx }} to show a member (or, in this case, a tadpole) infobox

 Position Chapter 4, P&S Quantum Field Theory Bât B5a 4/xx some.email (at) uliege.be +32 xxx xxxx xxx

## Locked-out Pages

Pages in the Protected namespace are viewable only to logged in members of the IFPA wiki. To create a protected page, assuming you are already logged in, simply create a new page with its title prefixed with: Protected:.

It is often convenient to have a link at the top/bottom of a page that points "Back to" some semantically parent page. This is easily done by using the BackTo template. Use {{BackTo | Parent page title | Optional display text}} to do this. If the optional display text is omitted, the parent page title is automatically used in its lieu.

### Example

{{BackTo | Introduction to quantum field theory}} shows up as
Introduction to quantum field theory .

{{BackTo | Introduction to quantum field theory | Back to course main page}} shows up as
Back to course main page .

Embed RSS/Atom feeds in a page by using the <rss max=<opt N> >http://URL_to_RSS_feed_here</rss> div. The optional max= tag specifies the maximum number of items to display from the feed; if omitted, all items from the feed are shown.

## Interwiki

Quick shortcuts to link to external websites:

Raw input Displayed output
[[arxiv:1606.03738]] arxiv:1606.03738
[[mw:Help:Tables | Help with tables on wikipages]] Help with tables on wikipages
[[doi:10.1088/1475-7516/2017/07/027]] doi:10.1088/1475-7516/2017/07/027
[[wikibooks:Special Relativity]] wikibooks:Special Relativity
[[wikipedia:Albert Einstein]] wikipedia:Albert Einstein

See full list of shortcuts at Special:Interwiki

## Collapsible hints (hidden initially)

{{Collapsed Paragraph | Hint for problem | Recall $E=mc^2$}}

to get:

Hint for problem

Recall $E=mc^2$

IFPA Wiki maintained by Atri B.