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====== PlayGround ======

Some examples of Latex encoding

<latex>
    \frac{3}{4 \pi}   \sqrt{4 x^2  + 12}\\
    \lim_{n \to \infty}
    \sum_{k=1}^n \frac{1}{k^2} = \frac{\pi^2}{6}\\
    \it{f}(x) = \frac{1}{\sqrt{x} x^2}\\
    e^{i \pi} + 1 = 0}\;
</latex>

Some inline latex encoding: <latex> 1 \leq 4 </latex>. Is it aligned well? Sometimes. How about <latex> \sum_{n=0}^{\infty} 1/n^2 </latex>?

Try some dollar-sign inlines.

An example of equation alignment. 

<latex>
 $ \begin{align*}
\int x^2 dx & = \frac{1}{3}x^3 \\
\therefore\quad\int_0^1 x^2 dx &= \frac{1}{3} 
\end{align*}
$ 
</latex>

Let

<latex>
 $ \begin{align*}
u(x,t) &= 0\\
f^t(u) &= 0 \\
G(u,t) &= 0 \\
r(u,t) &= 1/2 || G(u,t) ||^2 
\end{align*}
$ 
</latex>

====== Discussion plugin example ======

{{threads>playground:testdiscussion}}
====== Flash video ======
FLV file viewed through flashplayer plugin

<flashplayer width="640" height="500">file=/p88p90.flv&image=/p88p90b.png&repeat=none</flashplayer>

----

direct embedding of a SWF file

{{p88p90.swf?640x480}}

the problem with flowplay plugin is that it plays the movie once, and then you can restart it only by reloading the page. Also //y// on the left margin is mangled.
 --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-01-28 04:27//

----

FLV file viewed through flowplay plugin

{{flowplay2>http://www.channelflow.org/p88p90.flv?640x480}}

this just generates a blank? until the p88p90.png...
 --- //[[predrag.cvitanovic@physics.gatech.edu|Predrag Cvitanovic]] 2009-01-28 04:28//

{{:playground:p88p90.png|}}

----


======  testing page rename plugin ======

[[playground:foo: a new page named foo]]

====== testing blog plugin, and related ======

<pagelist&tags>
  * [[plugin:blog]]
  * [[plugin:discussion]]
  * [[plugin:clearfloat]]
</pagelist>

{{tag>demo pagelist}}
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