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Go on, try it!
[edit] Testing TeX rendering
Failed to parse (Can't write to or create math temp directory): \phi_n(\kappa) = \frac{1}{4\pi^2\kappa^2} \int_0^\infty \frac{\sin(\kappa R)}{\kappa R} \frac{\partial}{\partial R}\left[R^2\frac{\partial D_n(R)}{\partial R}\right]\,dR\,
[edit] Image testing
Hmm ok. Images works by uploading them and then putting links to these images (Use the tool next to the A).
I wonder whether it's possible to create links around them - considering that they themselves are seemingly links by default? For example, in order to make thumbnail galleries. The huge example below (for example) does not work.
Works now, but does some float right thing or something so it doesn't look that good. But the point is that it works.
Right, I've tampered a bit, please see http://en.wikipedia.org/wiki/Wikipedia:Extended_image_syntax for information with regards to "hacking" images. The image on the right is a |thumb|, which is different from the |left|150px| on the left.
[edit] Love
I love pike!

