User:Lord Farin/Sandbox

This page exists for me to be able to test out features I am developing.

= Norm definition cleanup =

The group of pages around Definition:Norm is a big mess. I will prepare a restructuring of these pages before changing them all. Links below.


 * /Definition:Norm will be a disambiguation page
 * /Definition:Norm (Vector Space)
 * /Definition:Norm (Linear Space)
 * /Definition:Norm (Division Ring)
 * /Definition:Norm (Field) will redirect to above

I have yet to find literature to back up my plan for defining a very general concept of norm; this will hopefully be done before I write it myself ;).


 * In fact, it turns out I have been able to define it by myself; thorough checking is invited, and comments are more than welcome. --Lord_Farin 12:47, 17 November 2011 (CST)

Eventual goal is to provide a proper embedding for P-adic Metric is a Norm.

Update: The fact that no feedback arises I judge as a good thing; I will be pushing my version of the norm definition to the main namespace next week. So, if you still have any comment, now is the time to say so. --Lord_Farin 16:54, 25 November 2011 (CST)

= Foldable template testing =

Testing the Template:Begin-foldable

test content. test content. test content. test content.
 * $\displaystyle \int \frac 1 {1 + x^2} \mathrm{d}x = \arctan x + c$

All normal PW stuff works here, not just integrals ;)

You could even define another section inside (though I would discourage that)

This section is initially not visible
...Or was it?

You could even define another section inside (though I would discourage that)

This section is initially not visible
...Or was it?