Talk:Quadric (projective geometry)

I don't understand the notation at the bottom of the page. Maybe someone should offer an explanation? Or at least a link to one.--SurrealWarrior (talk) 03:48, 5 June 2008 (UTC)

Image restoration
The following image were in this article:
 * file:Minkowski-minimal-model.png
 * file:Minkowski-axioms-c3-c4.png
 * file:Minkowski-axioms-c1-c2.png
 * file:Theorem-of-miquel.png

They were removed for copyright reasons, but permission has been supplied, so the images have been restored. Someone can add them back to the article.-- SPhilbrick (Talk)  19:23, 19 March 2013 (UTC)

math notation

 * $$ <\vec{x}> \, $$
 * $$ \langle\vec{x}\rangle \, $$

The second form above is standard. Michael Hardy (talk) 18:55, 22 January 2014 (UTC)