Talk:Parabola

From Citizendium
Revision as of 10:48, 16 March 2010 by imported>Paul Wormer (→‎Diagram: new section)
Jump to navigation Jump to search
This article is a stub and thus not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
To learn how to update the categories for this article, see here. To update categories, edit the metadata template.
 Definition The planar curve formed by the points that lie as far from a given line (the directrix) as from a given point (the focus). [d] [e]
Checklist and Archives
 Workgroup category Mathematics [Categories OK]
 Talk Archive none  English language variant British English

I'll be adding the more familiar equation-based description next. --Holger Kley 02:00, 10 December 2007 (CST)

Diagram

I wonder whether the diagram really depicts a parabola. It seems as if the two branches ultimately are parallel to the y-axis. Compare with:

CC Image

--Paul Wormer 16:48, 16 March 2010 (UTC)