Talk:Support function

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Unresolved issues

A figure illustrating the definition would be nice (similar to the one in Richard Gardner's book on geometric tomography)
I was not sure about the use of support functions outside convex geometry. I therefore included the original definition

for orientable manifolds under Variants. Anybody who knows more about this? (I am tempted to omit it completely)

Are the Categories correct? I am a newcomer on wikipedia and haven't overview over the categories and their correct use.
I avoided the notion of "convex body", as in the wiki-definition "convex bodies" always contain interior points and this is not needed here anywhere.

Nysgerrig (talk) 15:32, 3 October 2010 (UTC)[reply]

It is requested that a diagram or diagrams be included in this article to improve its quality. Specific illustrations, plots or diagrams can be requested at the Graphic Lab. Please replace this template with a more specific media request template where possible.
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Diagram

A nice diagram would have an origin, a curve around the origin, and tangent planes drawn with rays from the origin to the planes. As I heard Strang put it today in a lecture, the support function is supporting the set with a bunch of planes. —Ben FrantzDale 02:37, 8 February 2007 (UTC)[reply]

Perimeter

h(\mathbf {x} )=\mathbf {x} \cdot N(\mathbf {x} )\quad \forall \mathbf {x}

on the perimeter of M.

How is the perimeter of a regular surface M defined? --Abdull (talk) 19:22, 28 June 2008 (UTC)[reply]