Talk:Support function

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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]