Talk:S-number

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The definition of singular value given here is not general enough for the article singular value decomposition, since over there we need the concept for non-square matrices as well. AxelBoldt 16:41, 20 Apr 2005 (UTC)

[edit] Why "singular"?

What's "singular" about a singular value? (Why the name?) —Ben FrantzDale 16:56, 20 November 2006 (UTC)

According to my math prof, it's just that these are the values that make (\sqrt{A^*A}-\lambda I) singular. —Ben FrantzDale 21:02, 5 December 2006 (UTC)
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