Talk:Generalized inverse

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Multiple linear regression[edit]

I am reading the articles about the pseudoinverse and wondering about what is the difference between that and multiple linear regression. In another word, if I have a same set of linear equations, using the pseudoinverse method or linear regression, should I get same solution? Thanks. Simonliang (talk) 00:55, 29 September 2008 (UTC)

Construction formulae: unhelpful?[edit]

I'm thinking of changing or removing the construction formulae for the left and right inverses, for three reasons:

  1. The formulae only apply when the matrix has full rank;
  2. When is poorly conditioned, the formulae suffer from numerical issues;
  3. The formulae, if they apply at all and give sufficiently accurate results, give only the Moore-Penrose pseudo-inverse, and do not constitute general formulae for the construction of generalized inverses (which are the subject of the article).

Any comments before I press on with my edits? Cooperised (talk) 22:35, 3 June 2013 (UTC)

Article needs examples[edit]

This article could be improved if someone knowledgeable of the subject would insert a section with examples, preferably of all types of generalized inverse addressed in the article.—Anita5192 (talk) 01:58, 4 February 2017 (UTC)

I inserted examples of some types of generalized inverse. I still think it would be best to have an example of each type.—Anita5192 (talk) 16:54, 11 October 2017 (UTC)

The external link does not work[edit]

The external link does not work: Article 15A09 in: 15A09 Matrix inversion, generalized inverses in Mathematics Subject Classification, MathSciNet search — Preceding unsigned comment added by Sohale (talkcontribs) 21:51, 10 March 2017 (UTC)

The dead link is now removed.—Anita5192 (talk) 23:13, 10 March 2017 (UTC)