[SciPy-user] how to find projection of a point to subspace?

Dmitrey dmitrey15@ukr....
Fri May 29 13:51:51 CDT 2009


hi all,

Suppose I have point x = [x0, ..., xn-1] and linear subspace defined by 
Ax=b, A is m x n matrix, b is vector of length m.

What is the best way to find projection of the point x to the
subspace? (Suitable for ill-conditioned cases)

Does anyone have some code (preferably Python or MATLAB)?

Search in google yields 1st place for the article
http://cat.inist.fr/?aModele=afficheN&cpsidt=18593975
but the one is unavailable for free.

Thank you in advance,
D.



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