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Re: [Help-gsl] is there a function for Matrix polar decomposition in GSL
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From: |
Jordi Gutierrez Hermoso |
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Subject: |
Re: [Help-gsl] is there a function for Matrix polar decomposition in GSL? |
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Date: |
Sat, 17 Mar 2007 23:08:04 -0600 |
On 17/03/07, yang cheng <address@hidden> wrote:
there are functions for QR and SVD decompositions, however
I can not find polar decomposition.
is it available in gsl or other free library?
No, but it's easily reproduced from the SVD. If A = WSV* is the SVD of
A, then P = VSV* and U = WV* gives the polar form A = UP.
HTH,
- Jordi G. H.