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odd behaviour of thin svd?
From: |
Paul Soderlind |
Subject: |
odd behaviour of thin svd? |
Date: |
Fri, 31 Aug 2001 14:48:33 +0200 |
Hi all,
I just tried svd([1 2],0) in Octave-2.1.34 (Windows NT, CygWin). It seems as
the result is transposed. Is this to be expected, or is it a buglet?
(1) The standard form: [u,s,v]=svd([1 2]), u*s*v'
u = 1
s =
2.23607 0.00000
v =
0.44721 -0.89443
0.89443 0.44721
ans =
1.00000 2.00000
(2) The thin form: [u,s,v]=svd([1 2],1), u*s*v'
u = 1
s = 2.2361
v =
0.44721 0.89443
ans =
1.00000
2.00000
Thanks for any help
Paul Söderlind
********************************************************
Paul Söderlind
Stockholm School of Economics
PO Box 6501 (or Sveav. 65)
SE-113 83 Stockholm
Sweden
email: address@hidden
homepage: http://www.hhs.se/personal/psoderlind/
telephone: +46-8-7369161
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- odd behaviour of thin svd?,
Paul Soderlind <=