odd behaviour of thin svd?

[John W. Eaton]

On 31-Aug-2001, Paul Soderlind <address@hidden> wrote:

| 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

I could reproduce this with 2.1.34, but the problem seems to be fixed
in the current CVS sources.

jwe



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