LAPACK Archives

[Lapack] Problem with DGELSD

Hello, LAPACK team,

I ran into a problem with DGELSD, which is described in the attached text file.

I've compared the source code of v3.1.1 to v3.4.0, and I don't see 
any differences that would change these results.

This may be a bug, or perhaps a lack of understanding on my part.

I'm trying to 'train' a neural network, which is the origin of these 
strange looking matrices.

DGELSS works correctly with the same inputs.


William B. Birkett - <wbirkett@Domain.Removed>
Print Quality Consultant
Doppelganger, LLC  -

48799 Meadow Drive, Plymouth, MI 48170 (USA)
Office: (734) 927-4232      FAX: (734) 468-0580
Cell: (734) 516-4790
-------------- next part --------------
A non-text attachment was scrubbed...
Name: DGELSD_problem.txt
Type: application/octet-stream
Size: 4086 bytes
Desc: not available
Url :

<Prev in Thread] Current Thread [Next in Thread>

For additional information you may use the LAPACK/ScaLAPACK Forum.
Or one of the mailing lists, or