Re: [Bug-gsl] GSL: NaN results in SVD calculation (gsl_linalg_SV_decomp)

[Brian Gough]

At Tue, 26 Jan 2010 11:01:13 +0100,
Bruno Daniel wrote:
> --------------------------------------------------------------
> GSL version number: 1.9
> hardware and operating system, OS details:
>   Linux phit1 2.6.25.20-0.5-default #1 SMP 2009-08-14 01:48:11 +0200 x86_64
>   x86_64 x86_64 GNU/Linux
> gcc version:
>   gcc version 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036]
>   (SUSE Linux)
> genre: linalg, SVD, gsl_linalg_SV_decomp
> description of the bug behavior: NaN results in gsl_linalg_SV_decomp
> short program which exercises the bug: attached

I have now committed a fix for this bug.

http://git.savannah.gnu.org/cgit/gsl.git/commit/?id=7946d551c30943f38bfcd1c31e109919e12fbe5a

The test case found several previously unseen problems that could
cause NaNs -- thanks for the bug report.

-- 
Brian Gough

GNU Scientific Library -
http://www.gnu.org/software/gsl/