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[Bug-gsl] Fwd: Bug in gsl_blas_dnrm2
From: |
Pierrick Bruneau |
Subject: |
[Bug-gsl] Fwd: Bug in gsl_blas_dnrm2 |
Date: |
Fri, 12 Feb 2010 11:36:26 +0100 |
Sorry, I forgot to mention info about my environment :
GSL version 1.12
Mac OS X Snow Leopard
GCC 4.2.1
GSL and source compiled in 386 mode (gcc option -arch i386)
> De : Pierrick Bruneau <address@hidden>
> Date : 12 février 2010 11:26:17 HNEC
> À : address@hidden
> Objet : Bug in gsl_blas_dnrm2
>
> Hi everyone,
>
> This BLAS interface function should compute the Euclidian norm of a
> gsl_vector, but I just noticed that the obtained result is always wrong.
>
> For example, consider the vector : [0 1 2 3 4 5 6 7 8 9]
>
> Normally the norm should be 16.88, and gsl_blas_dnrm2 produces 10.00...
> Or maybe I missed something ?
>
> Anyway, I attached a little source sample that reproduces this case, and
> compares to what is obtained using gsl_blas_ddot.
>
>
>
>
> Pierrick Bruneau
>
>
>