Hi Thomas,
you was right, my problem is inthe atlas library:
$ LD_LIBRARY_PATH=/usr/lib /usr/bin/octave -q --eval '[1 2; 3 4] * [1; 1i]'
ans =
1 + 2i
3 + 4i
$ lmt-linux ~ $ /usr/bin/octave -q --eval '[1 2; 3 4] * [1; 1i]'
ans =
1.0000 + 0.0000i
3.0000 + 0.0000i
$ ldd /usr/bin/octave | grep -i lapack
liblapack.so.3gf => /usr/lib/sse2/atlas/liblapack.so.3gf (0xb653f000)
$ dpkg -S /usr/lib/sse2/atlas/liblapack.so.3gf
libatlas3gf-sse2: /usr/lib/sse2/atlas/liblapack.so.3gf
$ dpkg -l libatlas3gf-sse2
...
+++-==============-==============-============================================
ii libatlas3gf-ss 3.6.0-24 Automatically Tuned Linear Algebra Software,
Does I need to make a follow-up to the atlas package bug-report system?
Regards,
Laurent
Quoting Thomas Weber <thomas.weber.m...@gmail.com>:
On Wed, Apr 22, 2009 at 11:04:14PM +0200, Thomas Weber wrote:
On Wed, Apr 22, 2009 at 12:01:19PM +0200, Laurent Mazet wrote:
> Package: octave3.0
> Version: 1:3.0.1-7
> Arch: i386
> Severity: grave
>
> Hi,
>
> I've just realized that I can multiply a real 2x2 matrix by a
complex vector.
Uh, yes. Why shouldn't this work? Or in other words, how do you
distinguish the real matrix from a complex matrix with its complex
coefficients being zero
[ 1, 2; 3,4] is the same as [1+0i, 2+0i; 3+0i, 4+0i], isn't it?
Sorry, I just realized that the problem was the result, not the act of
multiplication. Anyway, which BLAS/ATLAS libraries are installed on your
system?
Thomas
--
Dr. Laurent Mazet -=- "Use the source, Luke" -=- ma...@softndesign.org
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