[SciPy-user] Possible bug in linalg.lu

[Pietro Berkes]

the function linalg.lu seems to be defined for real matrices only. if you want 
to use it for complex ones, the fastest solution is probably to write a 
wrapper to the lapack function ZGETRF. it should work like in the real case 
(cfr. linalg/src/lu.f).

regards,
pietro.

On Monday 14 July 2003 15:29, Nils Wagner wrote:
> Hi all,
>
> >>> C
>
> array([[ 3.003+0.j,  1.   +0.j,  0.   +0.j,  0.   +0.j],
>        [ 3.   +0.j,  3.003+0.j,  2.   +0.j,  0.   +0.j],
>        [ 0.   +0.j,  2.   +0.j,  3.003+0.j,  3.   +0.j],
>        [ 0.   +0.j,  0.   +0.j,  1.   +0.j,  2.   +0.j]])
>
> >>> linalg.lu(C)
>
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File "/usr/local/lib/python2.1/site-packages/scipy/linalg/decomp.py",
> line 238, in lu
>     p,l,u,info = flu(a1,permute_l=permute_l,overwrite_a = overwrite_a)
> TypeError: object of type 'None' is not callable
>
>
> For what reason ?
>
> Nils
>
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