[Numpy-discussion] Complex128

Pauli Virtanen pav@iki...
Sun Jul 18 18:02:50 CDT 2010


Sun, 18 Jul 2010 17:26:13 -0500, Ross Harder wrote:
> I don't understand the following.
>>> a=np.zeros( (3,3,3), dtype='Complex128')
>>>> a
> array([[[0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j]],
> 
>        [[0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j]],
> 
>        [[0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j],
>         [0.0+0.0j, 0.0+0.0j, 0.0+0.0j]]], dtype=complex256)
> 
> i ask for Complex128 and get complex256?

What platform? On Win-64 longdouble == double.

Of course, the byte-width names should still reflect the reality. Please 
file a bug ticket...

-- 
Pauli Virtanen



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