Tue, 20 Jul 2010 08:17:18 +0200, Scott Sinclair wrote:
[clip]
>>>> import numpy as np
>>>> np.__version__
> '1.4.1'
>>>> np.array([0,0], dtype='Complex128')
> array([0.0+0.0j, 0.0+0.0j], dtype=complex256)
>>>> np.array([0,0], dtype='Complex64')
> array([ 0.+0.j, 0.+0.j])
>>>> np.array([0,0], dtype='Complex64').dtype
> dtype('complex128')
I think this is historical cruft from Numeric:
>>> import Numeric
>>> Numeric.Complex64
'D'
>>> Numeric.Complex32
'F'
There, the width of complex number was given by specifying the size of
one element, not the total size.
Numpy should probably raise a DeprecationWarning when someone tries to
use these old Numeric type codes.
--
Pauli Virtanen
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