Re: [Numpy-discussion] Complex128

2010-07-20 Thread Scott Sinclair 
On 19 July 2010 10:23, Pauli Virtanen p...@iki.fi wrote:
 Sun, 18 Jul 2010 21:15:15 -0500, Ross Harder wrote:

 mac os x leopard 10.5..
 EPD installed

 i just don't understand why i get one thing when i ask for another. i
 can get what i want, but only by not asking for it.

 Do you get the same behavior also from

        import numpy as np
        np.array([0,0], dtype=np.complex256)

I see:

Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41)
[GCC 4.4.3] on linux2
Type help, copyright, credits or license for more information.
 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')
 np.array([0,0], dtype='complex128')
array([ 0.+0.j,  0.+0.j])
 np.array([0,0], dtype='complex128').dtype
dtype('complex128')
 np.array([0,0], dtype='complex64')
array([ 0.+0.j,  0.+0.j], dtype=complex64)
 np.array([0,0], dtype=np.complex128)
array([ 0.+0.j,  0.+0.j])
 np.array([0,0], dtype=np.complex128).dtype
dtype('complex128')
 np.array([0,0], dtype=np.complex64)
array([ 0.+0.j,  0.+0.j], dtype=complex64)

on Ubuntu 64 bit.

Cheers,
Scott
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Re: [Numpy-discussion] Complex128

2010-07-19 Thread Pauli Virtanen 
Sun, 18 Jul 2010 21:15:15 -0500, Ross Harder wrote:

 mac os x leopard 10.5..
 EPD installed
 
 i just don't understand why i get one thing when i ask for another. i
 can get what i want, but only by not asking for it.

Do you get the same behavior also from

import numpy as np
np.array([0,0], dtype=np.complex256)

-- 
Pauli Virtanen

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[Numpy-discussion] Complex128

2010-07-18 Thread Ross Harder 
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?

if i ask for complex128 (little c) I get complex128
if i ask for complex (little c) i get complex128
if i ask for Complex (cap C) i get unrecognized type
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Re: [Numpy-discussion] Complex128

2010-07-18 Thread Ross Harder 
mac os x leopard 10.5..
EPD installed

i just don't understand why i get one thing when i ask for another.
i can get what i want, but only by not asking for it.

thanks,
Ross


On Sun, Jul 18, 2010 at 6:02 PM, Pauli Virtanen p...@iki.fi wrote:
 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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