Author bins
Recipients alanmcintyre, bins, christian.heimes, gvanrossum, inducer, jcea, loewis, mark.dickinson
Date 2010-05-11.13:29:38
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Message-id <1273584580.73.0.173270813567.issue1381@psf.upfronthosting.co.za>
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hi there,

it seems there is still a problem, at least with asinh(-2j)

see:

$ python
Python 2.6.5 (r265:79063, Apr  1 2010, 05:28:39) 
[GCC 4.4.3 20100316 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

>>> import numpy as np
>>> np.__version__
'1.4.0'
>>> import cmath
>>> cmath.asinh(-2j)
 (1.3169578969248166-1.5707963267948966j)

>>> np.arcsinh(-2j)
(-1.3169578969248164-1.5707963267948966j)

same behaviour for python3.1:
$ python3
Python 3.1.2 (r312:79147, Apr  1 2010, 09:12:21) 
[GCC 4.4.3 20100316 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

>>> import cmath
>>> cmath.asinh(-2j)
(1.3169578969248166-1.5707963267948966j)

cheers,
sebastien.
History
Date User Action Args
2010-05-11 13:29:41binssetrecipients: + bins, gvanrossum, loewis, jcea, mark.dickinson, alanmcintyre, inducer, christian.heimes
2010-05-11 13:29:40binssetmessageid: <1273584580.73.0.173270813567.issue1381@psf.upfronthosting.co.za>
2010-05-11 13:29:38binslinkissue1381 messages
2010-05-11 13:29:38binscreate