Re: [Numpy-discussion] Slightly off-topic - accuracy of C exp function?

2014-04-23 Thread Nathaniel Smith
On Wed, Apr 23, 2014 at 6:22 AM, Matthew Brett matthew.br...@gmail.com wrote: Hi, I'm exploring Mingw-w64 for numpy building, and I've found it gives a slightly different answer for 'exp' than - say - gcc on OSX. The difference is of the order of the eps value for the output number (2 * eps

Re: [Numpy-discussion] Slightly off-topic - accuracy of C exp function?

2014-04-23 Thread David Cournapeau
On Wed, Apr 23, 2014 at 9:43 AM, Nathaniel Smith n...@pobox.com wrote: On Wed, Apr 23, 2014 at 6:22 AM, Matthew Brett matthew.br...@gmail.com wrote: Hi, I'm exploring Mingw-w64 for numpy building, and I've found it gives a slightly different answer for 'exp' than - say - gcc on OSX.

Re: [Numpy-discussion] 1.9.x branch

2014-04-23 Thread Sebastian Berg
On Di, 2014-04-22 at 15:35 -0600, Charles R Harris wrote: Hi All, I'd like to branch 1.9.x at the end of the month. There are a couple of reasons for the timing. First, we have a lot of new stuff in the development branch. Second, there is work ongoing in masked arrays that I'd like to

Re: [Numpy-discussion] 1.9.x branch

2014-04-23 Thread josef . pktd
On Wed, Apr 23, 2014 at 5:32 AM, Sebastian Berg sebast...@sipsolutions.net wrote: On Di, 2014-04-22 at 15:35 -0600, Charles R Harris wrote: Hi All, I'd like to branch 1.9.x at the end of the month. There are a couple of reasons for the timing. First, we have a lot of new stuff in the

Re: [Numpy-discussion] numerical gradient, Jacobian, and Hessian

2014-04-23 Thread Neal Becker
alex wrote: On Mon, Apr 21, 2014 at 3:13 AM, Eelco Hoogendoorn hoogendoorn.ee...@gmail.com wrote: As far as I can tell, [Theano] is actually the only tensor/ndarray aware differentiator out there And AlgoPy, a tensor/ndarray aware arbitrary order automatic differentiator

[Numpy-discussion] ANN: DistArray 0.2 -- first public development release

2014-04-23 Thread Kurt Smith
GitHub repo: https://github.com/enthought/distarray Documentation: http://distarray.readthedocs.org License: Three-clause BSD Python versions: 2.7 and 3.3 OS support: *nix and Mac OS X DistArray aims to bring the strengths of NumPy to data-parallel high-performance computing. It provides

Re: [Numpy-discussion] Slightly off-topic - accuracy of C exp function?

2014-04-23 Thread Matthew Brett
Hi, On Wed, Apr 23, 2014 at 1:43 AM, Nathaniel Smith n...@pobox.com wrote: On Wed, Apr 23, 2014 at 6:22 AM, Matthew Brett matthew.br...@gmail.com wrote: Hi, I'm exploring Mingw-w64 for numpy building, and I've found it gives a slightly different answer for 'exp' than - say - gcc on OSX.

Re: [Numpy-discussion] Test error with ATLAS, Windows 64 bit

2014-04-23 Thread Matthew Brett
Hi, On Tue, Apr 15, 2014 at 12:34 AM, Julian Taylor jtaylor.deb...@googlemail.com wrote: On Tue, Apr 15, 2014 at 4:30 AM, Matthew Brett matthew.br...@gmail.com wrote: It looks as though mingw-w64 is at fault, and I was confused (still am) because of the different behavior with double and a

Re: [Numpy-discussion] 1.9.x branch

2014-04-23 Thread Chris Barker
On Tue, Apr 22, 2014 at 2:35 PM, Charles R Harris charlesr.har...@gmail.com wrote: *Datetime timezone handling broken in 1.7.x*https://github.com/numpy/numpy/issues/3388 I don't think there is time to get this done for 1.9.0 and it needs to be pushed off to 1.10.0. *

Re: [Numpy-discussion] Test error with ATLAS, Windows 64 bit

2014-04-23 Thread Julian Taylor
On 23.04.2014 21:25, Matthew Brett wrote: Hi, On Tue, Apr 15, 2014 at 12:34 AM, Julian Taylor jtaylor.deb...@googlemail.com wrote: On Tue, Apr 15, 2014 at 4:30 AM, Matthew Brett matthew.br...@gmail.com wrote: It looks as though mingw-w64 is at fault, and I was confused (still am)

Re: [Numpy-discussion] Dates and times and Datetime64 (again)

2014-04-23 Thread Chris Barker
On Wed, Mar 19, 2014 at 7:07 PM, Sankarshan Mudkavi smudk...@uwaterloo.cawrote: I've written a rather rudimentary NEP, (lacking in technical details which I will hopefully add after some further discussion and receiving clarification/help on this thread). Please let me know how to proceed

Re: [Numpy-discussion] Dates and times and Datetime64 (again)

2014-04-23 Thread Sankarshan Mudkavi
Thank you very much, I will incorporate it! I've been quite busy for the past few weeks but I should be much freer after next week and can pick up on this (fixing the code and actually implement things). Cheers, Sankarshan On Apr 23, 2014, at 5:58 PM, Chris Barker chris.bar...@noaa.gov wrote:

Re: [Numpy-discussion] Test error with ATLAS, Windows 64 bit

2014-04-23 Thread Matthew Brett
Hi, On Wed, Apr 23, 2014 at 2:27 PM, Julian Taylor jtaylor.deb...@googlemail.com wrote: On 23.04.2014 21:25, Matthew Brett wrote: Hi, On Tue, Apr 15, 2014 at 12:34 AM, Julian Taylor jtaylor.deb...@googlemail.com wrote: On Tue, Apr 15, 2014 at 4:30 AM, Matthew Brett matthew.br...@gmail.com