On Wed, Jul 22, 2009 at 11:21 AM, Michael
Madison<[email protected]> wrote:
>
> Robert, Thanks for the feedback. I don't want to wait for 4.1.1 so I
> will attempt to follow the Sage Days 16 "How to get started with
> developing Sage" to apply the patches. At first look this does not
> look straight forward. Mike
Just do:
sage:
hg_sage.apply('http://trac.sagemath.org/sage_trac/attachment/ticket/6438/6438-cython.patch')
sage:
hg_sage.apply('http://trac.sagemath.org/sage_trac/attachment/ticket/4571/4571-numpy-pxd.patch')
sage:
hg_sage.apply('http://trac.sagemath.org/sage_trac/attachment/ticket/4571/4571-more-fixes.patch')
sage: quit
sage -br
and it should work, I guess.
William
>
> On Jul 22, 8:32 am, Robert Bradshaw <[email protected]>
> wrote:
>> After applying bothhttp://trac.sagemath.org/sage_trac/ticket/6438
>> andhttp://trac.sagemath.org/sage_trac/ticket/4571, the notebook
>> seems to work just as well as the command line, or just raw Cython.
>> Hopefully this makes it into 4.1.1.
>>
>> As for complex types, there's still some issues of doing arithmetic
>> with numpy-defined types. You have to declare them natively
>>
>> %cython
>>
>> import numpy as np
>> cimport numpy as np
>>
>> def test_array():
>> cdef np.ndarray[double complex, ndim=1] a = np.zeros(5,
>> dtype=np.complex128)
>> a[0] = 3+4j
>> a[1] = 1j
>> cdef double complex z = a[0] * a[1]
>> print z
>>
>> test_array()
>> (-4+3j)
>>
>> - Robert
>>
>> On Jul 22, 2009, at 5:46 AM, Michael Madison wrote:
>>
>>
>>
>>
>>
>> > Ethen, Sorry I have not tried. I wanted to speed up some molecular
>> > dynamics code I have been playing with that uses numpy and I actually
>> > only need the real types. Also, I have been just working with the
>> > notebooks. For VMWARE the graphics does not work outside of the
>> > notebook interface. Since the ctypedef assignments like "ctypedef
>> > numpy.float_t Dtype_t" does not currently work in sage with cython I
>> > was trying to pigy back off of your questions to see if I could get it
>> > to work before they fix the bug in Sage. I see a lot of potential for
>> > Sage for Physics and engineering applications if a few things get
>> > fixed. Mike
>>
>> > On Jul 21, 5:15 pm, Ethan Van Andel <[email protected]> wrote:
>> >> I think it only works outside, when compiling extensions for sage.
>> >> However, I am also getting issues with complex types after the fix,
>> >> did you get them to compile regularly outside?
>>
>> >> Ethan- Hide quoted text -
>>
>> - Show quoted text -
> >
>
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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