On Wed, Oct 27, 2010 at 8:56 PM, kcrisman <kcris...@gmail.com> wrote:
>
>
> On Oct 27, 11:16 pm, William Stein <wst...@gmail.com> wrote:
>> On Wed, Oct 27, 2010 at 7:52 PM, kcrisman <kcris...@gmail.com> wrote:
>>
>> >> The Sage packages that directly depend on Fortran are:  R, f2c,
>> >> lapack, blas, numpy, scipy, cvxopt:
>>
>> >> Note that numpy can be built and used *without* fortran, e.g., when I
>> >> removed fortran from psage I kept numpy...
>>
>> > So a non-Fortran Sage would lose a lot of numerical ability (mpmath
>> > would stay, but it looks like GSL depends on blas/atlas/something with
>> > Fortran)
>>
>> numpy and GSL *BOTH* stay.  The entire point of GSL is that it is
>> numerical code written in C instead of Fortran.
>
> Okay - the website seemed to indicate dependence on various things
> that have fortran, but it did say "weak" dependence so maybe the core
> functionality doesn't need that?  "GSL requires a BLAS library for
> vector and matrix operations" but maybe that doesn't have to be
> fortran, or maybe that's irrelevant to the main numerical stuff one
> would care about.  Thanks for clarifying that, anyway.
>
>> In fact, GSL is in psage.     You might even try downloading and
>> building the latest version of psage:
>>
>>    http://purple.sagemath.org/source/?C=N;O=D
>>
>
> Not a bad idea, of course - I'll try this on my Tiger PPC Mac tomorrow
> to make sure it works fine :) though it certainly should.

It probably will, since it's basically just sage.  That said, I list
the sorted platforms at http://purple.sagemath.org/ as

   "Supported platforms: 64-bit Ubuntu Linux and OS X 10.6"

 -- William

>
> - kcrisman
>
> --
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-- 
William Stein
Professor of Mathematics
University of Washington
http://wstein.org

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