Re: [sage-devel] On scientific computing, Python and Julia

2014-07-17 Thread Nils Bruin
On Thursday, July 17, 2014 10:35:32 PM UTC-7, Robert Bradshaw wrote: > I'm not sure multimethods alone are enough to solve issues with Sage's > type system (e.g. coercion, where the result of a+b may happen in a > completely new domain) but they could certainly help. > Indeed. If you want mult

Re: [sage-devel] On scientific computing, Python and Julia

2014-07-17 Thread Robert Bradshaw
On Thu, Jul 17, 2014 at 6:34 AM, Luca De Feo wrote: > I guess these two posts by G. Hoare (creator of the Rust language) are > of interest to the community: > > http://graydon2.dreamwidth.org/3186.html > http://graydon2.dreamwidth.org/189377.html > > See also the presentation linked therein: >

Re: [sage-devel] Call for binary on OS X 10.5

2014-07-17 Thread François Bissey
OK supposing I make such a binary, where do I upload it? Should I set specific variables to generate a redistributable binary? Francois On Fri, 04 Jul 2014 19:44:36 Francois Bissey wrote: > I have one such machine but I am on holidays. I can look into it > after the 15th. > > François > > On 5/

Re: [sage-devel] backups of the git tree ?

2014-07-17 Thread Volker Braun
Depends on how you set up your remote (whether you add the "-t master" to only track a specific branch). On Thursday, July 17, 2014 1:47:32 PM UTC-4, John Cremona wrote: > > On 17 July 2014 12:56, Ralf Hemmecke > > wrote: > >> what if the russians suddendly attack the US > > > > When does it

Re: [sage-devel] backups of the git tree ?

2014-07-17 Thread John Cremona
On 17 July 2014 12:56, Ralf Hemmecke wrote: >> what if the russians suddendly attack the US > > When does it stop that everyone fears the other for no good reason. I > guess if you ask an ordinary russian person, he fears being invaded by > the US. > > Are we still in the cold war? > >> reach our

[sage-devel] Re: Harmonic numbers and Stirling numbers

2014-07-17 Thread Ralf Stephan
On Saturday, February 21, 2009 4:58:02 PM UTC+1, Fredrik Johansson wrote: > > Hi, > > Looking around, it seems Sage does not yet implement harmonic numbers > (except via SymPy)? If anyone is interested, I benchmarked a few > Better late than never: http://trac.sagemath.org/ticket/16671 Regards,

[sage-devel] Re: Category framework strangeness

2014-07-17 Thread Volker Braun
sage: GF(2).categories() [Join of Category of finite fields and Category of subquotients of monoids and Category of quotients of semigroups, Category of finite fields, Category of fields, Category of euclidean domains, Category of division rings, Category of principal ideal domains, Category

Re: [sage-devel] Category framework strangeness

2014-07-17 Thread Vincent Delecroix
Whaou. I guess it means: Category of (associative additive) (commutative additive) (associative additive) unital distributive magmas and additive magmas. But definitely, there is something wrong ;-) Vincent 2014-07-17 17:31 UTC+02:00, Jean-Pierre Flori : > When I define some finite field and ask

[sage-devel] Category framework strangeness

2014-07-17 Thread Jean-Pierre Flori
When I define some finite field and ask for the categories it belongs to, one of them is: Category of associative additive commutative additive associative additive unital distributive magmas and additive magmas That's a nice bunch of properties. -- You received this message because you are su

[sage-devel] On scientific computing, Python and Julia

2014-07-17 Thread Luca De Feo
I guess these two posts by G. Hoare (creator of the Rust language) are of interest to the community: http://graydon2.dreamwidth.org/3186.html http://graydon2.dreamwidth.org/189377.html See also the presentation linked therein: http://nbviewer.ipython.org/gist/StefanKarpinski/b8fe9dbb36c142

Re: [sage-devel] backups of the git tree ?

2014-07-17 Thread Ralf Hemmecke
> what if the russians suddendly attack the US When does it stop that everyone fears the other for no good reason. I guess if you ask an ordinary russian person, he fears being invaded by the US. Are we still in the cold war? > reach our server and achieve to erase our data ? (or what if our har

Re: [sage-devel] backups of the git tree ?

2014-07-17 Thread Robert Pollak
Am 17.07.2014 11:31, schrieb Nathann Cohen: > what if the russians suddendly attack the US, reach our > server and achieve to erase our data ? (or what if our hard drive burns ?) In Git, cloned Repositories are essentially backups of each other. So when a "central" repository vanishes, just recrea

[sage-devel] Documentation of assume in reference manual

2014-07-17 Thread Clemens Heuberger
The function sage.symbolic.assumptions.assume (and related functions) have documentation in their docstrings; however, the corresponding file src/sage/symbolic/assumptions.py is not contained in any .rst file for the reference manual. Therefore, the documentation of the function assume() does not s

[sage-devel] backups of the git tree ?

2014-07-17 Thread Nathann Cohen
Hellooo everybody ! I just deleted some functions which had become a commit on our git server yesterday. And I wondered : what if the russians suddendly attack the US, reach our server and achieve to erase our data ? (or what if our hard drive burns ?) I would probably be enrolled quickly to