Re: [sage-devel] "Groups" in Sage

2014-07-23 Thread Nathann Cohen
Hello ! > The methods first and last give the first and last element of an > enumeration: I guess, but do we want them as methods of Group instances ? > This probably comes up for a cartesian product of cyclic permutation > groups, because those are considered finite enumerated sets: Some assum

Re: [sage-devel] "Groups" in Sage

2014-07-23 Thread Erik Massop
On Wed, 23 Jul 2014 08:59:24 -0400 David Joyner wrote: > "first" I assume means first factor in the product, and similarly for "last". > I don't know why they don't work. They should return the set > associated to the first (resp., last) factor in the product. The methods first and last give the

Re: [sage-devel] "Groups" in Sage

2014-07-23 Thread David Joyner
On Wed, Jul 23, 2014 at 7:56 AM, Nathann Cohen wrote: > Yo !! > >> Is this a confusion over categories, Nathann? > > > Or natural stupidity, your choice. > >> sage: G1 = CyclicPermutationGroup(5) >> sage: G2 = CyclicPermutationGroup(4) >> sage: D1 = G1.direct_product(G2,False) >> sage:

Re: [sage-devel] "Groups" in Sage

2014-07-23 Thread Nathann Cohen
Yo !! Is this a confusion over categories, Nathann? > Or natural stupidity, your choice. sage: G1 = CyclicPermutationGroup(5) > sage: G2 = CyclicPermutationGroup(4) > sage: D1 = G1.direct_product(G2,False) > sage: D2 = D1.direct_product(G2,False) > sage: D2.base_ring() > Integ

Re: [sage-devel] "Groups" in Sage

2014-07-23 Thread David Joyner
On Wed, Jul 23, 2014 at 7:26 AM, Nathann Cohen wrote: > Hello guys ! > > If anybody asks you whether Sage supports groups, here is an answer : > > sage: > AG=cartesian_product([CyclicPermutationGroup(5),CyclicPermutationGroup(4),CyclicPermutationGroup(4)]) Is this a confusion over categories, Na

[sage-devel] "Groups" in Sage

2014-07-23 Thread Nathann Cohen
Hello guys ! If anybody asks you whether Sage supports groups, here is an answer : sage: AG=cartesian_product([CyclicPermutationGroup(5),CyclicPermutationGroup(4),CyclicPermutationGroup(4)]) sage: AG.base_ring() # WTF ??? This has nothing to do here sage: AG.construction() # same comment sage: AG

Re: [sage-devel] Groups in Sage, libgap

2010-04-17 Thread William Stein
On Mon, Mar 8, 2010 at 4:58 PM, Mike OS wrote: > > I have some funding from my university to develop materials in SAGE > for use in my classes. The focus of the project is developing > educational materials but we'd also like to  contribute to SAGE > development. I posted to sage-edu about educati

Re: [sage-devel] Groups in Sage, libgap

2010-03-08 Thread Martin Albrecht
> A. William started a libgap, analogous to libsing, but it has lain > fallow for a while. As we understand things, there is a somewhat > different challenge with GAP.Much of Singular's functionality is > written in C so that SAGE can access it via Cython, whereas much of > GAP is written i

Re: [sage-devel] Groups in Sage, libgap

2010-03-08 Thread Minh Nguyen
Hi Mike, On Tue, Mar 9, 2010 at 10:58 AM, Mike OS wrote: > and we would like some > guidance on how we can contribute. You want to be familiar with the trac server [1] and the Developer's Guide [2]. At minimum, the first chapter of that guide is required reading for any Sage developer. See al

Re: [sage-devel] Groups in Sage, libgap

2010-03-08 Thread Minh Nguyen
Hi Mike, On Tue, Mar 9, 2010 at 10:58 AM, Mike OS wrote: > Comments? Just a heads up: Whatever you do, please try to use the word "Sage" in your discussion with Sage beginners or indeed with anyone. The Sage project has long abandoned the acronym "SAGE" in favour of "Sage". In the good old da

Re: [sage-devel] Groups in Sage, libgap

2010-03-08 Thread David Joyner
Awesome Mike - thanks for working on this! On Mon, Mar 8, 2010 at 6:58 PM, Mike OS wrote: > > I have some funding from my university to develop materials in SAGE > for use in my classes. The focus of the project is developing > educational materials but we'd also like to  contribute to SAGE > dev

[sage-devel] Groups in Sage, libgap

2010-03-08 Thread Mike OS
I have some funding from my university to develop materials in SAGE for use in my classes. The focus of the project is developing educational materials but we'd also like to contribute to SAGE development. I posted to sage-edu about educational issues. This post concerns development, specifical