[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread Robert Bradshaw
On Jun 12, 2007, at 11:31 AM, Michel wrote: > Ideally I should be the element x in ZZ[x]/(x^2+1) (and not QQ[x]/ > (x^2+1)). I agree, but currently we have much better support for number fields than orders or quotient rings. Hopefully that'll change (r.e. David Roe's SEP). > Likewise zeta[n

[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread Michel
Ideally I should be the element x in ZZ[x]/(x^2+1) (and not QQ[x]/ (x^2+1)). Likewise zeta[n] could be the element y in ZZ[y]/(y^n-1). These rings should have automatic coercions to many other rings (including of course the symbolic ring). Michel On Jun 12, 8:04 pm, Robert Bradshaw <[EMAIL PR

[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread Robert Bradshaw
On Jun 12, 2007, at 8:21 AM, Nick Alexander wrote: > "William Stein" <[EMAIL PROTECTED]> writes: > >> On 6/12/07, Robert Bradshaw <[EMAIL PROTECTED]> wrote: >>> I think the default I should belong to the number field Q[I] (or >>> perhaps even the ring of integers) to start with (together with a >

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Justin C. Walker
On Jun 12, 2007, at 11:17 AM, Martin Albrecht wrote: > >> I agree. I really like v1 but with the ???/verbose box deleted. > > Fixed. Same file. I like it. Count me in for 1 shirt, size large...how much for S+H, since I'm not in the neighborhood? Justin -- Justin C. Walker, Curmudgeon-At-L

[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread Nick Alexander
"William Stein" <[EMAIL PROTECTED]> writes: > On 6/12/07, Robert Bradshaw <[EMAIL PROTECTED]> wrote: >> I think the default I should belong to the number field Q[I] (or >> perhaps even the ring of integers) to start with (together with a >> fixed embedding into C). It would be coerced into C, the

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Martin Albrecht
> I agree. I really like v1 but with the ???/verbose box deleted. Fixed. Same file. Martin -- name: Martin Albrecht _pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99 _www: http://www.informatik.uni-bremen.de/~malb _jab: [EMAIL PROTECTED] --~--~-~--~~

[sage-devel] Re: new t-shirt thread (pun intended!)

2007-06-12 Thread William Stein
On 6/12/07, David Joyner <[EMAIL PROTECTED]> wrote: > On 6/12/07, Craig Citro <[EMAIL PROTECTED]> wrote: > > hey all, > > > > so here are three ideas for the sd4 shirt, called flier.pdf, > > flier_plain.pdf, and flier2.pdf in: > > > > http://sage.math.washington.edu/home/citro/sd4_shirt/ > > > > T

[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread William Stein
On 6/12/07, Robert Bradshaw <[EMAIL PROTECTED]> wrote: > I think the default I should belong to the number field Q[I] (or > perhaps even the ring of integers) to start with (together with a > fixed embedding into C). It would be coerced into C, the symbolic > ring, etc. as needed. With the curren

[sage-devel] Re: Sage crash on "fraction in for" bug?

2007-06-12 Thread William Stein
On 6/12/07, Liran Orevi <\> wrote: > Hello, > > 1)I've wanted to write this on Sage-Trac but have no user. > > 2)Sage crashes on: > > sage: for i in range(1,6,0.2): > ... print i > > Wheras in phyton: > > >>>for i in range(3,7,0.2): > ... a=5 > ... > __main__:1: DeprecationWarning: integer

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread William Stein
On 6/12/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > The field of question marks kinda bugs me. With a label of "verbose", it > looks like there's a bunch of unknowns / unintelligable responses... > I agree. I really like v1 but with the ???/verbose box deleted. William --~--~---

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread boothby
The field of question marks kinda bugs me. With a label of "verbose", it looks like there's a bunch of unknowns / unintelligable responses... On Tue, 12 Jun 2007, Robert Bradshaw wrote: > > I really like the sparse layout too. If we only have one side, how > about something like this > > http

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Martin Albrecht
On Tuesday 12 June 2007 12:03, Robert Bradshaw wrote: > I like v1 better. My only thoughts are that the firefox logo looks to > "empty" at the bottom, and I like the slightly rounded corners on the > SAGE logo. I have updated the v1 design based on your suggestions. Martin -- name: Martin Albr

[sage-devel] Re: new t-shirt thread (pun intended!)

2007-06-12 Thread David Joyner
On 6/12/07, Craig Citro <[EMAIL PROTECTED]> wrote: > hey all, > > so here are three ideas for the sd4 shirt, called flier.pdf, > flier_plain.pdf, and flier2.pdf in: > > http://sage.math.washington.edu/home/citro/sd4_shirt/ > > They're all basic variations on the sagemath.org flier, with the key >

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Robert Bradshaw
I like v1 better. My only thoughts are that the firefox logo looks to "empty" at the bottom, and I like the slightly rounded corners on the SAGE logo. - Robert On Jun 12, 2007, at 2:58 AM, Martin Albrecht wrote: > > On Tuesday 12 June 2007 07:00, Craig Citro wrote: >> No, his is grayscale.

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Martin Albrecht
On Tuesday 12 June 2007 07:00, Craig Citro wrote: > No, his is grayscale. We can't have any shades of gray (man, there are so > many good jokes here) -- just black pixels & white pixels. For instance, > his "unified," "python," and "web-aware" are all grayscale. I've been > playing with cleaning u

[sage-devel] Re: Complex numers in symbolic expressions.

2007-06-12 Thread Robert Bradshaw
I think the default I should belong to the number field Q[I] (or perhaps even the ring of integers) to start with (together with a fixed embedding into C). It would be coerced into C, the symbolic ring, etc. as needed. This doesn't resolve your second issue though, I think William's simpi

[sage-devel] Re: SD 4 t-shirt

2007-06-12 Thread Robert Bradshaw
I really like the sparse layout too. If we only have one side, how about something like this http://sage.math.washington.edu/home/robertwb/sd4-shirt/(just a mockup based on Martin's stuff). Who has the "original" infinity-sage logo? I'm sure that would go fine black and white. I put a BW ve

[sage-devel] Sage Enhancement Proposal: Number Fields

2007-06-12 Thread David Roe
For those of you interested in improving number fields in Sage (especially those of you who won't be at SD4), I've posted a SEP on the wiki. As you will be able to tell, I was rushed at the end. But I would like to hear peoples' comments. http://www.sagemath.org:9001/days4/projects/numbertheory/