[sage-support] Re: Modularity of sage?

2008-12-11 Thread mabshoff
On Dec 11, 7:41 pm, chu-ching huang wrote: > In my case, I use some python packages that are not included in Sage. > It is very to solve the problem to enhance the python computing over > Sage: just create link from system to sage directory, This is possible > to reduce disk space a little. And

[sage-support] Re: Modularity of sage?

2008-12-11 Thread chu-ching huang
In my case, I use some python packages that are not included in Sage. It is very to solve the problem to enhance the python computing over Sage: just create link from system to sage directory, This is possible to reduce disk space a little. And it is possible to upgrade additional packages and Sag

[sage-support] Re: Modularity of sage?

2008-12-11 Thread William Stein
On Thu, Dec 11, 2008 at 5:52 PM, Alasdair wrote: > > I'd like to install Sage on a laptop with not much disk space left on > it. Now, I already have Maxima, Axiom, Pari/GP, and Python; is it > possible to just install some sort of "core" Sage from source code, > and still have the interfaces to

[sage-support] Re: Modularity of sage?

2008-12-11 Thread David Joyner
Hi Alasdair: I don't know the answer but I think it would be helpful to describe (a) how much disk space you have, (b) if there is a reason why you cannot delete maxima and python (you will get them with Sage and you can run them using "sage -python" and "sage -maxima"). - David On Thu, Dec 11,

[sage-support] Modularity of sage?

2008-12-11 Thread Alasdair
I'd like to install Sage on a laptop with not much disk space left on it. Now, I already have Maxima, Axiom, Pari/GP, and Python; is it possible to just install some sort of "core" Sage from source code, and still have the interfaces to the other CAS's? Thanks, Alasdair --~--~-~--~~-

[sage-support] Re: Adjoint of matrix over a ring?

2008-12-11 Thread Alasdair
Actually, this seems to work (using Maxima): M=random_matrix(IntegerModRing(10),3,3) MM=maxima(M) MA=matrix(IntegerModRing(10),MM.adjoint()) However, MA refuses to be typeset properly in the notebook - I consistently get LaTeX code, rather than a nicely typeset matrix. It would be nice to have

[sage-support] Re: Adjoint of matrix over a ring?

2008-12-11 Thread Craig Citro
> M=random_matrix(IntegerModRing(10),3,3) > > Now the adjoint certainly exists, but M.adjoint() isn't as yet > implemented over general rings - only over ZZ or QQ. How can I use, > say, Maxima or Pari within Sage to compute the adjoint of M? > It's pretty friendly to use Pari to do this ... in g

[sage-support] Re: Adjoint of matrix over a ring?

2008-12-11 Thread William Stein
On Thu, Dec 11, 2008 at 2:52 PM, Alasdair wrote: > > Suppose I create a matrix over the ring of integers mod 10: > > M=random_matrix(IntegerModRing(10),3,3) > > Now the adjoint certainly exists, but M.adjoint() isn't as yet > implemented over general rings - only over ZZ or QQ. How can I use, >

[sage-support] Adjoint of matrix over a ring?

2008-12-11 Thread Alasdair
Suppose I create a matrix over the ring of integers mod 10: M=random_matrix(IntegerModRing(10),3,3) Now the adjoint certainly exists, but M.adjoint() isn't as yet implemented over general rings - only over ZZ or QQ. How can I use, say, Maxima or Pari within Sage to compute the adjoint of M? Th

[sage-support] Re: python 3.0 (py3k or python 3000 too)

2008-12-11 Thread mabshoff
On Dec 11, 10:10 am, Owen <[EMAIL PROTECTED]> wrote: Hi Owen, > What are our plans for py3k? This has been discussed twice in the last couple weeks, so the answer is "wait and see". We will first upgrade to Python 2.6 once numpy supports it (roughly January 2009 unless something goes wrong) a

[sage-support] python 3.0 (py3k or python 3000 too)

2008-12-11 Thread Owen
What are our plans for py3k? I ask because there are some youth education efforts moving to 3.0 so that the kids don't get introduced to "legacy" concepts! Here's one: http://www.briggs.net.nz/log/writing/snake-wrangling-for-kids/ Thanks, -- Owen --~--~-~--~~~--

[sage-support] Re: Is there a utility to compute the value of the error function of a complex number?

2008-12-11 Thread Doug Bradshaw
Thanks! On Dec 9, 5:17 pm, Jason Grout <[EMAIL PROTECTED]> wrote: > Doug Bradshaw wrote: > > Okay, here's the story:  I wanted to plot a Fourier transform of a > > Gaussian that is truncated (mulitplied by unit stepfunction).  Using > > "integral", I got an answer that looked nice, but contained

[sage-support] Re: Spreading Sage

2008-12-11 Thread Harald Schilly
On Dec 11, 12:30 pm, Benjamin Otto <[EMAIL PROTECTED]> wrote: > I think you could greatly improve the number of people using sage, if the > install-process on windows were easier. Hi, we are aware of that but it's not that easy ;) Instead of vmware, there is also the possiblity (just a test) to

[sage-support] Spreading Sage

2008-12-11 Thread Benjamin Otto
Hi everyone, i am currently supporting a university class (mostly for future teachers) in germany in elementary number theory. I think the students really like using sage, but we had a rough start getting to install and start using sage on their windows boxes. I think you could greatly impro

[sage-support] Re: How do I create a matrix whose elements are functions of the row & column indices?

2008-12-11 Thread Robert Bradshaw
On Dec 10, 2008, at 4:23 PM, Alasdair wrote: > Thanks - I didn't know (being a COMPLETE newbie) about the "range" > command. Where in the documentation would I find this? - I've had a > bit of a search and couldn't find it. Python both the language that much of Sage is written in, and the use