[sage-support] Re: Solving for real and imaginary eigenvalues

2012-07-30 Thread Eric Kangas
Interesting that there are only 3 coefficients insterad of 4 by going through the process you had mentioned. I originally started this project on mathematica 6.0 student edition back in college, and I now need to recreate it in sage so I can publish a paper. -- To post to this group, send emai

[sage-support] Re: Sage server problems

2012-07-30 Thread Mike OS
Thanks for the help, Dima. I will install 5.1, but I'm still a bit unclear about the server issue. I have an Imac that I want to be a server for students while they are on campus, accessible via a web browser. We figured out the problem that I posted about: I can't run ./start_sage.sh in the bac

[sage-support] Dealing with 'NaN' values

2012-07-30 Thread v_2e
Hello! I'm working with some data arrays which have 'NaN's somewhere inside them. So I have a couple of questions on how to deal with such arrays. First, how does the 'mean()' function treats the 'NaN' values in the lists passed to it? Should it just ignore them and calculate the average valu

[sage-support] saving a java3d figure

2012-07-30 Thread entropy
Hi all! How does one save an image created using java3d. Eg., T=Torus(1, .5, color='red',opacity=0.3) T.show(aspect_ratio=1,frame=False,viewer='java3d') displays a beautiful, interactive torus. But how can I save it? thanks, Jesse -- To post to this group, send email to sage-support@googlegr

[sage-support] Re: Sage server problems

2012-07-30 Thread Dima Pasechnik
On Monday, 30 July 2012 23:17:50 UTC+8, Mike OS wrote: > > > After I start sage, apache is running, so it appear that sage starts > apache. > > sage 4.8 does not start apache. > In any case, I still don't understand what the problem is with the server. > > the problem seems to be that you

[sage-support] Re: Sage server problems

2012-07-30 Thread Mike OS
After I start sage, apache is running, so it appear that sage starts apache. In any case, I still don't understand what the problem is with the server. Mike On Thursday, July 26, 2012 9:40:24 PM UTC-7, Dima Pasechnik wrote: > > IMHO, Sage does not use apache at all. It runs its own webserver,

[sage-support] Permutation on different domain

2012-07-30 Thread Stefan van Zwam
Dear all, I can write sage: G = PermutationGroup([('a', 'b'), ('c', 'd')]) but not sage: P = Permutation([('a', 'b'), ('c', 'd')]) nor sage: P = PermutationGroupElement([('a', 'b'), ('c', 'd')]) What is the nicest way to create this permutation in one line, other than going for a Sage dict

Re: [sage-support] Re: Question about "sage-5.1-linux-64bit-ubuntu_8.04.4_lts-x86_64-Linux.tar.gz"

2012-07-30 Thread Daniel M.
Well, i dont know if i did it right, but i did export MAKE="make -j2" make build i did it cause i read the sage documentation about compiling from source, and i saw that in the MAKE varible we can define the number of jobs by means of the option -j# it took about 7 hours to compile from source

[sage-support] Old worksheets don't work after upgrading

2012-07-30 Thread mmarco
I have just upgraded a server from sage-4.7.1 to sage-5.1 and i have found a problem. When i open an old worksheet and try to run it, i get no response. If i download the worksheet to a file and then upload it again it works ok. Is it a known problem? I can solve the issue for myself easily,