[sage-support] Re: sage 4.1.2 MacOSX 10.4.11 set-up error

2009-10-19 Thread abaco68
Dear Stan I found it here, for instance: http://mirror.switch.ch/mirror/sagemath/osx/index.html but indeed only for PowerPC Regards Giovanni On Oct 20, 8:32 am, Stan Schymanski wrote: > Dear Giovanni, > > Could you tell me where you found a dmg for 10.4.11? I tried to compile > from source

[sage-support] Re: sage 4.1.2 MacOSX 10.4.11 set-up error

2009-10-19 Thread Stan Schymanski
Dear Giovanni, Could you tell me where you found a dmg for 10.4.11? I tried to compile from source on my 10.4.11 box without success, then I tried to download a binary instead, but only found binaries for 10.5 and 10.6. Cheers, Stan abaco68 wrote: > Hi > I have installed sage 4.1.2 on a Power

[sage-support] Re: powers of polynomials in characteristic p>0

2009-10-19 Thread Robert Bradshaw
Interesting point, I've made http://trac.sagemath.org/sage_trac/ticket/7253 On Oct 19, 2009, at 1:49 PM, finotti wrote: > > Dear all, > > I need to compute some larger powers of polynomials in characteristic > p>0. I've noticed that Sage does not do it very efficiently, as even > f^(p^n) takes

[sage-support] Re: 10.6 - 64bit binary

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 2:40 PM, David M. Monarres wrote: > > Is there a good reason to use the 64 bit 10.6 binaries when there > seems to be quite a few failed doctests (at least on my machine)?  Is > there a good reason to use the 64 bit binaries when they are still > buggy and the 32-bit 10.5

[sage-support] Re: Why do I get "Too many open files"?

2009-10-19 Thread Jeff Post
> On Mon, Oct 19, 2009 at 7:17 PM, Le Fou Volant wrote: > > Hello, > > > > I finally got around to installing Sage on another machine I work on. > > This machine runs Linux Centos. > > I'm still trying to get Sage to work on CentOS 4.7. Any pointers you might have would be greatly appreciated.

[sage-support] implicit differentiation difficulties

2009-10-19 Thread Alex Raichev
Hi all: I'm trying to differentiate implicitly and solve for the derivative but get an error. Does anyone know what's wrong? Alex -- | Sage Version 4.1.2, Release Date: 2009-10-13 | | Type notebook() for

[sage-support] Re: Why do I get "Too many open files"?

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 7:17 PM, Le Fou Volant wrote: > Hello, > > I finally got around to installing Sage on another machine I work on. > This machine runs Linux Centos. The problem I had with my Mac is > quantitatively different, but qualitatively the same: > I can open 240 files in a for loop

[sage-support] Re: Complex Integration

2009-10-19 Thread kcrisman
On Oct 19, 1:40 pm, Sterling wrote: > Does SAGE support complex integration? This doesn't seem to work: > z = var('z') > integrate(1/z,z,-i,i) > It returns an error saying the lower limit needs to be real. (Wouldn't this depend on the path of integration and branches in any case, since this ha

[sage-support] Re: 10.6 - 64bit binary

2009-10-19 Thread David M. Monarres
yes. -- David Monarres dmmonar...@gmail.com "There... I've run rings 'round you logically" -- Monty Python's Flying Circus On Oct 19, 2009, at 3:45 PM, William Stein wrote: > > On Mon, Oct 19, 2009 at 2:40 PM, David M. Monarres > wrote: >> >> Is there a good reason to use the 64 bit 10.6 binar

[sage-support] Re: 10.6 - 64bit binary

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 2:40 PM, David M. Monarres wrote: > > Is there a good reason to use the 64 bit 10.6 binaries when there > seems to be quite a few failed doctests (at least on my machine)?  Is > there a good reason to use the 64 bit binaries when they are still > buggy and the 32-bit 10.5

[sage-support] Re: maximum

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 12:22 PM, finotti wrote: > > Dear all, > > I see that "max" in Sage is not the "max" of Python: > > = > Python 2.5.2 (r252:60911, Jan  4 2009, 21:59:32) > [GCC 4.3.2] on linux2 > Type "help", "copyright", "credits" or "license" for more informat

[sage-support] 10.6 - 64bit binary

2009-10-19 Thread David M . Monarres
Is there a good reason to use the 64 bit 10.6 binaries when there seems to be quite a few failed doctests (at least on my machine)? Is there a good reason to use the 64 bit binaries when they are still buggy and the 32-bit 10.5 ones seem to work fine? -- D. M. Monarres dmmonar...@gmail

[sage-support] powers of polynomials in characteristic p>0

2009-10-19 Thread finotti
Dear all, I need to compute some larger powers of polynomials in characteristic p>0. I've noticed that Sage does not do it very efficiently, as even f^(p^n) takes a long time. I wrote the following code then: # write m in base n (as vector): # [v0, v1, ..., vk]

[sage-support] maximum

2009-10-19 Thread finotti
Dear all, I see that "max" in Sage is not the "max" of Python: = Python 2.5.2 (r252:60911, Jan 4 2009, 21:59:32) [GCC 4.3.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> v=[10,2,3,1,45] >>> max(v) 45 ==

[sage-support] Re: Sharing worksheets (not via a server)?

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 12:19 PM, Simon King wrote: > > Hi William! > > On 19 Okt., 19:53, William Stein wrote: >> Maybe we should change the name to "Save worksheet to a file..."? > > +1! > > Does the word "download" in English have a meaning different from "get > data from the web"? > My impre

[sage-support] Re: Sharing worksheets (not via a server)?

2009-10-19 Thread Simon King
Hi William! On 19 Okt., 19:53, William Stein wrote: > Maybe we should change the name to "Save worksheet to a file..."? +1! Does the word "download" in English have a meaning different from "get data from the web"? My impression is that Germans would use the word "download" only in that sense

[sage-support] Re: Sharing worksheets (not via a server)?

2009-10-19 Thread Carlo Hamalainen
On Mon, Oct 19, 2009 at 7:53 PM, William Stein wrote: > Maybe we should change the name to "Save worksheet to a file..."? +1 "Save worksheet to a file" is much more obvious in meaning. -- Carlo Hamalainen http://carlo-hamalainen.net --~--~-~--~~~---~--~~ To po

[sage-support] Re: Sharing worksheets (not via a server)?

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 10:51 AM, Le Fou Volant wrote: > > Thank you very much. That's the one thing I did not try > (probably because at the time "download" could not mean > what it seems to mean in "download to a file"). > > Alexandre Guillaume Maybe we should change the name to "Save workshee

[sage-support] sage 4.1.2 MacOSX 10.4.11 set-up error

2009-10-19 Thread abaco68
Hi I have installed sage 4.1.2 on a PowerBook 5.58 with MacOSX 10.4.11 a cording to the procedure detailed in the README.txt file. The first time I run sage it tries to initialize the installation but it fails with the error message enclosed hereafter. I have tried twice to download the .dmg file

[sage-support] Re: Sharing worksheets (not via a server)?

2009-10-19 Thread Le Fou Volant
Thank you very much. That's the one thing I did not try (probably because at the time "download" could not mean what it seems to mean in "download to a file"). Alexandre Guillaume On Oct 18, 6:10 pm, William Stein wrote: > On Sun, Oct 18, 2009 at 4:59 PM, Le Fou Volant > wrote: > > > > > Hel

[sage-support] Complex Integration

2009-10-19 Thread Sterling
Does SAGE support complex integration? This doesn't seem to work: z = var('z') integrate(1/z,z,-i,i) It returns an error saying the lower limit needs to be real. No rush, Sterling --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups

[sage-support] Re: problem with a couple definite integrals

2009-10-19 Thread Jim Clark
Thanks for the response, kcrisman. The questions you ask are exactly what I've been pondering myself. After much additional messing around, I found the problem (and its solution): the factor in front should be 2/a, not a/2: sage: var('a, n, x') (a, n, x) sage: assume(a>0) sage: assume(n,'int

[sage-support] Re: symmetric polynomials

2009-10-19 Thread Marshall Hampton
Groebner bases seem to do this relatively quickly. Here's your last example done in a crude way, seems almost instantaneous. R. = PolynomialRing(QQ,order = TermOrder ('degrevlex',4)+TermOrder('degrevlex',3)) foo= (x0 + x1 + x2 + x3)^3 sym = [] xvars = [x0,x1,x2,x3] for i in range(1,4): temp

[sage-support] Re: slope function

2009-10-19 Thread Mikie
Thanks, either suggestion worked. I was doing this in my definite integral function. Robert, someone hacked my e-mail. I just sent you a new e-mail this morning. I would really like to collaborate with you on the server, if you are interested. We are doing very similar things. Do you have tim

[sage-support] Re: symmetric polynomials

2009-10-19 Thread William Stein
On Mon, Oct 19, 2009 at 8:47 AM, Pierre wrote: > > Thanks. This works, but it is so very slow : > > sage: foo= (x0 + x1 + x2 + x3)^1; > sage.libs.symmetrica.all.t_POLYNOM_ELMSYM( foo ) > e[1]  #immediate > > sage: foo= (x0 + x1 + x2 + x3)^2; > sage.libs.symmetrica.all.t_POLYNOM_ELMSYM( foo )

[sage-support] Re: symmetric polynomials

2009-10-19 Thread Pierre
Thanks. This works, but it is so very slow : sage: foo= (x0 + x1 + x2 + x3)^1; sage.libs.symmetrica.all.t_POLYNOM_ELMSYM( foo ) e[1] #immediate sage: foo= (x0 + x1 + x2 + x3)^2; sage.libs.symmetrica.all.t_POLYNOM_ELMSYM( foo ) e[1, 1] #also immediate sage: foo= (x0 + x1 + x2 + x3)^3; sage.

[sage-support] Re: symmetric polynomials

2009-10-19 Thread Mike Hansen
Hello, On Mon, Oct 19, 2009 at 9:13 PM, Pierre wrote: > > hi, > > i've got some polynomial which happens to be symmetrical. Is there a > quick and easy way to write it in terms of elementary symmetric > functions ? Currently, it's not the most straightforward: sage: e = SFAElementary(QQ) sage:

[sage-support] symmetric polynomials

2009-10-19 Thread Pierre
hi, i've got some polynomial which happens to be symmetrical. Is there a quick and easy way to write it in terms of elementary symmetric functions ? i know there is no efficient way to do this for very large polynomials, but this one is reasonable. I also remember implementing exactly this in C+

[sage-support] Re: problem with a couple definite integrals

2009-10-19 Thread kcrisman
On Oct 19, 1:02 am, Jim Clark wrote: > Hi sage supporters, > > I am attempting to verify some properties of the quantum mechanics   > "particle in a box" problem. > integral() is returning the wrong results for and . > I can't figure out what I might be doing wrong. > > To find : > ---