[sage-support] Re: Two equivalent ways of inputting a function involving gamma function yield different result?

2010-12-22 Thread Jason Grout
On 12/23/10 1:02 AM, KvS wrote: In addition to the previous post, if I change the contents of the first cell to f=BetaLP1.getkthMomentAt(1,1) g=symbolic_expression(str(f(x))).function(x) print g(0) it does yield 1 as well. Any hints? Can you post the code for BetaLP1.getkthMomentAt(1,1) so w

[sage-support] Re: Two equivalent ways of inputting a function involving gamma function yield different result?

2010-12-22 Thread KvS
In addition to the previous post, if I change the contents of the first cell to f=BetaLP1.getkthMomentAt(1,1) g=symbolic_expression(str(f(x))).function(x) print g(0) it does yield 1 as well. Any hints? Thanks, Kees -- To post to this group, send email to sage-support@googlegroups.com To unsubs

[sage-support] Two equivalent ways of inputting a function involving gamma function yield different result?

2010-12-22 Thread KvS
Hi all, I didn't know how to make the title any clearer, I'm sorry. The problem is as follows (on Sage v 4.6). Running the following piece of code (BetaLP1 is some class): f=BetaLP1.getkthMomentAt(1,1) print 'f:',f print f(0) yields the following error: f: x |--> e^(9/200*x^2 + 4/3*sqrt(pi)*gam

Re: [sage-support] Root finding of a real number

2010-12-22 Thread Mike Hansen
On Wed, Dec 22, 2010 at 9:15 PM, Santanu Sarkar wrote: > How one can find 10-th root of a real number in Sage? You can use the nth_root() method on real numbers: sage: f = 3.1415; f 3.141500 sage: f.nth_root(10) 1.12127904623998 --Mike -- To post to this group, send email to sage-supp

[sage-support] Root finding of a real number

2010-12-22 Thread Santanu Sarkar
How one can find 10-th root of a real number in Sage? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support U

[sage-support] Re: G.are_equivalent_cusps

2010-12-22 Thread John Cremona
Victor, eclib provides some (at least) of what you need, and is partly wrapped in Sage. Chris Wuthrich and I have been working on this recently. For example, eclib contains a program which does the following (this is just a simple interface to underlying functionality): Enter curve: [0,-1,1,0,0]

[sage-support] Re: G.are_equivalent_cusps

2010-12-22 Thread John Cremona
Victor, First of all I invite you to join sage-nt, the sage number theory group! Secondly... On Dec 21, 5:37 pm, victor wrote: > Let m be a modular symbol for the congruence subgroup G=Gamma0(N) for > some N. > > If one assumes m is cuspidal, there exist elements g in G such that m > is equival

[sage-support] failed to import mpi4py.MPI

2010-12-22 Thread brunetto
Hi all!! I'm using Sage 4.6 compiled from source on a 4 CPU (Intel Xeon) server with Ubuntu 10.04 and on a 114 CPU (Intel Xeon) cluster with Rocks (now I'm use only one node with 16 CPU). I'm trying to run my python scripts that include mpi4py. On the server I get this error sage: import mpi4py.