[sage-support] Question about subs in PolynomialSequence

2014-08-30 Thread Juan Grados
Dears members, I'm trying to use subs method in PolynomialSequence, but when I doing that I get the same PolynomialSequence. For example in code below my polynomial sequence PS has only one polynomial (P) ... I'm trying to use subs but I get the same polynomial. Where is wrong? reset() from sage.

[sage-support] Re: apparent numerical integration bug in sage

2014-08-30 Thread John Cremona
Pari's numerical integration does implement some very sophisticated algorithms, as implemented by Henri Cohen, who has given talks about how good they are but which stress how important it is to use the right variant, depending in the analytic properties of the function being integrated. If yo

Re: [sage-support] Re: apparent numerical integration bug in sage

2014-08-30 Thread Harald Schilly
On Sat, Aug 30, 2014 at 12:35 AM, Robert Dodier wrote: >> Harald, thanks. I think now we have six or seven ways to do quadrature in >> Sage! > > Yes, but most of them are QUADPACK, right? The whole idea of mpmath is to be standalone, right? https://github.com/fredrik-johansson/mpmath/blob/maste

Re: [sage-support] Re: Generating functions slow in Sage?

2014-08-30 Thread Kannappan Sampath
On Fri, Aug 29, 2014 at 2:06 PM, Dima Pasechnik wrote: > On 2014-08-29, kcrisman wrote: > > > > > > Some of you may want to know about this question: > > > > > http://stackoverflow.com/questions/25570037/best-language-to-do-some-annoying-generating-function-computations > > > > excerpt: > > > >