[sage-support] Re: Automatic Differentiation in Sage?

2018-06-22 Thread Matthias Goerner
The function might be much more complicated than that so that symbolic differentiation won't scale unlike automatic differentiation. It might also be that I can't write down the function as a symbolic expression without going through a lot of extra work. The application I have in mind is applyi

[sage-support] Re: Automatic Differentiation in Sage?

2018-06-22 Thread Dima Pasechnik
On Friday, June 22, 2018 at 9:14:17 PM UTC+1, Matthias Goerner wrote: > > I have a function such as cos(x/y) and values for x and y and want to use > automatic differentiation (a la wikipedia article >

[sage-support] Automatic Differentiation in Sage?

2018-06-22 Thread Matthias Goerner
I have a function such as cos(x/y) and values for x and y and want to use automatic differentiation (a la wikipedia article ) to find the value and derivatives with respect to x and y. Can this

Re: [sage-support] Re: Sage's animations and windows 10

2018-06-22 Thread Erik Bray
On Thu, Jun 14, 2018 at 11:46 AM Vincent Delecroix <20100.delecr...@gmail.com> wrote: > > On 01/06/2018 23:40, Erik Bray wrote: > > On Friday, June 1, 2018 at 3:32:19 PM UTC+2, Francesco wrote: > >> > >> Hello everyone. > >> My installation is Sage 8.2 and windows 10 64bit, with imagemagick and > >

[sage-support] Re: Reducing coefficients

2018-06-22 Thread Andrew
OK, it seems that it is the nesting of LaurentPolynomial rings that causes the problems. it is slightly cumbersome in my real application but work I can solve my problem by creating my creating my coefficient rings only once, without nesting them. Andrew On Friday, 22 June 2018 13:01:00 UTC+2,

[sage-support] Re: Reducing coefficients

2018-06-22 Thread Andrew
Under the hood these are the sort of calculations that my code is doing: {{{ sage: Rq. = LaurentPolynomialRing(ZZ,'q') sage: Ruq. = PolynomialRing(Rq,'u') sage: mat = matrix([[q-q,u-q],[1,1]]) Under the hood these are the sort of calculations that my code is doing: sage: Rq. = LaurentPolynomialRin

[sage-support] Re: Reducing coefficients

2018-06-22 Thread slelievre
Yes, a reproducible example of input would help explore this. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post