Hi, On Wed, Jul 22, 2009 at 7:47 AM, Burcin Erocal<bur...@erocal.org> wrote:
>> > Inability to substitute the argument of D[] has ensured that >> > I am forced out from using new sage symbolics for my own work. > > As I said above, you could have added a short term workaround for this, > once you start using cython to call pynac internals. As someone said, talk is cheap. FYI, I spent two full days trying to find a work-around that really works. May be I did stupid way but I would like to invite you to substitute f(x^2)=1 in the following simple expression by using any sage algorithm --------- h = f(x^2).diff(x)*(x+1/x) sage: h.subs(f(x^2)==1) 2*(x + 1/x)*x*D[0](f)(x^2) sage: h.subs(f(x^2).diff(x)==0) 2*(x + 1/x)*x*D[0](f)(x^2) --------- > I believe the effort could be better spent fixing the bugs you listed > above. Thanks for letting know your "belief". If Sage development is dictated by someone's belief rather than user's need, then I really shouldn't argue anymore. Cheers, Golam --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
