On Sun, May 3, 2009 at 3:05 PM, Golam Mortuza Hossain <gmhoss...@gmail.com> wrote: > > Hi, > > On Sat, May 2, 2009 at 5:20 PM, William Stein <wst...@gmail.com> wrote: >> >> On Sat, May 2, 2009 at 12:54 PM, Maurizio <maurizio.gran...@gmail.com> wrote: >>> I had previously been interested in implementing delta dirac function >>> in pynac, especially for Laplace transform, so maybe I can give you a >>> couple of references. > > Thanks for the references. I briefly glanced through Sympy's implementation > to get some basic ideas. > > >>> My final comment is that, I have understood that I should better wait >>> for SAGE 4.0 to come back with these kind of issues, because that >>> would be the first release (if I got it right) with Pynac enabled >>> (maybe by default?), and so after that we can start working on >>> building something on top of it. >> >> Yes, that is exactly right. > > OK, then I will wait for Sage 4.0 to to come before doing anything > with Dirac delta. > >>>> Currently, "substitute" works, if keyword is a symbolic variable. >>>> It doesn't seem to work when keyword is a symbolic function. > > It seems, I can use "subs_expr" method which is already in Sage, > to substitute a symbolic function. So this one helps to remove > one of the difficulties. > > >> Don't worry -- 4.0 is indeed coming soon. > > Thanks for the update. Will it be around a month? >
Our current goal is to release it within two weeks. William --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
