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? 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 -~----------~----~----~----~------~----~------~--~---
