Hi Henryk, On Wed, Oct 29, 2008 at 5:26 PM, Henryk Trappmann <[EMAIL PROTECTED]> wrote: > Ya, my code does that too. I even implemented formal Laurent-Series > for some operations (negative lower bound). > > Many interesting things in power series manipulation are not > implemented in your LazyPowerSeriesRing, for example: > reciprocal 1/f, non-integer powers, inverse power series, non-integer > iteration, and not to mention a lot of base series (log(x+1), sin, > cos, tan, arcsin, arctan, sinh, ..., they are much slower if produced > from derivation of functions.) > I did not even find a constructor for the power series development of > a given function at a certain development point (taylor series).
Yep, I didn't implement many of these things since I didn't have a need/use for them at the time. > So how do we continue here? There is the possibility of a merge or of > a competition, I dont know whether the latter is possible at all in > Sage (two packages with similar functionality but different > implementation). Perhaps one would put them in different topics > combinatorics vs. analysis, or something. Any good suggestions? Is your code posted anywhere? I'm sure we can come up with a way to merge the two implementations. --Mike --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
