On Oct 12, 7:36 am, "Joel B. Mohler" <[EMAIL PROTECTED]> wrote:
> This e-mail is too long. Here's the bottom line: I suggest that the
> coefficient method on a multivariate polynomial ring take a dictionary
> indicating the variables and degrees that you want to restrict your attention
> to.
Sounds like a great idea.
> Does anyone have any objection? It actually seems like a dictionary of
> variables whose exponents you want to control would make a much better
> interface to this. In any case, we can maintain both functionalities by
> checking the type of the parameter.
I would actually slightly prefer to remove the previous interface. It
seems very hard to use; worse, it seems like it would be easy to
accidentally write buggy code using the old interface.
(I actually have code that finds f.coefficient({y:0}) by starting with
f and subtracting out all larger coefficients of y.)
Carl
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to sage-devel@googlegroups.com
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://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/
-~----------~----~----~----~------~----~------~--~---
