Hi, this might be a design decision, so I haven't filed a bug report for it yet. However, it seems that coefficient is returning the wrong type when it's called on multinomials. Here is an example code:
sage: K.<x,y,z>=QQ[] sage: f = x^3+y^3+z^3 sage: f.coefficient([3,0,0]).parent() Multivariate Polynomial Ring in x, y, z over Rational Field It makes more sense for the above return value to be the Rational Field. Similarly, f.coefficient([3,None,None]).parent(), should probably return "Multivariate Polynomial Ring in x, z over Rational Field". Should I file a bug for this? Soroosh --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
