On Wednesday, April 22, 2015 at 11:02:52 AM UTC-7, vdelecroix wrote: > Definitely! A side effect of the current behavior > > sage: p = ZZ['x'](range(5)) > sage: f = sum(i*x**i for i in range(5)) > sage: str(p) == str(f) > True > sage: p == f > (((4*x + 3)*x + 2)*x + 1)*x == 4*x^4 + 3*x^3 + 2*x^2 + x >
which is true and is not essentially different from sage: f == f 4*x^4 + 3*x^3 + 2*x^2 + x == 4*x^4 + 3*x^3 + 2*x^2 + x so I'm not so sure this would really change if just changing the evaluation scheme of polynomials at symbolic input would change that in a significant way. Naturally, for multivariate polynomials, which are usually sparsely represented, this issue doesn't arise: sage: ZZ['x','y'](f)(x,0) 4*x^4 + 3*x^3 + 2*x^2 + x -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
