On Wed, Feb 16, 2011 at 7:06 PM, mmarco <mma...@unizar.es> wrote:
> I already new all that, but my question would be: "why
> S.has_coerce_map_from(R) returns False?"

Because S(r) is doing a "converion" rather than a "coercion".
Coercion is implicit and happens when doing arithmetic.
S.has_convert_map_from(R) should return True.

--Mike

-- 
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe from this group, send an email to 
sage-devel+unsubscr...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org

Reply via email to