On 2018-08-12 17:39, vdelecroix wrote:
To construct the element x^-1 one has to use 1 // x because // stands for "internal division" in Sage
What does "internal division" mean? I would define // as Euclidean division (in some unspecified way since Euclidean division is not unique). So I wonder how you would define a // b on the Laurent polynomial ring in general (where b is not a power of x).
I would define a // b on the Laurent polynomial ring simply as extending the operation // of ordinary polynomials. That way, 1 // x should be 0.
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