On 2015-05-09 13:37, Vincent Delecroix wrote:
Hello,
I am trying to speed up the creation of polynomial rings. Doing so, I
rewrote most of the factory PolynomialRing and I do have a question.
What should we do with
sage: R.<x,y,z> = PolynomialRing(QQ, 'xyz')
or
sage: R.<x,y,z> = PolynomialRing(QQ, 'abc')
I see two reasonable options:
1 - raise a ValueError saying that the variable names are specified twice
This should obviously be an error. But I guess a TypeError is more
applicable, that's what is normally raised when calling a function with
the wrong number or kind of arguments.
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