Dear Sage team,
sage: I=R.ideal('a*b-1','c*d-1')
sage: R=PolynomialRing(QQ,'a,b,c,d')
sage: I=R.ideal('a*b-1','c*d-1')
sage: type(I)
<class
'sage.rings.polynomial.multi_polynomial_ideal.MPolynomialIdeal'>
sage: type(I.groebner_basis())
<class 'sage.structure.sequence.Sequence'>
I am very surprized that I.groebner_basis() does not return an ideal.
Is it really needed to say:
sage: J=R.ideal(I.groebner_basis())
sage: type(J)
<class
'sage.rings.polynomial.multi_polynomial_ideal.MPolynomialIdeal'>
This looks strange to me (close to a bug).
Yours
Simon
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